Pyrolysis and Stages of Burning

[@dennisrhodveneracion320]

VENERACION DENNIS RHOD B . STAGE OF BURNING Pyrolysis - It is the result or the effect when the burning material or when a material is burned or when the combustible material is consumed by the fire - pyrolysis is a chemical process whereby fire consumes the most solid part of the fuel Process of pyrolysis - the fuel is heated until its temperature reaches its fire point. when the fuel is already consumed it will no longer produce vapor. It basically means that once the materials, energy, and fuel are already consumed there will be no more vapors. Remember it is the vapor that is being burned not the material. Stages of burning Incipient Phase - beginning stage of fire it includes the preparation it includes when it spark or ignition starts. Free burning phase - materials or structures are burning in the presence of adequate oxygen supply Smoldering mode - burning stage were in flame ceases but then smoke and heat completely fill the confined room. Combustion products and their effect in the human body Smoke • irritate the respiratory tract • damage to the respiratory tract • abnormally stimulates tear glands • Impaired vision • cause excessive sneezing and coughing Fire gasses • Causes death by asphyxia • causes swelling of the lungs

[@ezra.wwrr72]

Pyrolysis- thermal decomposition of combustible matter Process of Pyrolysis: -fuel is heated until reaches fire point. -decomposition takes place, moisture in the fuel is converted to vapor. Pyrolysis - fire consumes the most solid part of fuel Stages of burning: Incipient phase- beginning stage of fire Free burning phase- materials or structures are burning of adequate oxygen supply. Smoldering mode- flame ceases but dense smoke and heat Effects of combustion products to the human body: Smoke -irritates respiratory tract -damage respiratory tract -abnormally stimulates tear glands -impaired vision -cause excessive sneezing and coughing Fire gases Carbon monoxide- causes death by asphyxia Carbon dioxide- swelling of lungs

[@federizoeugener.8070]

Federizo, Eugene R (3C2) PYROLYSIS - Thermal decomposition of combustile matter; chemical decomposition of a solid fuel through the action of heat. - when material is consumed by the fire. Ex. Charcoal. - fuel is already consumed. Pyrolysis - chemical process whereby fire consumes the most solid part of the fuel. Process of Pyrolysis: • the fuel is heated until its temperature reaches the fire point. • decomposition takes place - moisture in the fuel is converted to vapor. WHAT ARE THE STAGES OF BURNING. INCIPIENT PHASE - begining stage of fire . - preparation, start of fire or ignition. - begin with normal temperature. - thermal drops accumulate higher point. - flame temperature of 1000°F - producing pyrolysis products; carbon dioxide & monoxide, sulfux dioxide, water vapor and other gases. FREE BURNING PHASE - materials or structures burning in the presence of adiquate oxygen supply. - actually the object nearby where the fire originaty are already consumed. Characteristics: - fire has involved more fuel. - oxygen supply is deplated. - heat accumulates at upper area. - temperature exceeds more that what is mentioned in Incipient phase (1000°F). - 1000°F becomes 1300°F and the area is fully involved. SMOLDERING MODE - Burning stage wherein flame cease but dense smoke and heat completely fill the confined room. - fuels are already consumed. - there is no fire but what we see is the light, heat and smoke. Characteristics: - fire may die and leave only glowing inverse or super heated fuel under the pressure of little oxygen. - intense heat will vaporise lighter fuel components such as hydrogen, methane. - increasing the hazard and temperature through the building is very high and normal breathing is not possible. - there is oxygen deficiency. Effects of combustion products to the human body. SMOKE: • irritates the resperatory tract. • damage the resperatory tract. • abnormally stimulates tear glands. • impaired vision. • cause excessive sneezing and coughing. • there is no longer fresh air but the smoke. FIRE GASES • Causes death by ASPHYXIA - Carbon monoxide. •Causes smelling of the lungs - carbon dioxide. Carbon Dioxide V.S Carbon Monoxide •Carbon Dioxide Produced by - combustion, breathing, decay of organic matter. Lighter/Heavier than air - 55% heavier. Flamable - No. Detectable - Can smell at very high concentration. Dangerous - Only when it replaces almost all oxygen. •Carbon Monoxide Produced by - Consumption when too little oxygen is available. Lighter/Heavier than air - 2% lighter. Flamable - Yes. Detectable - Can't be smelled or seen. Dangerous - Toxic to all life at over 50parts per million.

[@rendelallenexconde4746]

F&A Inv Exconde, Rendel Allen G. Pyrolysis - It is the result or the effect when the burning material or when a material is burned or when the combustible material is consumed by the fire - pyrolysis is a chemical process whereby fire consumes the most solid part of the fuel Process of pyrolysis - the fuel is heated until its temperature reaches its fire point. when the fuel is already consumed it will no longer produce vapor. It basically means that once the materials, energy, and fuel are already consumed there will be no more vapors. Remember it is the vapor that is being burned not the material. Stages of burning Incipient Phase - beginning stage of fire it includes the preparation it includes when it spark or ignition starts. Free burning phase - materials or structures are burning in the presence of adequate oxygen supply Smoldering mode - burning stage were in flame ceases but then smoke and heat completely fill the confined room. Combustion products and their effect in the human body Smoke • irritate the respiratory tract • damage to the respiratory tract • abnormally stimulates tear glands • Impaired vision • cause excessive sneezing and coughing Fire gasses • Causes death by asphyxia • causes swelling of the lungs

[@mharandrewmoncada8483]

MONCADA,MHAR ANDREW D. 3C1 Pyrolysis and the stages of burning Pyrolysis >result of burning materials >thermal decomposition of combustible matter; >decomposition of a solid fuel through the action of heat >Result or effect when a burning material is burned or when combustible material is consumed by the fire Process of Pyrolysis: 1. Fuel is heated until its temperature reaches its fire point 2. Decomposition take place - fuel is converted to vapor Vapor is the one that is being burned and not the material Stage of Burning Incipient Phase >beginning stage of fire >preparation and started to ignition >burning the piece of wood Characteristics: >Normal room temperature >Oxygen plentiful >Thermal updraft >Flame temperature 1000 degree F. Free Burning Phase > burning in the presence of adequate oxygen supply >consumed the other object Characteristics: >Fire has involved more fuel >Oxygen supply is depleted >Heat accumulates at upper area Temperature 800-1000 F base of fire, 1300 1600 F the ceiling >Chemical process whereby fire consumes the most solid part of the fuel. When the wood didn't produce vapor it will turn on into charcoal because the vapor is already consumed. Smoldering Phase >burning stage wherein flame ceases >no fire but there heat, light and smoke >fuels are already consumed Characteristics: >Oxygen drop to 13% below >Flames may die and leave only glowing embers >Intense heat will vaporize >Oxygen deficiency may cause back draft. Effects of Combustion products to human body: Smoke: >Irritates the respiratory tract >Damage the respiratory tract >Abnormally stimulates tear glands >Impaired vision >Cause excessive sneezing and coughing Fire Gases Causes death by Asphyxia carbon monoxide Causes swelling of the lungs carbon dioxide Carbon Dioxide >Combustion breathing, decay of organic matter >55% heavier >No flame >Can smell >Dangerous when it replaces almost all oxygen Carbon Monoxide >Combustion when too little oxygen is available >2% lighter >ts flammable >Can’t be seen or smell >Toxic to almost all life at over 50 parts per million

[@loueljaysilang6446]

Pyrolysis-It is the result or the effect when the burning material or when a material is burned or when the combustible material is consumed by the fire pyrolysis is a chemical process whereby fire consumes the most solid part of the fue Process of pyrolysis the fuel is heated until its temperature reaches its fire point. when the fuel is already consumed it will no longer produce vapor. It basically means that once the materials, energy, and fuel are already consumed there will be no more vapors. Remember it is the vapor that is being burned not the material. Stages of burning Free bIncipient Phase beginning stage of fire it includes the preparation it includes when it spark or ignition starts. urning phase - materials or structures are burning in the presence of adequate oxygen supply Smoldering mode - burning stage were in flame ceases but then smoke and heat completely fill the confined room. Combustion products and their effect in the human bod Smoke 1 irritate the respiratory tract 2 damage to the respiratory tract 3 abnormally stimulates tear glands 4 Impaired vision 5 cause excessive sneezing and coughing Fire gasses *Causes death by asphyxia *causes swelling of the lungs arbon Dioxide combustion breathing, decay of organic matter No flame Can smell -Dangerous when it replaces almost all oxygen Carbon Monoxide Combustion when too little oxygen is availabl Its flammable Can’t be seen or smell Toxic to almost all life at over 50 parts per million

[@pgen_jhajhanaron]

📌 PYROLYSIS - the fire consumes the most solid part of the fuel. (Ex. Charcoal) 📌 PROCESS OF PYROLYSIS 1. The fuel is heated until its temperature reaches its fire point. 2. Moisture in the fuel is converted to a vapor. 3. Decomposition produces combustible vapors that rise to the surface of the fuel. 4. Free radicals undergo combustion. • FREE RADICALS- are combustible vapor such as: hydrogen gas, carbon monoxide, carbon dioxide, nitrogen STAGES OF BURNING • INCIPIENT PHASE- beginning stage of fire • FREE BURNING PHASE- materials or structures are burning in the presence of adequate oxygen supply. • SMOLDERING MODE- wherein flame ceases but dense smoke and heat completely fill the confined room. 📌 COMBUSTION PRODUCTS AND THEIR EFFECT TO HUMAN BODY • SMOKE -irritates the respiratory tract -damage to respiratory tract -abnormally stimulates tear glands -impaired vision • FIRE GASES -cause death by ASPHYXIA (carbon monoxide) -causes swelling of the lungs (carbon dioxide) CARBON DIOXIDE Flammable- NO Produced by- combustion, breathing, decay of organic matter. Lighter/heavier than air- 55% heavier Detectable- can smell at very high concentration Dangerous- only when it replaces almost all oxygen CARBON MONOXIDE Flammable- YES Produced by- combustion when too little oxygen is available Lighter/heavier than air- 2% lighter Detectable- can't be smelled or seen Dangerous- toxic almost all life at over 50 parts per million NARON, JANET M. BSCRIM-3C3

[@malabananjohnkenethg.1350]

Pyrolysis and stage of burning Pyrolysis is thermal decomposition of combustible matters. It is also chemical decomposition of a solid fuel through the action of heat Process of pyrolysis *The fuel is heated until its temperature reaches its fire point. If the fuel is already consumed, it will not produce vapor. Only means that the material and energy is already consumed. *The composition takes place when moisture in the fuel is converted to vapor. Combustible vapors( free radicals) Pyrolysis is chemical process whereby fire consumes the most solid part of fuel. What are the stages of burning? *Incipient face is beginning stage of fire. It includes preparation started to produce fire. *Free burning face is materials or structures are burning in the presence of adequate oxygen supply. *Small during mode when burning stage wherein the flame ceases but then smoke and heat completely fill the confined room. It is also when flames may die and may leave only glowing inverse under pressure oxygen. Effects of combustion products to the human body Smoke: * Irritates the respiratory tract *Damage to the respiratory tract *Abnormally stimulates tear glands *Impaired vision *Causes excessive sneezing and coughing Fire Gases: *Causes death by asphyxia-carbon monoxide (dangerous) *Causes swelling of lungs -Carbon dioxide -there are both colorless

[@salahoddinsultan8071]

🗒Pyrolysis - Thermal decomposition of combustible matter: chemical decomposition of a solid fuel through the action of heat 🗒Process of Pyrolysis 1. Fuel is heated until its temp. Reaches its fire point 2. Decomposition takes place-moisture in the fuel is converted to vapor 3. Decomposition produces combustible vapor that rise to the surface of the fuel 🗒Stages of Burning 📍Incipient Phase-beginning stage of fire 📍CHARACTERSITICS - Normal room temperature or normal temperature - oxygen plentiful - Thermal updraft rise at higher points - Flame temp. Of 1000°f - Temp. Are base of the fire is 400-800" - celling temp. Is about 200°f - Producing pyrolysis products 📍Free burning phase- materials or structures are burning in the presence of adequate oxygen supply 📍Smoldering mode burning stage wherein flame ceases but dense smoke and heat completely fill the confined room 🗒Effects of combustion products to the human body: 📍Smoke: -irritates the respiratory tract -damage to respiratory tract -abnormally stimulates tear glands -Impaired vision -cause excessive sneezing and coughing 📍Fire gases: -causes death by ASPHYXIA-carbon monoxide -causes swelling of the lungs-carbon dioxide 📍Carbon dioxide -produced by combustion, breathing, decay of organic matter -55% heavler -It is not flammable -Detectable? Can be smell at very high concentrations -Dangerous? Only when it replaces almost all oxygen 📍Carbon monoxide -produced by combustion, when too little oxygen is available -2% lighter -flammable? Yes -Detectable? Can't be smelled or seen -Dangerous? Toxic to almost all life at over 50 parts per million

[@llonajoecielarosemariel.4803]

PYROLYSIS -thermal decomposition of combustible matter -chemical decomposition of a solid fuel through the action of heat NOTE: it is the result or the effect when the burning material or when the material is burn is consumed by the fire, it creates or show up pyrolysis PROCESS OF PYROLYSIS > the fuel is heated until its temperature reaches its fire point NOTE: when the energy is already consumed it will not already produce vapor. >decomposition takes place-moisture in the fuel is converted to vapor. CHEMICAL PROCESS >whereby fire consumes the most solid part of the fuel EXAMPLE: when the wood is exposed to heat, when there is already fire consumes the vapor and the wood does no longer produce vapor it becomes a charcoal. STAGES OF BURN 1. INCIPIENT PHASE > the beginning stage of fire > It includes the preparation and when a time started to produce spark. > begin with a normal temperature > thermal updraft accumulates a higher point >1000 degree Fahrenheit 2. FREE BURNING PHASE > materials or structures are burning in the presence of adequate oxygen supply CHARACTERISTICS: > fire has involved more fuel >oxygen supply is depleted > heat accumulates at upper area >temperature exceeds more than what is mentioned in the incipient stage (1000 degree Fahrenheit) 3. SMOLDERING MODE > burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. CHARACTERISTICS >flames will die only glowing inverse or superheated fuel under the pressure with little oxygen > intense heat will vaporize lighter fuel components such as hydrogen and methane increasing the hazard and temperature throughout the building is very high and normal breathing is impossible because it only produces is the heat as well as the light accompanied by a smoke >there is oxygen deficiency EFFECTS OF COMBUSTION PRODUCTS TO THE HUMAN BODY: SMOKE >irritates the respiratory tract > damages to the respiratory tract > abnormally stimulates tear glands > impaired vision > causes excessive sneezing and coughing FIRE GASES > causes death by asphyxia caused by carbon monoxide > causes swelling of the lungs caused by carbon dioxide CARBON DIOXIDE - in terms of flammability, it is not flammable -detectable, can smell at very high concentrations - dangerous, only when it replaces almost all the oxygen - 55% heavier than air - produced by combustion, breathing, decay of organic matter CARBON MONOXIDE - Produced by combustion when too little oxygen is available - 2% lighter than air - detectable, can't be smelled or seen - dangerous, toxic to almost all life at over 50 parts per million - more flammable than carbon dioxide NOTE: both colorless

[@mendozalovelyjeanice3420]

KeyNotes Mendoza, Lovely Jeanice M. 3c1 •Pyrolysis and the stages of burning 🚩Pyrolysis - result of burning materials -thermal decomposition of combustible matter; -decomposition of a solid fuel through the action of heat - Result or effect when a burning material is burned or when combustible material is consumed by the fire 🚩•Process of Pyrolysis 1. Fuel is heated until its temperature reaches its fire point 2. Decomposition take place - fuel is converted to vapor Vapor is the one that is being burned and not the material 🚩•Stage of Burning ▪︎Incipient Phase - beginning stage of fire -preparation and started to ignition -burning the piece of wood •Characteristics -Normal room temperature -Oxygen plentiful -Thermal updraft -Flame temperature 1000 degree F. •Free Burning Phase - burning in the presence of adequate oxygen supply -consumed the other object •Characteristics -Fire has involved more fuel -Oxygen supply is depleted -Heat accumulates at upper area Temperature 800-1000 F base of fire, 1300 1600 F the ceiling •Chemical process whereby fire consumes the most solid part of the fuel. When the wood didn't produce vapor it will turn on into charcoal because the vapor is already consumed. •Smoldering Phase - burning stage wherein flame ceases -no fire but there heat, light and smoke -fuels are already consumed •Characteristics -Oxygen drop to 13% below -Flames may die and leave only glowing embers -Intense heat will vaporize -Oxygen deficiency may cause back draft. 🚩•Effects of Combustion products to human body ▪︎Smoke -Irritates the respiratory tract -Damage the respiratory tract -Abnormally stimulates tear glands -Impaired vision -Cause excessive sneezing and coughing 🚩Fire Gases Causes death by Asphyxia carbon monoxide Causes swelling of the lungs carbon dioxide •Carbon Dioxide -Combustion breathing, decay of organic matter -55% heavier -No flame -Can smell -Dangerous when it replaces almost all oxygen •Carbon Monoxide -Combustion when too little oxygen is available -2% lighter -Its flammable -Can’t be seen or smell -Toxic to almost all life at over 50 parts per million

[@andrieasis7480]

PROCESS OF PYROLYSIS: 1. The fuel is heated until its temperature reaches its fire point. 2. Decomposition takes place - moisture in the fuel is converted to vapor. 3. Decomposition produces combustible vapors that rise to the surface of the fuel. Combustible vapors are technically termed as free radicals. 4. Free radicals undergo combustion. FREE RADICALS- are combustible vapors such as: - Hydrogen Gas, Carbon Monoxide ,Carbon Dioxide , Nitrogen L. STAGES OF BURNING Incipient Phase - beginning stage of fire. Characteristics: - Normal room temperature , Oxygen plentiful ,.Thermal updraft rise accumulates at higher point,Flame Temperature of 1000 degree F. , The temperature at the base of the fire is 400-800oF , Ceiling temperature is about 2000F , Producing pyrolysis products: (CO2, CO, SO2. Water Vapor and other gases). Free Burning Phase - burning stage whereby materials or structures are burning in the presence of adequate oxygen supply. Characteristics: 1. Fire has involved more fuel. 2. Oxygen supply is depleted. 3. Heat accumulates at upper area. 4. Temperature: a) 800 - 1000 oF @ the base of fire b) 1200 - 1600oF @ the ceiling 5. Accelerated pyrolytic processes take place. 6. Development of convection current; formation of thermal column as heat rises. 7. Pyrolytic decomposition moves upward on the walls (crawling of the flame) leaving burnt pattern (FIRE FINGERPRINTS). Carbon Dioxide is produced by combustion, breathing, decay of organic matter, and 55 percent heavier, Flammable? No, Detectable can smell at very high concentrations, Dangerous only when it replaces almost all oxygen. And Carbon Monoxide also is produced by Combustion when too little oxygen is available, 2 percent lighter, Flammable? Yes, Detectable is can't smelled or seen, Dangrous , toxic to almost all life at over 50 parts per million.

[@nimfasabiduria614]

Pyrolysis and stages of burning Pyrolysis- It is the result or the effect when the burning material or when a material is burned or when the combustible material is consumed by the fire - pyrolysis is a chemical process whereby fire consumes the most solid part of the fuel Process of pyrolysis- the fuel is heated until its temperature reaches its fire point. when the fuel is already consumed it will no longer produce vapor. It basically means that once the materials, energy, and fuel are already consumed there will be no more vapors. Remember it is the vapor that is being burned not the material. Stages of burning Incipient Phase- beginning stage of fire it includes the preparation it includes when it spark or ignition starts. free burning phase- materials or structures are burning in the presence of adequate oxygen supply smoldering mode- burning stage were in flame ceases but then smoke and heat completely fill the confined room. combustion products and their effect in the human body SMOKE • irritate the respiratory tract • damage to the respiratory tract • abnormally stimulates tear glands • Impaired vision • cause excessive sneezing and coughing FIRE GASES • Causes death by asphyxia • causes swelling of the lungs

[@panizalesmclenard7657]

Pyrolysis- is a thermal decomposition of combustible matter. - it is a chemical decomposition of solid fuel through the action of heat. Process of Pyrolysis 1. The fuel is heated until its temperature reaches its fire point. 2. Decomposition takes place when the moisture in the fuel is converted to vapor. Ex. Chemical process whereby fire consumes the most solid part of the fuel. Stages of Burning 1. Incipient phase- it is the beginning stage of burning. 2. Free burning phase- materials or structures are burning in the presence of adequate oxygen supply. 3. Smoldering mode- burning is stage wherein flame ceases but dense smoke and heat completely filled the confined room. Effects of Combustion Products to the human body. * SMOKE 1. Irritates the respiratory tract. 2. Damage to the respiratory tract. 3. Abnormally simulate tear glands. 4. Impaired vision. 5. Excessive sneezing and coughing. FIRE GASES 1. Carbon dioxide - causes swelling of lungs. Produced by combustion, decay of organic matter. 55% heavier than air. Not flammable. Can be smelled at very high concentration. Dangerous when replaces almost all oxygen. 2. Carbon monoxide - causes death by asphyxia. Produced by combustion when too little oxygen is available. 2% lighter than air. Flammable. Cannot be seen or smelled. Toxic at almost all life at over 50 parts per million.

[@jerseyshea]

SHEA, JERSEY M. 3C3 PYROLYSIS AND STAGES OF BURNING Pyrolysis Thermal decomposition of combustible matter; chemical decomposition of a solid fuel thru the action of heat. Process of Pyrolysis: 1)The fuel is heated until its temperature reaches its fire point. Note: Vapor is the one being burned and not the material. 2)Decomposition takes place-fuel converted into vapor 3) Chemical process whereby fire consumes the most solid part of the fuel. What are the stages of burning? Incipient stage -beginning stage of burning Free burning stage -materials structures are burning in the presence of adequate oxygen supply Smoldering mode -flame ceases -you can only see the presence of light and smoke What are the characteristics of Smolderint mode? -Flame may die and leave only heated fuel under the pressure with little oxygen. -Intense heat will vaporize lighter fuel components such as hydrogen, methane increasing the hazard and temperature in the building. Effects of combustion productd to the human body: Smoke -irritates the respiratory tract -damage to the resporatory tract -abnormally stimulates tear glands Fire gases -causes death by Asphyxia (carbon monoxide) -causes swelling by the lungs (carbon dioxide) The distinction between carbon dioxide and carbon monoxide: -Carbon d. is not flammable -Carbon m. is flammable -Carbon d. can smell at very high temperature -Carbon m. can't be smelled or seen -Carbon d. is 55% heavier -Carbon m. is 2% lighter

[@calatravashaneaira1975]

PYROLYSIS - thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat. -result or the effect when a combustible material is consumed by fire, it shows the pyrolysis. -chemical process whereby fire consumes the most solid part of the fuel. PROCESS OF PYROLYSIS: * the fuel is heated until its temperature reaches its fire point. * Decomposition takes place - moisture in the fuel is converted to vapor. -produces combustible vapors that rise to the surface of the fuel. Note: Combustible vapors are technically term as FREE RADICALS. STAGES OF BURNING: * Incipient Phase - beginning stage of fire. Characteristics: -begins with a normal room temperature. -when the oxygen is plentiful -thermal updraft rise accumulates at higher point -flame temperature of 1000 degree F. -producing pyrolysis products (carbon and sulfur dioxide, carbon monoxide,water vapor and other gases) * Free Burning Phase - materials or structures are burning in the presence of adequate oxygen supply. Characteristics: -fire has involved more fuel -oxygen supply is depleted -heat accumulates an upper area -temperature exceeds 1,300 degree F and area is fully involved. * Smoldering Mode - burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. Characteristics: -flames may die and leave only glowing embers or superheated fuel under pressure with little oxygen. -intense heat will vaporize lighter fuel components such as hydrogen, methane, increasing the hazard. -temperature throughout the building is very high and normal breathing is not possible. EFFECTS OF COMBUSTION PRODUCTS TO THE HUMAN BODY: SMOKE * Irritates the respiratory tract * Damage the respiratory tract * Abnormally stimulates tear glands * Impaired vision * Cause excessive sneezing and coughing FIRE GASES * Causes death by ASPHYXIA - carbon monoxide (more flammable,can’t be smelled or seen,toxic to almost all life at over 50 parts per million,colorless,more dangerous) * Causes swelling of the lungs - carbon dioxide (not flammable,detectable,its dangerous only when it replaces almost all oxygen,colorless)

[@gapunuanreym.8872]

Pyrolysis and stage of burning Pyrolyisis - thermal decomposition of combustile matter. Chemical decomposition of a solid fuel through the action of hear. Process of pyrolysis • the fuel is heated until its temperature reaches its fire point. • decomposition takes place moisture in the fuel is converted to vapor. Stages of burning 1. Incipient phase - beginning stage of fire. 2. Free burning phase - materials or structures are burning in the presence of adequate oxygen supply. 3. Smoldering mode - burning stage wherein flame ceases but dense smoke and heat completely fill in the confined room Effects of combustion products to the human body. Smoke • irritates the respiratory tract • damage to the respiratoty tract • abnormally stimulates tear glands • impaired vision

[@viseyrodgerleo3866]

PYROLYSIS - a thermal decomposition of combustible mattter; chemical decomposition of a solid fuel through action of heat - chemical process whereby fire consumes the most solid part of the fuel PROCESS OF PYROLYSIS 1. fuel is heated until its temperature reaches its fire point 2. decomposition takes place - moisture in the fuel is converted to vapor 3. decomposition produces combustible vapors that rises to the surface of the fuel. Combustible vapors are technically termed as free radicals 4. Free radicals undergo combustion STAGES OF BURNING 1. incipient phase - beginning stage of fire CHARACTERISTICS OF INCIPIENT PHASE: - Normal room temperature - Oxygen plentiful - Thermal updraft rise accumulates at higher point. - Flame Temperature of 1000 degree F. - The temperature at the base of the fire is 400-800oF - Ceiling temperature is about 2000F - Producing pyrolysis products: (CO2, CO, SO2. Water Vapor and other gases) 2. FREE BURNING PHASE - burning stage whereby materials or structures are burning in presence of adequate oxygen supply CHARACTERISTICS OF FREE BURNING PHASE : - Fire has involved more fuel. - Oxygen supply is depleted. - Heat accumulates at upper area. - Temperature: 800-1000 degree F of fire base and 1200-1600 degree F of ceiling - Accelerated pyrolytic processes take place. - Development of convection current; formation of thermal column as heat rises. - Pyrolytic decomposition moves upward on the walls leaving burnt pattern - Occurrence of FLASHOVER. - Area is fully involved. 3. SMOLDERING PHASE - flame causes but dense and heat completely fill the confined room CHARACTERISTICS OF SMOLDERING PHASE: - Flames may die and leave only glowing embers or superheated fuel under pressure with little oxygen. - Intense heat will vaporize lighter fuel components such as hydrogen, methane, increasing the hazard. - Products of incomplete combustion increase, particularly carbon monoxide with an ignition temperature of about 11250F. - Temperature throughout the building is very high and normal breathing is not possible. EFFECTS OF COMBUSTION TO THE HUMAN BODY: SMOKE - irritates the respiratory tact (difficult to breathe) - damage to the respiratory tact - abnormally stimulates tear glands - impaired vision - causes excessive sneezing and coughing FIRE GASES CARBON MONOXIDE (produced by combustion when too little oxygen is available, flammable, can't be smelled or seen and toxic to almost all fire) - causes death by asphyxia (suffocation) CARBON DIOXIDE (produced by combustion, breathing, decay of organic matter, 55% heavier, detectable, can smell at very high concentrations, dangerous only when it replaces almost all oxygen and it is colorless) - Causes swelling (abnormal enlargement) of the lungs

[@shainadelmundo8074]

Pyrolysis- through the action of heat. It is the result when a burning material is consumed by the fire it will show the pyrolysis. process of pyrolysis: • The fuel is heated until its temperature reaches its fire point. • Decomposition takes place-moisture in the fuel is converted to vapor. Pyrolysis- chemical process whereby consumes the most solid part of the fuel. Stages of burning Incipient phase- beginning stage of fire. Begins with normal temperature. Free burning phase- materials or structures are burning in the presence of adequate oxygen supply. Smoldering mode Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. Fire Gases • Causes death by ASPHYXIA- carbon monoxide (can’t be smelled or seen) • Causes swelling of the lungs- carbon dioxide (not flammable)

[@tutorjosette2995]

TUTOR, JOSETTE 3C3 PYROLYSIS AND STAGE OF BURNING PYROLYSIS - It is the thermal decomposition of combustible matter, chemical decomposition of solid fuel through the action of heat. PROCESS OF PYROLYSIS - the fuel is heated until it’s temperature reaches it’s fire point. • Decomposition takes place moisture in the fuel is slow converted to the vapor • The decomposition produces combustible vapors that rise to the surface of the fuel. • Chemical process whereby fire consumes the most solid part of the fuel. What are the stages of burning? INCIPIENT PHASE - The beginning stages of fire and includes the preparation when you started fire or ignition CHARACTERISTICS: *Normal room temperature *When the oxygen is plentiful *When thermal updraft rise accumulates higher point * Flame temperature is 1000 F. FREE BURNING PHASE - Materials or structures are burning in the presence of adequate oxygen supply CHARACTERISTICS: *Involved more fuel * Oxygen supply is depleted *Heat accumulates upper area with a temperature exceed the incipient phase * Flame temperature 1,300 degree F. in fire burning SMOLDERING MODE - It’s the burning stage wherein flame ceases but dense smoke and heat completely fill the confined room COMBUSTION PRODUCTS AND THEIR EFFECTS Effects of combustion to the human body: SMOKE - Initiates the respiratory tract - Damage to the respiratory tract - Abnormally stimulates tear glands - Improve vision Cause excessive sneezing and coughing FIRE GASES • Cause death by ASPHYXIA - Carbon monoxide • Causes swelling of the lungs - Carbon dioxide DISTRUCTION CARBON MONOXIDE -More flammable, cannot be smell or seen. CARBON DIOXIDE - Detectable , almost oxygen, • Both carbon dioxide and carbon monoxide are odorless

[@ryanbautista8223]

● PYROLYSIS -Thermal decomposition of combustile matter; chemical decomposition of a solid fuel through the action of heat. PROCESS OF PYROLYSIS 1. fuel is heated until its temperature reaches its fire point. 2. decomposition takes place-moisture in the fuel is converted to vapor. 3. decomposition produces combustible vapors that rises to the surface of the fuel. Combustible vapors are technically termed as free radicals 4. Free radicals undergo combustion Stages of Burning 1. Incipient Phase- beginning stage of fire. -Includes the preparation, time started to produce fire or ignition. 2. Fire Burning Phase- materials or structures are burning in the presence of adequate oxygen supply. 3.Smoldering Mode- burning stage when flame ceases but dense smoke amd heat completely fill the confined room. •Fuels are already consumed •Light and smoke • Glowing imberse or super heated fuel under pressure with little oxygen • Intense heat will vaporize lighter fuel components such as hydrogen, metane increasing the hazard and temperature. • Oxygen deficiency. CHARACTERISTICS: 1. Fire involve more fuel 2. Oxygen supply is depleted 3. Heat accumulates at upper area 4. Temperature: 800-1000F at base fire1200-1600F at the ceiling 5. Accelerated pyrolytic processes take place. 6. Development of convection current. 7. Pyrolytic decomposition moves upward on the walls 8. Occurrence of flashover 9. Area is fully involved. SMOLDERING PHASE-burning stage wherein flame cease but dense smoke and heat completely fill the confined room. CHARACTERISTICS: 1. Oxygen drops at 13 percent, causing the flame to vanish 2. Flames may die and leave only glowing embers 3. Intense heat will vaporize lighter fuel 4. Products of incomplete combustion increase. CHARACTERISTICS: 1. Oxygen drops at 13 percent, causing the flame to vanish 2. Flames may die and leave only glowing embers 3. Intense heat will vaporize lighter fuel 4. Products of incomplete combustion increase 5. Temperature throughout the building is very high and normal breathing is not possible 6. Oxygen deficiency may cause back draft. EFFECTS OF COMBUSTION PRODUCTS TO HUMAN BODY Irritated respiratory tract ●ormally stimulates tear glands •Impaired vision •Cause excessive sneezing and coughing FIRE GASES •causes death by asphyxia •carbon monoxide •Causes swelling of lungs •carbon dioxide. PYROLYSIS-a thermal decomposition of combustible mattter; chemical decomposition of a solid fuel through action of heat •chemical process whereby fire consumes the most solid part of the fuel.

[@gapunayrommela.5998]

Pyrolysis - Thermal decomposition of combustible matter: chemical decomposition of a solid fuel through the action of heat Effect when material is burn or consume by the fire it will show or create pyrolysis Example: charcoal Pyrolysis - The fuel is heated until its temperature reaches its fire point. - Decomposition take place moisture in the fuel is converted to vapor Decomposition produce combustible vapor that rise to the surface of the fuel technically term as pre- radical Pyrolysis - chemical process whereby fire consume the most solid part if the fuel STAGE OF BURNING Incipient phase- beginning stage of fire Free burning phase - materials or structure are burning in the presence of the adequate oxygen supply Smoldering mode- burning stage wherein flame cease but dense smoke and heat completely confined room EFFECTS OF COMBUSTION PRODUCT TO HUMAN BODY SMOKE -Irritates the respiratory tract - damage to the respiratory tract - abnormally stimulate rear glands -Impaired vision - cause excessive sneezing and coughing Fire gases - Cause death by ASHYXIA - carbon monoxide - Cause swelling of the lungs- carbon dioxide Co2 Carbon dioxide No flammable 55% heavier Can smell Only when it replace almost all oxygen take time Combustion breathing, decay of organic matter Co Carbon monoxide More flammable 2% lighter Cannot smell Toxic to almost all life at 50 parts pre millions Most dangerous Combustion when too little oxygen is available

[@murillodhenden]

Pyrolysis - thermal decomposition of combustible matter chemical decomposition of a solid fuel through the action of heat. Process of pyrolysis Decomposition takes place - moisture in the fuel is converted to vapor. Chemical process - fire consumes the most solid part of the fuel. Free burning phase - materials os structures are burning in the presence of edequate oxygen supply. Smoldering mode- flame ceases but dense smoke and completely fill the confined room. Smoke- irritates the respiratory tract Damage to the respiratory tract Abnormally stimulates tear grands Impaired vision Fire gases- causes death by asphyxia- carbon monoxide Cause swelling of the lungs - carbon dioxide

[@magbanuajohnkennethl.70]

MAGBANUA, JOHN KENNETH L. 3C3 PYROLYSIS - chemical decomposition of solid fuel through the action of heat. Process of PYROLYSIS 1. When the fuel is heated until its temperature reaches it's fire point. 2. Decomposition takes place- moisture in the fuel os converted to vapor. Example of PYROLYSIS Chemical process- the fire consume the solid part of the fuel Incipient process- beginning stage of fire Free Burning phase- materials or structure bare burning in the presence of adequate oxygen supply Smoldering mode- burning stage wherein flame ceases. EFFECTS OF COMBUSTION PRODUCT TO THE HUMAN BODY -irritates the respiratory tract -damage to the respiratory tract -abnormally stimulates tear glands -Impaired vision -cause excessive sneezing and coughing Fire gases Causes death by ASPHYXIA - carbon monoxide Causes swelling of the lungs- carbon dioxide CARBON DIOXIDE - molecular structure Produced by- combustion, breathing, decay of organic matter. Lighter/heavier than air. 55% heavier Flammable- NO Detectible- can smell at very high concentration. Dangerous- only when it replaces almost all oxygen. CARBON MONOXIDE Produced by combustion when two little oxygen is available. Lighter/heavier than air 2% Flammable- YES Detectible- can't be smelled or seen Dangerous- toxic to almost all life act over 50 parts per million.

[@adelynnikkadimaculangan294]

Pyrolysis and Stage of Burning Pyrolysis - thermal decomposition of combustible matters; chemical decomposition of a solid fuel through the action of heat. Process of Pyrolysis: •The fuel is heated until it's temperature reaches its fire point. If the fuel is already consumed, it will not produce vapor. It only means that the material and energy is already consumed. • Decomposition takes place - moisture in the fuel is converted to vapor. Combustible Vapors ( Free radicals) Pyrolysis - chemical process whereby fire consumes the most solid part of fuel. What are the stages of burning? >Incipient Phase- beginning stage of fire; includes preparation, started to produce fire. > Free Burning Phase - materials or structures are burning in the presence of adequate oxygen supply. > Smoldering Mode- burning stage where in the flame ceases but dense smoke and heat completely fill the confined roomm - flames may die and may leave only glowing inverse under pressure oxygen. Effects of Combustion products to the human body Smoke: • Irritates the respiratory act • Damage to the respiratory tract • abnormally stimulates tear glands • impaired vision • Causes excessive sneezing and coughing Fire Gases: • Cause death by asphyxia - Carbon monoxide ( dangerous) • Causes swelling of lungs - Carbon Dioxide - there are both colorless

[@doradojaspher798]

Pyrolysis - Thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat. Process of Pyrolysis: - The fuel is heated until its temperature reaches its fire point. -When the fuel is already consumed, it will not produce vapor, so it only means that the material is already consumed, the energy already consumed, thus it will not release vapor . -Decomposition takes place - moisture in the fuel is converted to vapor. -when it will continue to burn or it will continue to consumed the vapor, the result will be like charcoal. Pyrolysis -Chemical process whereby fire consumes the most solid part of the fuel. Stages of Burning Incipient Phase- beginning stage of fire, or the ignition (normal temperature). Thermal Updraft rise accumulate a higher point, 1000 Degree F. If the temperature is high as 1000 Degree F. there is enough oxygen to support the combustion and the ignition reach the firepoint, what we can see is the result of combustion now turning into product pyrolysis. Free Burning Phase - materials or structure are burning in the presence of adequate oxygen supply. - objects nearby are already affected or consumed this will become free burning phase. Smoldering mode - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. -We can only see light and smoke. Combustion products and their effects Effects of combustion products to human body: Smoke: - Irritates the respiratory tract - Damage to the respiratory tract - Abnormally stimulates tear glands - Impaired vision Cause excessive sneezing and coughing. Fire Gases - Causes death by ASPHYXIA - carbon monoxide - Causes swelling of the lungs - carbon dioxide Carbon dioxide - Combustion, breathing, decay of organic matter. -55% Heavier - Not flammable - Can smell at very high concentrations. - Only when it replaces almost all oxygen. Carbon Monoxide - Combustion when too little oxygen is available -2% lighter - Flammable - Can't be smelled or seen - Toxic to almost all life at over 50 parts per million.

[@ayalareav.3061]

📍 Pyrolysis • thermal decomposition of combustible matter chemical decomposition of a solid fuel through the action of heat • chemical process whereby fire consume the most solid part of fuel 📍 Process of pyrolysis ✓ The fuel is heated until its temperature reaches its fire point ✓ Decomposition takes place moisture in the fuel is slow converted to the vapor 📍Stages of burning ✓ Incipient phase • beginning stages of fire ✓ Free burning phase • materials or structures are burning in the presence of adequate oxygen supply 📍 Smoldering mode - burning stage where in flame ceases but then smoke and heat completely fill the fire confined room 📍Effects of combustion products to the human body smoke: ✓ irritates the respiratory tract ✓ damage the respiratory tract ✓ abnormally stimulates tear glands ✓ impaired vision ✓ cause excessive is sneezing and coughing 📍 Fire gases ✓ Cause death by asphyxia- carbon monoxide ✓ Causes swelling of the lungs- carbon monoxide * Carbon Dioxide ✓ combustion, breathing, decay of organic matter, 55 % heavier, not flammable, can smell at very high concentrations, it is dangerous when only when it replaces almost all oxygen *Carbon Monoxide ✓ combustion when too little oxygen is available, 2% heavier, it is flammable yet it cannot be seen, toxic to almost all life at over 50 parts per million

[@nuevodeanpatrickb.6789]

Pyrolysis and Stages of Burning Pyrolysis - thermal disposition of combustible matter; chemical the composition of a solid fuel through action of heat. Process of Pyrolysis • The fuel is heated until its temperature reaches its fire point. • Decomposition take place - moisture in the fuel is converted to vapor. Chemical process whereby fire consumes the most solid part of the fuel. What are the stages of burning? • Incipient Phase - beginning stage of fire, preparation and started of ignition Characteristics: 1. Normal temperature 2. Oxygen is plentiful 3. Thermal updraft raises accumulate higher point 4. Flame temperature 1000 degree Fahrenheit • Free burning phase - materials or structures are burning in the presence of adequate oxygen supply. Characteristics: 1. Fire has involved more fuel 2. Oxygen supply is depleted 3. Heat accumulates at upper area 4. Temperature: 800-1000 Fahrenheit base of fire, 1200-1600 Fahrenheit the ceiling • Smoldering Mode - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. No fire but their heat, light and smoke. Characteristics: 1. Oxygen drop to 13% or below 2. Flames may die and leave only glowing embers 3. Intense heat will vaporize 4. Oxygen deficiency may cause back draft Effects of combustion products to the human body: • Smoke- Irritates the respiratory tract, damage to the respiratory tract, abnormal stimulates tear glands, impaired vision, cause excessive sneezing and coughing • Fire gases 1. Causes death by ASPHYXIA - carbon monoxide 2. Causes swelling of the lungs - carbon dioxide Carbon dioxide Combustion, breathing, decay of organic matter, 55% heavier, no flame, it smell at very high concentration, dangerous only when it replaces almost all oxygen. Carbon monoxide Combustion when too little oxygen is available , 2% lighter, flammable, can't be smelled or seen, toxic to almost all fire and over 50 parts per million.

[@missionchristineantonette8928]

PROCESS OF PYROLYSIS: The fuel is heated until its temperature reaches its fire point. Decomposition takes place - moisture in the fuel is converted to vapor. Decomposition produces combustible vapors that rise to the surface of the fuel. Combustible vapors are technically termed as free radicals. Free radicals undergo combustion. FREE RADICALS- are combustible vapors such as: - Hydrogen Gas, Carbon Monoxide ,Carbon Dioxide , Nitrogen STAGES OF BURNING Incipient Phase - beginning stage of fire. Characteristics: - Normal room temperature , Oxygen plentiful ,.Thermal updraft rise accumulates at higher point,Flame Temperature of 1000 degree F. , The temperature at the base of the fire is 400-800oF , Ceiling temperature is about 2000F , Producing pyrolysis products: (CO2, CO, SO2. Water Vapor and other gases). Free Burning Phase - burning stage whereby materials or structures are burning in the presence of adequate oxygen supply. Characteristics: Fire has involved more fuel. Oxygen supply is depleted. Heat accumulates at upper area. Temperature: 800 - 1000 oF @ the base of fire 1200 - 1600oF @ the ceiling Accelerated pyrolytic processes take place. Development of convection current; formation of thermal column as heat rises. Pyrolytic decomposition moves upward on the walls (crawling of the flame) leaving burnt pattern (FIRE FINGERPRINTS).

[@delunaroxettes.855]

Pyrolysis and Stages of Burning Pyrolysis- thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat. Process of Pyrolysis -the fuel is heated until it's temperature reaches it's fire point. -decomposition takes place - moisture in the fuel is converted to vapor. *Chemical process whereby fire consumes the most solid part of the fuel. When the wood didn't produce vapor it will turn into charcoal. Stages of Burning •Incipient Phase - beginning stage of fire Characteristics: - Normal room temperature - Oxygen plentiful - Thermal updraft - Flame Temperature of 1000 degree F • Free Burning Phase- burning stage whereby materials or structures are burning in the presence of adequate oxygen supply. Characteristics: - Fire has involved more fuel - Oxygen supply is depleted - Heat accumulates at upper area - Temperature- 800-1000F @ the base of fire - 1200-1600F @ the ceiling • Smoldering Phase - burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. Characteristics: - Oxygen drops 13% or below - Flames may die and leave only glowing emblers - intense heat will vaporize - Oxygen deficiency may cause back draft Effects of Combustion products to human body: Smoke - Irritates the respiratory fact - Damage to the respiratory fact - Abnormally stimulates tear glands - Impaired vision - Cause excessive sneezing and coughing Fire Gases - Causes death by Asphyxia- carbon monoxide - Causes swelling of the lungs - carbon dioxide Carbon Dioxide - Combustion, breathing decay of organic matter -55% heavier - No it's not flammable - Can smell - Dangerous when it replaces almost all oxygen Carbon Monoxide - Combustion when too little oxygen is available - 2% lighter - Yes it's flammable - Can't smelled or seen - Toxic to almost all life at over 50 parts per million.

[@mhervilmagsino6933]

PYROLYSIS - thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat. -result or the effect when a combustible material is consumed by fire, it shows the pyrolysis. -chemical process whereby fire consumes the most solid part of the fuel. PROCESS OF PYROLYSIS: - the fuel is heated until its temperature reaches its fire point. - Decomposition takes place - moisture in the fuel is converted to vapor. - produces combustible vapors that rise to the surface of the fuel. * Combustible vapors are technically term as FREE RADICALS. STAGES OF BURNING: Incipient Phase - beginning stage of fire. Characteristics: -begins with a normal room temperature. -when the oxygen is plentiful -thermal updraft rise accumulates at higher point -flame temperature of 1000 degree F. -producing pyrolysis products (carbon and sulfur dioxide, carbon monoxide,water vapor and other gases) Free Burning Phase - materials or structures are burning in the presence of adequate oxygen supply. Characteristics: -fire has involved more fuel -oxygen supply is depleted -heat accumulates an upper area -temperature exceeds 1,300 degree F and area is fully involved. * Smoldering Mode - burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. Characteristics -flames may die and leave only glowing embers or superheated fuel under pressure with little oxygen. -intense heat will vaporize lighter fuel components such as hydrogen, methane, increasing the hazard. -temperature throughout the building is very high and normal breathing is not possible. EFFECTS OF COMBUSTION PRODUCTS TO THE HUMAN BODY SMOKE - Irritates the respiratory tract - Damage the respiratory tract - Abnormally stimulates tear glands - Impaired vision - Cause excessive sneezing and coughing FIRE GASES - Causes death by ASPHYXIA - carbon monoxide (more flammable,can’t be smelled or seen,toxic to almost all life at over 50 parts per million,colorless,more dangerous) - Causes swelling of the lungs - carbon dioxide (not flammable,detectable,its dangerous only when it replaces almost all oxygen,colorless)

[@joaquinresma4774]

3C4 *Pyrolysis - Thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat - Result or effect when a combustible material is burn or consume by the fire. Process of Pyrolysis The fuel is heated until its temperature reaches its fire point. Decomposition takes place-moisture in the fuel is converted to vapor. example of pyrolysis : Chemical process whereby fire consumes the most solid part of the fuel. Stages of burning Beginning stage of fire is Incipient Phase; Preparation and the time when started the spark or ignition that begin with normal temperature. Free Burning Phase - materials or structures are burning in the presence of adequate oxygen supply; the characteristics: fire has involve more fuel, oxygen supply deflated, heat accumulate upper area temperature exceeds more than 1000 degree Fahrenheit. Smoldering Mode - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room; the Characteristics: Flames may die and live only glowing inverse or super heating fuel under the pressure with little oxygen, intense heat will defer as lighter fuel components such as Hydrogen methane increasing the hazard and temperature through out the building is very high and now normal breathing is not possible. Combustion Products and their effects to the human body; *Smoke >irritates the respiratory tract >damage to the respiratory tract >abnormally stimulates tear glands >impaired vision >cause excessive sneezing and coughing *Fire Gases: >Causes death by asphyxia - carbon monoxide >Causes swelling of the lungs - carbon dioxide *Carbon Dioxide: >combustion breathing, decay of organic matter >55% heavier >no flame >can smell >dangerous when it replaces almost all oxygen *Carbon Monoxide: >combustion when too little oxygen is available >two lighter >its flammable >cant be seen or smell >toxic to almost all life at over 50 parts per million.

[@harveyescobido2587]

Pyrolysis •Thermal Decomposition of combustible matter . • Chemical Decomposition of a solid fuel through the action of heat.

[@conaalexandranicolee.8039]

*Pyrolysis: -thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat -chemical process whereby fire consumes the most solid part of the fuel Process of Pyrolysis: 1.The fuel is heated until its temperature reaches its fire point 2.Decomposition takes place-moisture in the fuel is converted to vapor Stages of Burning: A.Incipient Phase -beginning stage of fire Characteristics 1.Normal room temperature 2.Oxygen plentiful 3.Thermal updraft rise accumulates higher point 4.Flame temperature of 1000 degree F 5.Temperature at base of the fire is 400-800 degree F 6.Ceiling temperature is about 2000 F 7.Producing pyrolysis products B.Free Burning Phase -materials or structures are burning in the presence of adequate oxygen supply Characteristics 1.Fire involve more fuel 2.Oxygen supply is depleted 3.Heat accumulates at upper area 4.Temp.: 800-1000F at base fire/1200-1600F at the ceiling 5.Accelerated pyrolytic processes take place 6.Development of convection current 7.Pyrolytic decomposition moves upward on the walls 8.Occurrence of flash over 9. Area is fully involved C.Smoldering Phase -burning stage wherein flame cease but dense smoke and heat completely fill the confined room Characteristics 1.Oxygen drops at 13%, causing the flame to vanish 2.Flames may die and leave only glowing embers 3.Intense heat will vaporize lighter fuel 4.Products of incomplete combustion increase 5.Temperature throughout the building is very high and normal breathing is not possible 6.Oxygen deficiency may cause back draft Effects of combustion products to the human body: *Smoke -irritates the respiratory tract -damage to the respiratory tract -abnormally stimulates tear glands -impaired vision -cause excessive sneezing and coughing *Fire Gases: A.Causes death by asphyxia -carbon monoxide B.Causes swelling of the lungs -carbon dioxide Carbon Dioxide: -combustion breathing, decay of organic matter -55% heavier -no flame -can smell -dangerous when it replaces almost all oxygen Carbon Monoxide: -combustion when too little oxygen is available -2 lighter -its flammable -cant be seen or smell -toxic to almost all life at over 50 parts per million

[@dechavezfrederick2402]

PYROLYSIS AND STAGES OF BURNING PYROLYSIS - the fire consumes the most solid part of the fuel. - thermal decomposition of combustible material. - chemical decomposition of a solid fuel through the action of heat. - is the result or the effect when a burning material is consumed by the fire. PROCESS OF PYROLYSIS 1. The fuel is heated until its temperature reaches its fire point. 2. Decomposition take place- moisture in the fuel is converted to vapor. 3. Decomposition produced combustible be a force that rise to the surface of the fuel. 4. Free radicals undergo combustion. STAGES OF BURNING 1. INCIPIENT PHASE- beginning stage of fire, includes preparation. Characteristics: 1. Normal room temperature. 2. Oxygen plentiful 3. Flame temperature of 1000 degree fahrenheit. 4. The temperature at the base of the fire is 400 to 800 degree fahrenheit. 5. Ceiling temperature is about 2000 fahrenheit. 2. FREE BURNING PHASE- materials or structures are burning in the presence of adequate oxygen supply. Characteristics: 1. Fire has involved more fuel. 2. Oxygen supply is depleted. 3. Temperature at the base of far is 800 to 1,000 degrees fahrenheit. 4. Temperature at the ceiling is 1,200 to 1600 degree fahrenheit Effects of combustion products to the human body. SMOKE *Irritates the respiratory tract *Damage to the respiratory tract *Abnormally is stimulates tear glands *Impaired vision *Cause excessive sneezing and coughing. FIRE GASES *CAUSES DEATH BY ASPHYXIA- carbon monoxide *CAUSES SWELLING OF THE LUNGS-carbon dioxide. DISTINCTION BETWEEN CARBON DIOXIDE AND CARBON MONOXIDE. CARBON DIOXIDE PRODUCED BY- combustion breathing decay of organic matter LIGHTER OR HEAVIER THAN AIR- 55% heavier. FLAMMABLE- No DETECTABLE- can't smell at very high concentration. DANGEROUS- only when it replaces almost all oxygen. CARBON MONOXIDE PRODUCED BY- combustion when two little oxygen is available. LIGHTER OR HEAVIER THAN AIR- 2% lighter. FLAMMABLE- yes DETECTABLE- can be seen or smelled DANGEROUS- toxic to to almost all life at over 50 parts per million. CARBON MONOXIDE AND CARBON DIOXIDE- both are colorless.

[@paciahannamiracles.8280]

Pyrolysis and stage of burning -Pyrolysis, thermal decomposition of combustible matter through the action of heat. Process of Pyrolysis -the fuel is heated until its temperature reaches the fire point -Decomposition, fuel is converted to vapor -Chemical process, consume the most solid part of the fuel. What are the stage of burning 1. Incipient phase, beginning stage of fire 2. Free burning phase, what do you are burning in the presence of adequate oxygen Smoldering mode -burning stegosaur and flame ceases but dense smoke and heat that completely filled around. Combustant products in there effect to the human 1. Irritate the respiratory track 2. Damage the respiratory track 3. Abnormally simultaneous stimulates tear glands 4. Impaired vision 5. So successive nation and coughing. Fire gases Cause by death by asphyxia- Carbon monoxide Causes swelling of the lungs- Carbon dioxide

[@dipasupilaianadonih.7181]

pyrolysis- deformation of solid fuel through the action of heat the processof pyrolysis where the fuel is heated until it reach the fire point and decomposition of fuel take place when it is converted to vapor stages of Burning Incipient phase- the burning where it is in the begginging of fire and have normal temperature free burning phase- the burning wherein it is supplied adequate oxygen smoldering phase- flame ceases bute dense smoke and the heat fill in the room carbon monoxide is dangerrous because of its toxic chemical

[@bumagatchelsead.5748]

PROCESS OF PYROLYSIS 1. The fuel is heated until its temperature reaches its fire point. 2. Decomposition takes place- moisture in the fuel is converted to vapor. What are the stages of burning? A. Incipient Phase- Beginning stage of fire B. Free Burning Phase- materials/ structures are burning in the presence of adequate oxygen supply. C. Smoldering Mode- Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. COMBUSTION PRODUCTS AND THEIR EFFECTS *EFFECTS OF COMBUSTION PRODUCTS TO THE HUMAN BODY: 1. Smoke -Irritates the respiratory tract -damage to the respiratory tract -Abnormally stimulates tear glands -Impaired vision -Cause excessive sneezing and coughing FIRE GASES 2. Causes death by Asphyxia-carbon monoxide 3.Causes swelling of the lungs-carbon dioxide

[@camelleleysa18]

Pyrolysis and the stages of burning Pyrolysis - result of burning materials - thermal decomposition of combustible matter; - decomposition of a solid fuel through the action of heat - Result or effect when a burning material is burned or when combustible material is consumed by the fire Process of Pyrolysis (1) Fuel is heated until its temperature reaches its fire point (2) Decomposition take place - fuel is converted to vapor *Vapor is the one that is being burned and not the material Stage of Burning * Incipient Phase - beginning stage of fire - preparation and started to ignition - burning the piece of wood * Characteristics - Normal room temperature - Oxygen plentiful - Thermal updraft - Flame temperature 1000 degree F. * Free Burning Phase - burning in the presence of adequate oxygen supply - consumed the other object * Characteristics - Fire has involved more fuel - Oxygen supply is depleted - Heat accumulates at upper area - Temperature 800-1000 F base of fire, 1300 1600 F the ceiling *Chemical process whereby fire consumes the most solid part of the fuel. When the wood didn't produce vapor it will turn on into charcoal because the vapor is already consumed. * Smoldering Phase - burning stage wherein flame ceases - no fire but there heat, light and smoke - fuels are already consumed * Characteristics - Oxygen drop to 13% below - Flames may die and leave only glowing embers - Intense heat will vaporize - Oxygen deficiency may cause back draft. Effects of Combustion products to human body * Smoke - Irritates the respiratory tract - Damage the respiratory tract - Abnormally stimulates tear glands - Impaired vision - Cause excessive sneezing and coughing * Fire Gases - Causes death by Asphyxia carbon monoxide - Causes swelling of the lungs carbon dioxide * Carbon Dioxide - Combustion breathing, decay of organic matter - 55% heavier - No flame - Can smell - Dangerous when it replaces almost all oxygen * Carbon Monoxide - Combustion when too little oxygen is available - 2% lighter - Its flammable - Can’t be seen or smell - Toxic to almost all life at over 50 parts per million

[@bitevinricane4227]

PYROLYSIS AND STAGES OF BURNING •Thermal decomposition of combustible matter; Chemical decomposition of an solid fuel through the action of heat. -It is the result or the effect when burning material or when a material is burned or when combustible material is consumed by the fire it creates or show up the pyrolysis. PROCESS OF PYROLYSIS • The fuel is heated until its temperature reaches its fire point. -When the fuel are already consumed it will not produce vapor -Material is already consumed, it will not produces vapor • Decomposition takes place-Moisture in the fuel is converted to vapor. -Decomposition produces combustible vapors that rise to the surface of the fuel PYROLYSIS-Chemical process whereby fire consumes the most solid part of the fuel What are the stages of burning? 1. INCIPIENT PHASE- Beginning stage of fire Includes the preparations Includes start to spark or ignition -The characteristics of incipient phase are the following: Normal room temperature, make something to produce or cause to increase the temperaturem -When the oxygen is plentiful(Outside the room) then thermal up drop rise accumulates a higher point when there is possibility that you can produce and can increase the temperature and room temperature to 1000 degree F. 2. FREE BURNING PHASE- Materials of structures are burning in the presence of adequare oxygen supply Characteristics: Fire has involved more fuel, oxygen supply is deplated, heat accumulates at upper area, temperarture excedd more than what is mentioned in incipient phase (1000 degree F) It will become (1300 degree F) and area is fully involved 3. SMOLDERING MODE- Fuel is already consumed -Burniny stage wherein flame increades but dense smoke and heat completely fill yhe confined roomm -Light and heat exist but fire is increases Characteristics: Flames may die and leave only glowing embers or intense heat will vaporized the hazard and temperature throughout the glowing and its very high and normal breathing is not possible. -There is oxygen deficiency COMBUSTION PRODUCT AND THEIR EFFECTS Effects of combustion products to the human body SMOKE -Irritates the respiratory tract -Damage the respiratory tract -Abnormally stimulates tear glands -Impaired Vision -Cause excessive sneezing and coughing FIRE GASES -Causes death by ASPHYXIA-Carbon Monoxide -Causes swelling of the lungs-Carbon dioxide

[@kaligayahanzyreng5998]

PYROLYSIS - Thermal decomposition of combustible matter: chemical decomposition of a solid fuel through the action of heat PROCESS OF PYROLYSIS: 1. Fuel is heated until its temp. Reaches its fire point 2. Decomposition takes place-moisture in the fuel is converted to vapor 3. Decomposition produces combustible vapor that rise to the surface of the fuel Stages of Burning Incipient Phase-beginning stage of fire Characteristics: 1. Normal room temperature or normal temperature 2.oxygen plentiful 3. Thermal updraft rise at higher points 4. Flame temp. Of 1000°f 5. Temp. Are base of the fire is 400-800" 6. celling temp. Is about 200°f 7. Producing pyrolysis products Free burning phase- materials or structures are burning in the presence of adequate oxygen supply Smoldering mode burning stage wherein flame ceases but dense smoke and heat completely fill the confined room Effects of combustion products to the human body: Smoke: -irritates the respiratory tract -damage to respiratory tract -abnormally stimulates tear glands -Impaired vision -cause excessive sneezing and coughing Fire gases: -causes death by ASPHYXIA-carbon monoxide -causes swelling of the lungs-carbon dioxide Carbon dioxide -produced by combustion, breathing, decay of organic matter -55% heavler -It is not flammable -Detectable? Can be smell at very high concentrations -Dangerous? Only when it replaces almost all oxygen Carbon monoxide -produced by combustion, when too little oxygen is available -2% lighter -flammable? Yes -Detectable? Can't be smelled or seen -Dangerous? Toxic to almost all life at over 50 parts per million Both are colorless

[@ilaganbettymaer.6385]

Pyrolysis and Stages of Burning Pyrolysis - thermal disposition of combustible matter; chemical the composition of a solid fuel through action of heat. Process of Pyrolysis • The fuel is heated until its temperature reaches its fire point NOTE: vapor is one being burned not the material • Decomposition take place - moisture in the fuel is converted to vapor. Chemical process whereby fire consumes the most solid part of the fuel. What are the stages of burning? • Incipient Phase - beginning stage of fire, preparation and started of ignition Characteristics: - Normal temperature - Oxygen is plentiful - Thermal updraft raises accumulate higher point - Flame temperature 1000 degree Fahrenheit • Free burning phase - materials or structures are burning in the presence of adequate oxygen supply. Characteristics: - Fire has involved more fuel - Oxygen supply is depleted - Heat accumulates at upper area - Temperature: 800-1000 Fahrenheit base of fire, 1200-1600 Fahrenheit the ceiling • Smoldering Mode - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. No fire but their heat, light and smoke. Characteristics: - Oxygen drop to 13% or below - Flames may die and leave only glowing embers - Intense heat will vaporize - Oxygen deficiency may cause back draft Effects of combustion products to the human body: • Smoke - Irritates the respiratory tract - Damage to the respiratory tract - Abnormal stimulates tear glands - Impaired vision - Cause excessive sneezing and coughing • Fire gases - Causes death by ASPHYXIA - carbon monoxide - Causes swelling of the lungs - carbon dioxide Carbon dioxide - Combustion, breathing, decay of organic matter - 55% heavier - No flame - Can smell at very high concentration - It’s dangerous only when it replaces almost all oxygen Carbon monoxide - Combustion when too little oxygen is available - 2% lighter - Flammable - Can't be smelled or seen - Toxic to almost all fire and over 50 parts per million

[@orpelaangelicat.3980]

•Pyrolysis and the stages of burning Pyrolysis - result of burning materials -thermal decomposition of combustible matter; -decomposition of a solid fuel through the action of heat - Result or effect when a burning material is burned or when combustible material is consumed by the fire •Process of Pyrolysis 1. Fuel is heated until its temperature reaches its fire point 2. Decomposition take place - fuel is converted to vapor Vapor is the one that is being burned and not the material •Stage of Burning ▪︎Incipient Phase - beginning stage of fire -preparation and started to ignition -burning the piece of wood •Characteristics -Normal room temperature -Oxygen plentiful -Thermal updraft -Flame temperature 1000 degree F. •Free Burning Phase - burning in the presence of adequate oxygen supply -consumed the other object •Characteristics -Fire has involved more fuel -Oxygen supply is depleted -Heat accumulates at upper area Temperature 800-1000 F base of fire, 1300 1600 F the ceiling •Chemical process whereby fire consumes the most solid part of the fuel. When the wood didn't produce vapor it will turn on into charcoal because the vapor is already consumed. •Smoldering Phase - burning stage wherein flame ceases -no fire but there heat, light and smoke -fuels are already consumed •Characteristics -Oxygen drop to 13% below -Flames may die and leave only glowing embers -Intense heat will vaporize -Oxygen deficiency may cause back draft. •Effects of Combustion products to human body ▪︎Smoke -Irritates the respiratory tract -Damage the respiratory tract -Abnormally stimulates tear glands -Impaired vision -Cause excessive sneezing and coughing •Fire Gases Causes death by Asphyxia carbon monoxide Causes swelling of the lungs carbon dioxide •Carbon Dioxide -Combustion breathing, decay of organic matter -55% heavier -No flame -Can smell -Dangerous when it replaces almost all oxygen •Carbon Monoxide -Combustion when too little oxygen is available -2% lighter -Its flammable -Can’t be seen or smell -Toxic to almost all life at over 50 parts per million

[@rumblevideo14]

Pyrolysis -thermal decomposition of combustible matter chemical decomposition of a solid fuel through the action of heat Process of pyrolysis The fuel is heated until its temperature reaches its fire point Decomposition takes place moisture in the fuel is slow converted to the vapor Pyrolysis -chemical process whereby fire consume the most solid part of fuel Stages of burning Incipient phase-beginning stages of fire Free burning phase- materials or structures are burning in the presence of adequate oxygen supply Smoldering mode-burning stage where in flame ceases but then smoke and heat completely fill the fire confines room Combustion products and their effects Effects of combustion products to the human body smoke

[@hilaerikaaira869]

PYROLYSIS AND STAGE OF BURNING PYROLYSIS - thermal decomposition of combustible matter, effect when a burning material are went is a material is comsumed by the fire it will show up pyrolysis PROCESS OF PYROLYSIS: 1. The fuel is heated until its temperature reaches its fire point 2. Decomposition takes place 3. Combustible vapors are technically termed as free radicals 4. Free radicals undergo combustion STAGE OF BURNING: INCIPIENT PHASE- beginning stage of fire, preparation started to produced spark or ignition FREE BURNING PHASE- consumed or burned the other object SMOLDERING PHASE - fuel are already consumed wherein flame ceases but dense smoke and heat completely fill the confined room. CAUSE DEATH BY ASPHYXIA - carbon monoxide CAUSES SWELLING OF THE LUNGS- carbon dioxide HILA, ERIKA AIRA A 3C4

[@kheilsymonj.alonzo2490]

PYROLYSIS - is a thermal decomposition of combustible matter. - it is a chemical decomposition of solid fuel through the action of heat. (PROCESS OF PYROLYSIS) - The fuel is heated until its temperature reaches its fire point. - Decomposition takes place when the moisture in the fuel is converted to vapor. - Chemical process whereby fire consumes the most solid part of the fuel. (STAGES OF BURNING) - INCIPIENT PHASE - it is the beginning stage of burning. - FREE BURNING PHASE - materials or structures are burning in the presence of adequate oxygen supply. - SMOLDERING MODE - burning is stage wherein flame ceases but dense smoke and heat completely filled the confined room. (EFFECTS OF CUMBUSTION PROUDCTS TO THE HUMAN BODY.) (SMOKE) - Irritates the respiratory tract. - Damage to the respiratory tract. - Abnormally simulate tear glands. - Impaired vision. - Excessive sneezing and coughing. (FIRE GASES) -CARBON DIOXIDE - causes swelling of lungs. -Produced by combustion, decay of organic matter. -55% heavier than air. -Not flammable. -Can be smelled at very high concentration. -Dangerous when replaces almost all oxygen. -CARBON MONOXIDE - causes death by asphyxia. -Produced by combustion when too little oxygen is available. -2% lighter than air. -Flammable. -Cannot be seen or smelled. -Toxic at almost all life at over 50 parts per million. -Both colorless

[@umalironalisa6309]

⚫PYROLYSIS -Thermal decomposition of combustible matter; Chemical decomposition of a solid fu3l through the action of heat. ( It is the result or effect at when a burning material is burned or whem thecombustible material is consumed by the fire it creates or it will show up the pyrolysis). •PROCESS OF PYROLYSIS -The fuel is heated until its temperature reaches its fire point. ( When the energy fuel is already consumed, it will not already produced vapor). - Decomposition takes palce moisture in the fuel is converted to vapor. ( Produces combustible vapors that raise to the suface of the fuel the radicals undergocombustion vapors are technically termed as free radicals). - Chemical process whereby fire consumes the most solid part of fuel. ( Ex. Wood tjat contained with fuel when the wood is exposed to heat, then when there is already fire consumes the vapor wood already vapor is no longer produce vapor it becomes like a charcoal ). -REACTION OF EXOTHERMIC ⚫WHAT ARE THE STAGES BURNING? • INCIPIENT PHASE -Beginning stage of fire ( It includes the preparation and when a time that started to produce a spark or ignitionthe characteristic of inicipient phase the following normal, it begins with the normal temperature that is not necessary). • FREE BURNING PHASE -Materials or structure are burning in the presence of adequate oxygen supply. ( Characteristics of fire has involved more fuel oxygen supply is defined heat accumulates at upper area temperature exceeds more than in the incipient stage. Ex. Piece of wood and then stay already consumed the other objects, it start from 1000°F when it already reaches the sufficient degree of a flash point. They find that there is already increasing of temperature). ⚫SMOLDERING MODE -Burning stage wherein flame ceases but dense smoke and heat completely fill confined room. ( This stage only can see the light and as well as the heat/smoke, because, there is no more flame or the flame is ceasing. Characteristic of this smoldering mode, flames may leave only glowing inverse or superheated fuel under the pressure with little oxygen). ⚫COMBUSTION PRODUCTS AND THEIR EFFECTS • EFFECTS OF COMBUSTION PRODUCT TO THE HUMAN BODY •SMOKE -irritates the respiratory tract - Damage to respiratory tract - Abnormally stimulates tear glands - Impaired vision CAUSE EXCESSIVE SNEEZING AND COUGHING • FIRE GASES °CAUSES DEATH ASPHYXIA - CARBON MONOXIDE °CAUSES SWELLING OF THE LUNGS- CARBON DIOXIDE ⚫CARBON DIOXIDE * Combustion breathing decay of organic matter (PRODUCED BY) *55% heavier( LIGHTER/HEAVIER THAN AIR) *No( FLAMMMABLE) *Can smell at very high concentrations( DETACHABLE) *Only when it replaces almost all oxygen( DANGEROUS) ⚫CARBON MONOXIDE *Combustion when too little oxygen is available( PRODUCED BY) *2% lighter( LIGHTER/HEAVIER THAN AIR) *YES( FLAMMABLE) *Can't be smelled or seen( DETACHABLE) *Toxic to almost all fire at over 50 parts per million( MOST DANGEROUS)

[@patrickbulahan7699]

PYROLYSIS - result of burning material - decomposition of solid fuel through the action of heat. PROCESS OF PYROLYSIS 1. You will is heated until its temperature reaches its fire point. 2. Decomposition takes place 3. You will converted to vapor. STAGE OF BURNING •Incipient Phase - beginning stage of fire. Characteristics: * Normal room temperature * Oxygen is plentiful * Thermal Updraft * 1000 degree Fahrenheit • Free Burning Phase - burning in the presence of adequate oxygen supply. Characteristics: * Fire has involve more fuel * Oxygen supply is depleted * Heat accumulated upper area * 1300 degree Fahrenheit • Smoldering Phase -burning stage where in flame cease. - not fire but there is a light and heat. - fuels are already consumed. Characteristics: * Fire may die and live only inverse * Intensate vaporized lighter fuel * There is oxygen deficiency EFFECT OF CONVERSION PRODUCT TO HUMAN BODY •Smoke - irritates the respiratory tract - damage to the respiratory tract - Abnormal stimulates tear glands - impaired vision •Fire Gases - causes death by ASPHYXIA --- Carbon Monoxide - causes swelling for the lungs --- Carbon Dioxide • Carbon Dioxide - combustion breathing, decay of organic matter. -55%hevier - no flame - can smell - dangerous when replace almost all oxygen. Carbon Monoxide -combustion when to little oxygen is available -2 % lighter -flamable - can be seen or smell - toxic to almost all life

[@fandinohenrichrafaelb.2516]

*PYROLYSIS- thermal decomposition of combustile matter. - chemical decomposition of a solid fuel through the action of heat. - chemical process whereby fire consumes the most solid part of the fuel. *PROCESS OF PYROLYSIS • Fuel is heated until its temperature reaches its fire point. • Decomposition takes place- moisture in the fuel is converted to vapor. *STAGES OF BURNING • Incipient Phase- beginning stage of fire • Free Burning Phase- materials or structures are burning in the presence of adequate oxygen supply. • Smoldering mode- stage wherein flame ceases but dense smoke and heat completely fill the confined room. *COMBUSTION PRODUCTS AND THEIR EFFECTS • Effect of combustion products to the human body *SMOKE - irritates the respiratory tract - damage to the respiratory tract - abnormally stimulates tear glands - impaired vision - cause exessive sneezing and coughing *FIRE GASES • Causes death by ASPHYXIA- carbon monoxide • Causes swelling of the lungs- carbon dioxide.

[@vergarajohncarlo7551]

PYROLYSIS -Thermal decomposition of combustible matter ;chemical decomposition solid fuel through the action of heat. PROCESS OF PYROLYSIS : > The fuel is heated until its temperature reaches its fire point. > Decomposition takes place - moisture in the fuel is converted to vapor. THE STAGES OF BURNING INCIPIENT PHASE - beginning stage of fire. - begins with the normal temperature. - thermal updraft rise at higher points. FREE BURNING PHASE - materials or structures are burning in the presence of adequate oxygen supply. - consume the other objects. SMOLDERING MODE - burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. EFFECTS OF COMBUSTION PRODUCTS TO THE HUMAN BODY SMOKE * Irritates the respiratory tract * Damage to the respiratory tract * Abnormally stimulates tear glands * Impaired vision * Cause excessive sneezing and coughing FIRE GASSES * CAUSES DEATH BY ASPHYXIA - carbon monoxide * CAUSES SWELLING OF THE LUNGS - carbon dioxide CARBON DIOXIDE - combustion breathing decay of organic matter - 55% heavier - its not flammable - can smell at very high concentrations - only when it replaces almost all oxygen CARBON MONOXIDE - combustion when too little oxygen is available - 2% lighter - Yes it's flammable - can't be seen or smell - toxic to almost all life at over 50 parts per million BOTH ARE COLORLESS

[@eugerionecilyna.9688]

Pyrolysis and Stage of Burning Pyrolysis - thermal decomposition of combustible matters; chemical decomposition of a solid fuel through the action of heat. Process of Pyrolysis: -The fuel is heated until it's temperature reaches its fire point. If the fuel is already consumed, it will not produce vapor. It only means that the material and energy is already consumed. -Decomposition takes place - moisture in the fuel is converted to vapor. Combustible Vapors ( Free radicals) -Pyrolysis - chemical process whereby fire consumes the most solid part of fuel. What are the stages of burning? Incipient Phase - beginning stage of fire; includes preparation, started to produce fire. Free Burning Phase - materials or structures are burning in the presence of adequate oxygen supply. Smoldering Mode - burning stage where in the flame ceases but dense smoke and heat completely fill the confined room *Flames may die and may leave only glowing inverse under pressure oxygen. Effects of Combustion products to the human body Smoke: • Irritates the respiratory act • Damage to the respiratory tract • abnormally stimulates tear glands • impaired vision • Causes excessive sneezing and coughing Fire Gases: • Cause death by asphyxia - Carbon monoxide ( dangerous) • Causes swelling of lungs - Carbon Dioxide - there are both colorless

[@abuelabbygails.1390]

Pyrolysis and Stage of Burning *Pyrolysis- thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat. -Result when combustible material is consumed by the fire. -Ignitable mixture of burnable gases and air. Process of Pyrolysis -The fuel is heated until its temperature reaches its fire point. -When the fuel is already consumed it will not already produce vapor. -The materials energy already consumed but not produce vapor. *Decomposition takes place moisture in the fuel is converted to vapor. *Chemical process whereby fire consumes the most solid part of the fuel. Stages of Burning 1. Incipient Phase- beginning stage of fire. -Includes the preparation, time started to produce fire or ignition. 2. Fire Burning Phase- materials or structures are burning in the presence of adequate oxygen supply. 3.Smoldering Mode- burning stage when flame ceases but dense smoke amd heat completely fill the confined room. - Fuels are already consumed -Light and smoke *Glowing imberse or super heated fuel under pressure with little oxygen *Intense heat will vaporize lighter fuel components such as hydrogen, metane increasing the hazard and temperature. *Oxygen deficiency. Effects of combustion products to the human body: Smoke -Irritates the respiratory tract -Damage to the respiratory tract -Abnormally stimulates tear glands -Impaired vision -Cause excessive sneezing and coughing Fire Gases *Causes death by Asphyxia- carbon monoxide *Causes swelling of the lungs- carbon doixide. Carbon dioxide *Produced by- combustion, breathing, decay of organic matter *Lighter/Heavier than air- 55% heavier *Flammable- no *Detectable- can smell of very high concentrations *Dangerous- only when it replaces almost all oxygen Carbon Monoxide *Produced by- combustion when two little oxygen is available *Lighter/Heavier than air- 2% lighter *Flammable- yes *Detectable- can't be smelled or seen *Dangerous- toxic to almost all life at over 50 parts per million

[@barletabeaprincess8244]

📌 PYROLYSIS - the fire consumes the most solid part of the fuel. - thermal decomposition of combustible material. - chemical decomposition of a solid fuel through the action of heat. - is the result or the effect when a burning material is consumed by the fire. 📌 PROCESS OF PYROLYSIS 1. The fuel is heated until its temperature reaches its fire point. 2. Decomposition take place- moisture in the fuel is converted to vapor. 3. Decomposition produced combustible be a force that rise to the surface of the fuel. 4. Free radicals undergo combustion. 📌 STAGES OF BURNING 1. INCIPIENT PHASE- beginning stage of fire, includes preparation. Characteristics: 1. Normal room temperature. 2. Oxygen plentiful 3. Flame temperature of 1000 degree fahrenheit. 4. The temperature at the base of the fire is 400 to 800 degree fahrenheit. 5. Ceiling temperature is about 2000 fahrenheit. 2. FREE BURNING PHASE- materials or structures are burning in the presence of adequate oxygen supply. Characteristics: 1. Fire has involved more fuel. 2. Oxygen supply is depleted. 3. Temperature at the base of far is 800 to 1,000 degrees fahrenheit. 4. Temperature at the ceiling is 1,200 to 1600 degree fahrenheit Effects of combustion products to the human body. SMOKE *Irritates the respiratory tract *Damage to the respiratory tract *Abnormally is stimulates tear glands *Impaired vision *Cause excessive sneezing and coughing. FIRE GASES *CAUSES DEATH BY ASPHYXIA- carbon monoxide *CAUSES SWELLING OF THE LUNGS-carbon dioxide. 📌 DISTINCTION BETWEEN CARBON DIOXIDE AND CARBON MONOXIDE. 📍CARBON DIOXIDE PRODUCED BY- combustion breathing decay of organic matter LIGHTER OR HEAVIER THAN AIR- 55% heavier. FLAMMABLE- No DETECTABLE- can't smell at very high concentration. DANGEROUS- only when it replaces almost all oxygen. 📍 CARBON MONOXIDE PRODUCED BY- combustion when two little oxygen is available. LIGHTER OR HEAVIER THAN AIR- 2% lighter. FLAMMABLE- yes DETECTABLE- can be seen or smelled DANGEROUS- toxic to to almost all life at over 50 parts per million. CARBON MONOXIDE AND CARBON DIOXIDE- both are colorless 📌 SMOLDERING PHASE CHARACTERISTICS: 1. Oxygen drops to 13% bellow causing the flame. 2. Flames may die and leave only glowing embers 3. Intense heat will baper eyes lighter fluid components 4. Products of incomplete combustion increase particularly carbon monoxide.

[@marasigangiesellea.1782]

Pyrolysis and Stages Burning: *Pyrolysis- thermal decomposition of combustible matter, chemical decomposition of a solid fuel through the action of heat. *Process of Pyrolysis: -the fuel is heated until its temperature reaches its fire point. -when the energy is already consumed the fuel will not already produce vapor. -it only happened when it reaches the fire point. - Decomposition takes place. *Pyrolysis- chemical process whereby fire consumes the most solid part of the fuel. *What are the stages of burning? >Incipient Phase- beginning stages of fire. *Characteristics of Incipient Phase: -it begins with the normal room temperature. -when the oxygen is plentiful. *Free Burning Phase - materials or structures are burning in the presence of adequate oxygen supply. *Characteristics: -fire has involved more fuel. - oxygen supplies are depleted. -heat accumulates at upper area -temperature exceeds.\ *Smoldering Mode- burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. *Characteristics: -flames may die and live only glowing inverse or super heated fuel under the pressure with little oxygen. -intense heat will vaporize lighter fuel components - cannot breath normally. *Effects of combustion products to the human body: >Smoke- difficult to breath -irritates the respiratory tract -damage to the respiratory tract -abnormally stimulates tear glands- -impaired vision -cause excessive sneezing and coughing *Fire Gases: -causes death by Asphyxia-carbon monoxide -causes swelling of the lungs - carbon dioxide *Distinction between carbon monoxide and carbon dioxide. -Carbon dioxide-is not flammable than the carbon monoxide. -Carbon monoxide- more flammable than the carbon dioxide *How dangerous the two? -Carbon dioxide- only when it replaces almost all oxygen. -Carbon monoxide- toxic to almost all fire to over 50 parts per million. *Both are colorless and at high concentration. - both can still be deadly however carbon monoxide are more dangerous. Pyrolysis and Stages Burning: *Pyrolysis- thermal decomposition of combustible matter, chemical decomposition of a solid fuel through the action of heat. *Process of Pyrolysis: -the fuel is heated until its temperature reaches its fire point. -when the energy is already consumed the fuel will not already produce vapor. -it only happened when it reaches the fire point. - Decomposition takes place. *Pyrolysis- chemical process whereby fire consumes the most solid part of the fuel. *What are the stages of burning? >Incipient Phase- beginning stages of fire. *Characteristics of incipient phase: -it begins with the normal room temperature -when oxygen is plentiful. *Free Burning Phase- materials or structures are burning in the presence of adequate oxygen supply. *Characteristics: -fire has involved more fuel -oxygen supplies are depleted -heat accumulates at upper area -temperature exceeds *Smoldering Mode- burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. *Characteristics: -flames may die and live only glowing inverse or super heated fuel under the pressure with little oxygen. -cannot breath normally. *Effects of combustion products to the human body: *Smoke- difficult to breath -irritates the respiratory tract -damage to the respiratory tract -abnormally stimulates tear glands -impaired vision -cause excessive sneezing and coughing *Fire Gases: -causes death by Asphyxia- carbon monoxide -causes swelling of the lungs- carbon dioxide *Distinction between carbon monoxide and carbon dioxide: Carbon dioxide- not flammable than the carbon monoxide. Carbon monoxide- more flammable than the carbon dioxide. *How dangerous the two? Carbon dioxide-only when it replaces almost all oxygen. Carbon monoxide- toxic to almost all fire to over 50 parts per million. *Both are colorless and at high concentration . -both can still be deadly.

[@marananglendesireec.7294]

PYROLYSIS AND STAGE OF BURNING □PYROLYSIS- thermal decomposition of combustible matter. Chemical decomposition of a solid fuel through the action of heat. PROCESS OF PYROLYSIS •The fuel is heated until its temperature reaches its fire point. When the energy is already consumed the fuel it will not already produce vapor. •Decomposition takes place-moisture in the fuel is converted to vapor. Example of PYROLYSIS -Chemical process whereby fire consumes the most solid part of the fuel. STAGES OF BURNING > Incipient Phase - beginning stage of fire. > Free Burning Phase - materials or structures are burning in the presence of adequate oxygen supply. SMOLDERING MODE -Flame Cases . dense smoke and heat completely fill the confined room. COMBUSTION PRODUCTS AND THEIR EFFECTS • Effects of combustion products to the human body: - Smoke Difficult to breath Damage the respiratory tract Impaired vision Abnormally stimulates tear glands FIRE GASES >Causes death by ASHYPIA-carbon monoxide NOT FLAMMABLE >Causes swelling of the lungs- carbon dioxide FLAMMABLE

[@karlbernardbelen5167]

PYROLYSIS AND STAGES OF BURNING *Pyrolysis - Thermal Decomposition of Combustible matter. - Chemical Decomposition of a solid fuel through heat. - Chemical process where fire consumes the most sold part of the fuel *PROCESS OF PYROLYSIS - fuel reaches fire point. - decomposition takes place. Moisture in the fuel is converted to vapor. *STAGES OF BURNING •Incipient Phase - beginning stage of fire. *Characteristics - normal temperature - plentiful oxygen - producing pyrolysis products •Free Burning Phase - Materials/Structures burn in adequate oxygen supply. *Characteristics - fire involve more fuel - oxygen supply depleted - heat accumulates at upper areas - temperature exceeds incipient phase - area is fully involved •Smoldering Mode- burning stage wherein flame ceases. Dense smoke and heat completely fill the room. *Characteristics - flames die leaving only glowing embers or superheated fuel under the pressure with little oxygen - intense heat - temperature very high - normal breathing not possible COMBUSTION PRODUCTS AND THEIR EFFECTS •SMOKE - irritate respiratory tract - damage the respiratory tract - abnormally stimulates tear glands - impaired vision - cause excessive sneezing and coughing FIRE GASES •Carbon Monoxide - causes death by ASPHYXIA - flammable - lighter - can't be smelled or seen - toxic to almost all life at over 50 parts per million •Carbon Dioxide - causes swelling of lungs - heavier - not flammable - can smell at very high concentrations - only dangerous when it replace almost all oxygen

[@urrerama.antoinettf.1145]

Pyrolysis and Stages of Burning Key Notes Pyrolysis - thermal decomposition of combustible matter; - the fire consumes the most solid part of the fuel. Process of Pyrolysis: *Fuel is heated until its temperature reaches its fire point *Decomposition takes place - moisture in the fuel is converted to vapor. *Free radicals undergo combustion. FREE RADICALS are combustible vapor (ex. hydrogen gas, carbon monoxide, carbon dioxide, nitrogen) STAGES OF BURNING 1) INCIPIENT PHASE- beginning stage of fire 2) FREE BURNING PHASE- materials or structures are burning in the presence of adequate oxygen supply. 3) SMOLDERING MODE- flame ceases but dense smoke and heat completely fill the confined room. Effects of combustion products to the human body. =SMOKE= -Irritates the respiratory tract -Damage to the respiratory tract -Abnormally stimulates tear glands -Impaired vision -Cause excessive sneezing and coughing. FIRE GASES Death by asphyxia- carbon monoxide Swelling of the lungs -carbon dioxide. CARBON DIOXIDE Flammable- NO Produced by combustion, breathing, decay of organic matter. Lighter/heavier than air- 55% heavier Detectable- can smell at very high concentration Dangerous- only when it replaces almost all oxygen CARBON MONOXIDE Flammable- YES Produced by- combustion when too little oxygen is available. Lighter/heavier than air- 2% lighter Detectable- can't be smelled or seen Dangerous- toxic almost all life

[@demesajhonalvinm.3906]

Pyrolysis -thermal decomposition of combustible matter chemical decomposition of a solid fuel through the action of heat Process of pyrolysis The fuel is heated until its temperature reaches its fire point Decomposition takes place moisture in the fuel is slow converted to the vapor Pyrolysis -chemical process whereby fire consume the most solid part of fuel Stages of burning Incipient phase-beginning stages of fire Free burning phase- materials or structures are burning in the presence of adequate oxygen supply Smoldering mode-burning stage where in flame ceases but then smoke and heat completely fill the fire confines room Combustion products and their effects Effects of combustion products to the human body smoke -Irritates the respiratory tract -Damage the respiratory tract -Abnormally stimulates tear glands -Impaired vision -Cause excessive is sneezing and coughing Fire gases Cause death by asphyxia-carbon monoxide Causes swelling of the lungs- carbon monoxide

[@ma.liezelbangay3835]

PYROLYSIS AND STAGES OF BURNING • PYROLYSIS - thermal decomposition of combustible material, chemical decomposition of a solid fuel through the action of heat - the result or the effect when a burning material creates PYROLYSIS - chemical process whereby fire consumes the must solid part of the fuel -------PROCESS OF PYROLYSIS------ 1. the fuel is heated until its temperature reaches its fire point. - when the energy is already consumed or the fuel is already consumed, it will not already produce vapor. 2. Decomposition takes place - moisture in the fuel is converted to - products combustible vapors that rise to the surface vapor - free radicals undergo combustion ***STAGES OF BURNING*** • INCIPIENT PHASE - beginning stage of fire - includes preparations, started to produce a spark or ignition : - begins with normal temperature - when the oxygen is plentiful - thermal updraft accumulates a higher point • FREE BURNING PHASE - materials or structures are burning in the presence of adequate oxygen supply - consume the other objects • SMOLDERING MODE BURNING STAGE - wherein flame ceases but dense smoke and heat completely fill the confined room - fuel is already consumed - flames sees but then smoke and heat completely fill the room - we can only see is there is no fire but what we see is the light and heat. - represented by the fire triangle when three sides representing fuel, temperature and oxygen √√EFFECTS OF COMBUSTION PRODUCTS TO THE HUMAN BODY√√ 1. SMOKE - irritates the respiratory tract - damage to the respiratory tract - abnormally stimulates tear glands - impaired vision - cause excessive sneezing and coughing * FIRE GASES 1. CAUSES DEATH BY ASPHYXIA - carbon monoxide 2. CAUSES SWELLING OF THE LUNGS - carbon dioxide CARBON DIOXIDE VS CARBON MONOXIDE • CARBON DIOXIDE * Produced by: - combustion, breathing, decay of organic matter * Lighter/Heavier than Air - 55% heavier * Flammable - no * Detectable - can smell at very high concentrations * Dangerous - only when it replaces almost all oxygen •CARBON MONOXIDE * Produced by: - combustion when too little oxygen is available * Lighter/Heavier than Air - 2% lighter * Flammable - yes * Detectable - cant be smelled or seen * Dangerous - toxic to almost all life at over 50 parts

[@maldojeremy8608]

PYROLYSIS AND STAGE OF BURNING PYROLYSIS- Thermal Decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat. PROCESS OF PYROLYSIS •The fuel is heated until its temperature reaches its fire point. •Decomposition take place- Moisture in the fuel is converted to vapor. PYROLYSIS EXAMPLE Chemical process whereby fire consumes the most solid part of the fuel. Stages of burning 1. Incipient phase- Beginning stage of fire. 2. Smoldering mode- Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. Combustion Products and Thier effects. •Effects of Combustion products to the human body: SMOKE •Irritates the respiratory tract •Damage to the respiratory tract •Abnormally stimulates tear glands •Impaired vision FIRE GASES •Causes death by Asphyxia -Carbon monoxide •Causes swelling of the lungs -Carbon dioxide

[@johnmarcoagonia5304]

Pyrolysis and Stages of Burning • Pyrolysis- Thermal decomposition of combustible matter, chemical decomposition of a solid fuel through the action of heat. - Chemical process whereby fire consumes the most solid part of the fuel. Process of pyrolysis; o The fuel is heated until its temperature reaches its fire point. When the energy is already consumed it will be no longer produced vapor. Its only means that once the materials, energy, and fuel are already consumed there will be no more vapor. Remember it is the vapor that is being burned not the material. o Decomposition takes place moisture in the fuel is coverted to vapor. Stages of burning; o Incipient Phase- beginning stage of fire it includes the preparation it include when a time that you start a spark or ignition starts. o Free Burning Phase- material or structures are burning in the presence of adequate oxygen supply. o Smoldering mode- burning stage where in flames ceases but then smoke and heat completely fill the confined room. Combustion product and their effect in the human body Smoke  Irritate the respiratory tract  Damage to the respiratory tract  Abnormally stimulates tear glands  Impaired vision  Cause excessive sneezing and coughing Fire gases  Causes death by asphyxia  Causes swelling of lungs

[@tinglejohnhenrym.6347]

Pyrolysis and Stage of Burning Pyrolysis - thermal decomposition of combustible matters; chemical decomposition of a solid fuel through the action of heat. Process of Pyrolysis The fuel is heated until it's temperature reaches its fire point. If the fuel is already consumed, it will not produce vapor. It only means that the material and energy is already consumed. Decomposition takes place - moisture in the fuel is converted to vapor. Combustible Vapors ( Free radicals) Pyrolysis - chemical process whereby fire consumes the most solid part of fuel. What are the stages of burning? Incipient Phase - beginning stage of fire; includes preparation, started to produce fire. Free Burning Phase - materials or structures are burning in the presence of adequate oxygen supply. Smoldering Mode - burning stage where in the flame ceases but dense smoke and heat completely fill the confined room Flames may die and may leave only glowing inverse under pressure oxygen. Effects of Combustion products to the human body Smoke: Irritates the respiratory act Damage to the respiratory tract abnormally stimulates tear glands impaired vision Causes excessive sneezing and coughing Fire Gases Cause death by asphyxia - Carbon monoxide ( dangerous) Causes swelling of lungs - Carbon Dioxide there are both colorless

[@janjhayruzreyes6209]

PYROLYSIS AND STAGE OF BURNING PYROLYSIS- Thermal decomposition of combustible matter, chemichal decompisitionof solid fuel through action of heat -Chemical process whereby fire consumes the most solid part of tge fuel. PROCESS OF PYROLYSIS • The fuel is heated until its temperature reaches its fire point • Decomposition takes place-moisture in the fuel is converted to vapor STAGES OF BURNING • INCIPIENT PHASE- beginning stage of fire ( normal temperature) • FREE BURNING PHASE- materials or structure are burning in the presence adequate oxygen supply • SMOLDERING MODE-burning stafe wherein flame ceases ( light and) smoke EFFECTS OF COMBUSTION PRODUCTS TO THE HUMAN BODY: • SMOKE - Irritates the respiratory tract - Damage to respiratory tract - Abnormally stimulates tesr glands - Impaired vision - Cause excessive sneezing and coughing • FIRE GASES - Cause death by ASPHYXIA-carbon monoxide( more flammable,cant smelled and seen,more dangerous) - Causes swelling of the lungs - carbon dioxide( not flammable, detectable ,dangerous when replaces all oxygen)

[@alfonsomora930]

thank you

[@gimancamilaairisha.3838]

Pyrolysis - thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat. - result of effect of burning material Process of Pyrolysis -The fuel is heated until its temperature reaches its fire point. -Decomposition takes place -moisture in the fuel is converted to vapor. -Chemical Process whereby fire consumes the most solid part of fuel. What are the stages of burning? Incipient Phase- beginning stage of fire Free Burning Phase- materials or structures are burning in the presence of adequate oxygen supply. Smoldering Mode- burning stage when flame ceases but dense smoke and heat completely fall the confined room

[@janelahbaylen5719]

PYROLYSIS AND STAGES OF BURNING The fire consumes the most solid part of the fuel; thermal decomposition of combustile matter; chemical decomposition of a solid fuel through the action heat. The result when the material is burned. PROCESS OF PYROLYSIS - The fuel is heated until its temperature reaches its fire point. - Decomposition takes place - moisture in the fuel is converted to vapor. - Decomposition produces combustible vapors that rise to the surface of the fuel. - Free radicals undergo combustion. STAGES OF BURNING *INCIPIENT PHASE -Beginning stage of life (includes preparation) CHARACTERISTICS; 1.Temperature reaches its fire point. 2. Oxygen plentiful 3. Thermal updraft rise accumulates at higher point. 4. Flame temperature of 1000 degree F. 5. The temperature at the base of the fire is 400-800 degree F. 6. Ceiling temperature is about 2000F. 7. Producing pyrolysis products: Effects; (CO2, CO, SO2,Water Vapor and other gases) There is enough oxygen to support combustion and ignition point reaches the firepoint. What we can see is the result of the combustion where the burning material is turning now into product of pyrolysis. FREE BURNING PHASE Burning stage whereby materials or structures are burning in the presence of adequate oxygen supply. Smoldering Phase - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. Combustion products and the effects; SMOKE Irritates the respiratory tract Abnormally stimulates their glands Impaired vision Cause excessive sneezing FIRE GASES CARBON MONOXIDE Causes death by ASPHYXIA Flammable Can’t be seen or smelled More dangerous CARBON DIOXIDE Causes swelling of the lungs Not flammable Can smell at very high concentrations It takes time

[@breexmoreev.villabroza6938]

PYROLISIS- thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat. Chemical process whereby fire consumes the most solid part of the fuel PROCESS OF PYROLISIS - The fuel is heated until its temperature reaches its fire point - Decomposition takes place moisture in the fuel is converted to vapor INCIPIENT PHASE- beginning stage of fire FREE BURNING PHASE- materials or structures are burning in the presence of adequate oxygen supply SMOLDERING MODE- burning stage wherein flame ceases but dense smoke and heat completely fill the confined room EFFECTS OF COMBUSTION PRODUCTS TO THE HUMAN BODY SMOKE - Irritates the respiratory tract - Damage to the respiratory tract - Abnormally stimulates tear glands - Impaired vision - Cause excessive sneezing and coughing FIRE GASES CAUSES DEATH BY ASPHYXIA- carbon monoxide CAUSES SWELLING OF THE LUNGS- carbon dioxide

[@edwardgutierrez9718]

PYROLYSIS AND STAGES OF BURNING PYROLYSIS- Thermal decomposition of combustible matter, chemical decomposition of a solid fuel through the action of heat. PROCESS OF PYROLYSIS * the fuel is heated unit its temperature reaches its fire point. * decompositon takes place- moisture in the fuel is converted to vapor. Chemical process whereby fire consumes the most solid part of the fuel. What are the stages of burning? Incipient Phase- beginning stage of fire. Free Burning Phase- materials or structures are burning in the presence of adequate oxygen supply. SMOLDERING MODE * Burning Stage- wherein flame ceases but dense smoke and heat completely fill the confined room. COMBUSTION PRODUCTS AND THEIR EFFECTS Effects of combustion products to the human body. SMOKE * Irritates the respiratory tract * Damage to the respiratory tract * Abnormally stimulates tear glands * Impared vision Cause excessive sneezing and coughing FIRE GASES * Cause death by ASPHYXIA- Carbon Monoxide * Cause swelling of the lungs- Carbon Dioxide CO2 Carbon Dioxide * combustion, breathing, decay of organic matter * 55% heavier * NO * can smell at very high concentrations * only when it replaces almost all oxygen. CARBON MONOXIDE * comustiin when too little oxygen is available * 2% lighter * YES * Can't be smelled or seen Toxic to almost all life at over 50 parts per million

[@ianamaebagtas4797]

Pyrolysis and Stages of Burning Key Notes Pyrolysis - thermal decomposition of combustible matter; fire consumes the most solid part of the fuel Process of Pyrolysis: -Fuel is heated until its temperature reaches its fire point -Decomposition takes place - moisture in the fuel is converted to vapor Stages of Burning 1. Incipient Phase - beginning stage of life 2. 2. Free Burning Phase - materials or structure are burning in the presence of adequate oxygen supply 3. Smoldering mode - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room 4. Effects and Products of Combustion: 5.  Smoke - irritates and damage the respiratory tract, impaired vision 6.  Fire Gases - caused death by ASYPHYIA and cause swelling of lungs

[@lizellvalencia9714]

PYROLYSIS AND STAGES OF BURNING PYROLYSIS - thermal decomposition of combustible material; - matter chemical decomposition of solid fuel through the action of heat. PROCESS OF PYROLYSIS 1. The fuel is heated until its temperature reaches its fire point 2. Decomposition takes place moisture in the fuel is converted to vapor . CHEMICAL PROCESS - whereby fire consumes the most solid part of fuel . STAGES OF BURNING INCIPIENT PHASE - beginning stage of fire CHARACTERISTICS: 1. Normal room temperature 2. Oxygen plentiful 3. Thermal updraft rise accumulates higher point 4. Flame temperature of 1000 degree F 5. Temperature at base of the fire is 400-800 degree F 6. Ceiling temperature is about 2000F 7. Producing pyrolysis products FREE BURNING PHASE - materials or structures are burning in the presence of adequate oxygen supply . CHARACTERISTICS: 1. Fire involve more fuel 2. Oxygen supply is depleted 3. Heat accumulates at upper area 4. Temperature : 800-1000F at base fire1200-1600F at the ceiling 5. Accelerated pyrolytic processes take place. 6. Development of convection current. 7. Pyrolytic decomposition moves upward on the walls 8. Occurrence of flashover 9. Area is fully involved. SMOLDERING PHASE - burning stage wherein flame cease but dense smoke and heat completely fill the confined room. CHARACTERISTICS: 1. Oxygen drops at 13 percent, causing the flame to vanish 2. Flames may die and leave only glowing embers 3. Intense heat will vaporize lighter fuel 4. Products of incomplete combustion increase 5. Temperature throughout the building is very high and normal breathing is not possible 6. Oxygen deficiency may cause back draft. EFFECTS OF COMBUSTION PRODUCTS TO HUMAN BODY Irritated respiratory tract - Damage to respiratory tract - Abnormally stimulates tear glands - Impaired vision - Cause excessive sneezing and coughing FIRE GASES - causes death by asphyxia - carbon monoxide - Causes swelling of lungs - carbon dioxide.

[@lyrenemillares5241]

PYROLYSIS AND STAGES OF BURNING * Thermal decomposition of combustible matter; chemical decomposition of a solid fuels through the action of heat. *Result or effect of when combustible material is consumed by the fire it will show a pyrolysis PROCESS OF PYROLYSIS: *Fuel is heated until its temperature reaches its fire point. *When the fuel is already consumed it will not already produce vapor *The material and energy are already consumed it will not produce vapor (being burned not the material) *The decomposition takes place-moisture in fuel is converted to vapor. COMBUSTIBLE VAPORS - FREE RADICALS Reaction of exothermic when one thing is exposed to heat release and releases energy there is possibility that the thing will no longer produce vapor STAGES OF BURNING INCIPIENT PHASE *Beginning stage of fire /Preparation, when a fire that you start produce a spark or ignition, *Begin with the normal temperature, ang makes way that make cause to increase the ignition (increase the temperature) *Thermal updrafts accumulate a higher point when there is a possibility that you can increase the temperature and flame temperature of 1000 degree Fahrenheit. PYROLOSIS PRODUCTS *Carbon dioxide *Sulfur dioxide *Carbon monoxide *Water vapor etc., 38deg.cel = 98deg.far FREE BURNING PHASE *Materials or structures are burning in the presence of adequate oxygen supply/ 1300deg.far area is fully involved. *Objects where the fire originated are already affected or consumed. SMOLDERING MODE *Burning stage wherein flame ceases but dense smoke and heat completed fill the confined room. CHARACTERISTIC: flames may only die and leave only glowing inverse or super-heated fuel under the pressure with little oxygen. *Intense heat will vaporize lighter fuel components such as hydrogen, methane increasing the hazard and temperature throughout the building is very high and normal breathing is not possible. *it has oxygen deficiency EFFECTS OF COMBUSTION PRODUCTS TO THE HUMAN BODY: SMOKE *Irritates respiratory tract *Impaired vision *Damage to the respiratory tract *Cause excessive sneezing and coughing *Abnormally stimulates tear glands FIRE GASES *Causes death by ASPHYXIA- carbon monoxide *Causes swelling of lungs- carbon dioxide CARBON DIOXIDE VS CARBON MONOXIDE 0O0 STRUCTURE O0 Combustion, breathing, decay of organic matter. PRODUCED BY combustion when too little oxygen is Available 55%H LIGHTER/HEAVIER THAN AIR 2% L NO FLAMMABLE YES Can smell at very high concentration DETECTABLE can’t be smelled or seen Only when it replaces almost oxygen DANGEROUS toxic to almost all life at over 50 parts per million

[@delosreyesmarianicholle1423]

PYROLYSIS AND STAGES OF BURNING PYROLYSIS -Thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat. - Chemical process whereby fire consumes the most solid part of the fuel - thermal decomposition of combustible matter decomposition of a solid fuel through the action of heat - result or effect when a burning material is burned or when combustible material is consumed by the fire. PROCESS OF PYROLYSIS: 1. The fuel is heated until its temperature reaches its fire point. 2. Decomposition takes place - moisture in the fuel is converted to vapor. STAGES OF BURNING/FIRE: •INCIPIENT PHASE - beginning stage of fire. - is the preparation and started to ignition - burning a piece of wood CHARACTERISTICS: -Normal room temperature -Oxygen plentiful -Thermal updraft -Flame temperature 1000°Farenheit •FREE BURNING PHASE - materials or structures are burning in the presence of adequate oxygen supply. CHARACTERISTICS: - the fire has involved more fuel - oxygen supply is depleted -Heat accumulates at upper area Temperature 800-1000° Farenheit base of fire, 1300 1600°Farenheit the ceiling. - SMOLDERING MODE - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. - there is no fire but there is heat, light and smoke -fuels are already consumed CHARACTERISTICS: -Oxygen drop to 13% below -Flames may die and leave only glowing embers -Intense heat will vaporize -Oxygen deficiency may cause back draft. COMBUSTION PRODUCTS AND THEIR EFFECTS Effects of combustion products to the humanbody: SMOKE Irritates the respiratory tract Damage to the respiratory tract Abnormally stimulates tear glands Impaired vision Cause excessive sneezing and coughing FIRE GASES • Causes death by ASPHYXIA - carbon monoxide • Causes swelling of the lungs - carbon dioxide DISTINCTION BETWEEN CO² and CO CARBON DIOXIDE -Combustion breathing, decay of organic matter -55% heavier -No flame -Can smell -Dangerous when it replaces almost all oxygen CARBON MONOXIDE -Combustion when too little oxygen is available -2% lighter -Its flammable -Can't be seen or smell -Toxic to almost all life at over 50 parts per million

[@balmeszairelm.5159]

PYROLYSIS -Thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat -when the combustible material is consumed by the fire it will show pyrolysis -chemical process whereby fire consumes the most solid part of the fuel PROCESS OF PYROLYSIS: 1. Fuel is heated until its temp. Reaches its fire point 2. Decomposition takes place-moisture in the fuel is converted to vapor 3. Decomposition produces combustible vapor that rise to the surface of the fuel Stages of Burning Incipient Phase- beginning stage of fire or the preparation Characteristics: 1. Normal room temperature or normal temperature 2.oxygen plentiful 3. Thermal updraft rise at higher points 4. Flame temp. Of 1000°f 5. Temp. Are base of the fire is 400-800°f 6. ceiling temp. Is about 200°f 7. Producing pyrolysis products Free burning phase- materials or structures are burning in the presence of adequate oxygen supply Characteristics: 1.fire has involved more fuel 2. Oxygen supply is depleted 3. Heat accumulates at upper area 4. Temp.: A. 800-1000°f- base of fire B. 1200-1600°f- the ceiling 5.occurrence of flashover 6. Area is fully involved. Smoldering phase (mode)- flame ceases but dense smoke and heat completely fill the confined room Characteristics: 1. Oxygen drops to 13% or below causing the flame to vanish and the heat to develop in layers 2. Flames may die or leave only glowing embers under pressure with little oxygen 3. Intense heat will vaporize lighter fuel components 4. Products of incomplete combustion increase, particularly carbon monoxide-ignition temp.of about 1125°f 5. Temp. Throughout the building is very high and normal breathing is not possible 6. Oxygen deficiency may not cause back draft. Effects of combustion products to the human body: Smoke: -irritates the respiratory tract -damage to respiratory tract -abnormally stimulates tear glands -impaired vision -cause excessive sneezing and coughing Fire gases: -causes death by ASPHYXIA-carbon monoxide -causes swelling of the lungs-carbon dioxide Carbon dioxide -produced by combustion, breathing, decay of organic matter -55% heavier -it is not flammable -Detectable? Can be smell at very high concentrations -Dangerous? Only when it replaces almost all oxygen Carbon monoxide -produced by combustion, when too little oxygen is available -2% lighter -flammable? Yes -Detectable? Can't be smelled or seen -Dangerous? Toxic to almost all life at over 50 parts per million Both are colorless

[@odjemertrishaannl.3024]

Pyrolysis and the stages of burning Pyrolysis - result of burning materials -thermal decomposition of combustible matter; -decomposition of a solid fuel through the action of heat - Result or effect when a burning material is burned or when combustible material is consumed by the fire Process of Pyrolysis: 1. Fuel is heated until its temperature reaches its fire point 2. Decomposition take place - fuel is converted to vapor Vapor is the one that is being burned and not the material Stage of Burning Incipient Phase - beginning stage of fire -preparation and started to ignition -burning the piece of wood Characteristics: -Normal room temperature -Oxygen plentiful -Thermal updraft -Flame temperature 1000 degree F. Free Burning Phase - burning in the presence of adequate oxygen supply -consumed the other object Characteristics: -Fire has involved more fuel -Oxygen supply is depleted -Heat accumulates at upper area Temperature 800-1000 F base of fire, 1300 1600 F the ceiling * Chemical process whereby fire consumes the most solid part of the fuel. When the wood didn't produce vapor it will turn on into charcoal because the vapor is already consumed. Smoldering Phase - burning stage wherein flame ceases -no fire but there heat, light and smoke -fuels are already consumed Characteristics: -Oxygen drop to 13% below -Flames may die and leave only glowing embers -Intense heat will vaporize -Oxygen deficiency may cause back draft. Effects of Combustion products to human body: Smoke: -Irritates the respiratory tract -Damage the respiratory tract -Abnormally stimulates tear glands -Impaired vision -Cause excessive sneezing and coughing Fire Gases Causes death by Asphyxia carbon monoxide Causes swelling of the lungs carbon dioxide Carbon Dioxide -Combustion breathing, decay of organic matter -55% heavier -No flame -Can smell -Dangerous when it replaces almost all oxygen Carbon Monoxide -Combustion when too little oxygen is available -2% lighter -Its flammable -Can’t be seen or smell -Toxic to almost all life at over 50 parts per million

[@comiaclarenzeb.3790]

Pyrolysis- result of burning materials -thermal decomposition of combustile matter -decomposition of a solid fuel through the action of heat Vapor- is one being burned not the material Process of Pyrolysis: -Fuel is heated until its temperature reaches its fire point -Decomposition take place -fuel is converted to vapor Stage of Burning Incipient Phase- beginning stage of fire -preparation and started to ignition -burning the piece of wood Characteristics: -Normal room temperature -Oxygen plentiful -Thermal updraft -Flame temperature 1000 degree F. Free Burning Phase- burning in the presence of adequate oxygen supply -consumed the other object Characteristics: -Fire has involved more fuel -Oxygen supply is depleted -Heat accumulates at upper area -Temperature 800-1000 F base of fire, 1300- 1600 F the ceiling * chemical process whereby fire consumes the most solid part of the fuel. When the wood didn't produce vapor it will turn on into charcoal because the vapor is already consumed. Smoldering Phase- burning stage wherein flame ceases -no fire but there heat, light and smoke -fuels are already consumed Characteristics: -Oxygen drop to 13% below -Flames may die and leave only glowing embers -Intense heat will vaporize -Oxygen deficiency may cause back draft. Effects of Combustion products to human body: Smoke: -Irritates the respiratory tract -Damage the respiratory tract -Abnormally stimulates tear glands -Impaired vision -Cause excessive sneezing and coughing Fire Gases -Causes death by Asphyxia- carbon monoxide -Causes swelling of the lungs- carbon dioxide Carbon Dioxide -Combustion breathing, decay of organic matter -55% heavier -No flame -Can smell -Dangerous when it replaces almost all oxygen Carbon Monoxide -Combustion when too litle oxygen is available -2% lighter -Its flammable -Cant be seen or smell -Toxic to almost all life at over 50 parts per million

[@paduacrazeljoy264]

Pyrolysis and Stages of Burning Pyrolysis - thermal decomposition of combustible matter chemical decomposition of solid fuel through the action of heat . Process of Pyrolysis • Fuel is heated until its temperature reaches its fire point • Decomposition takes place - moisture in the fuel is converted to vapor Stages of Burning • Incipient Phase - beginning stage of life • Free Burning Phase - materials or structure are burning in the presence of adequate oxygen supply • Smoldering mode - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room Effects and Products of Combustion: • Smoke - irritates and damage the respiratory tract, impaired vision • Fire Gases - caused death by ASYPHYIA and cause swelling of lungs

[@sumiranjohnaironf.5505]

PYROLYSIS AND STAGES OF BURNING PYROLYSIS - Thermal decomposition of combustible matter; chemical decomposition of a solid fuel through the action of heat. PROCESS OF PYROLYSIS  The fuel is heated until its temperature reaches its fire point.  Decomposition takes place - moisture in the fuel is converted to vapor. PYROLYSIS • Chemical process whereby fire consumes the most solid part of the fuel. WHAT ARE THE STAGES OF BURNING? 1. INCIPIENT PHASE - the beginning stage of fire. 2. FREE BURNING PHASE - materials or structures are burning in the presence of adequate oxygen supply. SMOLDERING MODE • Burningig stage wherein flame ceases but dense smoke and heat completely fill the confined room. COMBUSTION PRODUCTS AND THEIR EFFECTS • Effects of combustion products to the human body: SMOKE  Irritates the respiratory tract  Damage to the respiratory tract  Abnormally stimulates tear glands  Impaired vision  Cause excessive sneezing and coughing FIRE GASES • Causes death by ASPHYXIA - carbon monoxide • Causes swelling of the lungs - carbon dioxide CARBON DIOXIDE (CO2) PRODUCED BY - Combustion, breathing, decay of organic matter LIGHTER/ HEAVIER THAT AIR - 55% heavier FLAMMABLE - NO. DETECTION - Can smell at very high concentrations DANGEROUS - Only when it replaces almost all oxygen CARBON MONOXIDE (CO) PRODUCED BY - Combustion when too little oxygen is available LIGHTER/ HEAVIER THAT AIR - 2% lighter FLAMMABLE - YES DETECTION - Can’t be smelled or seen DANGEROUS - Toxic to almost all life at over 50 parts per million

[@gribbinjohnalberto2314]

Pyrolysis and Stages of Burning Pyrolysis - thermal decomposition of combustible matter; fire consumes the most solid part of the fuel Process of Pyrolysis: -Fuel is heated until its temperature reaches its fire point -Decomposition takes place - moisture in the fuel is converted to vapor Stages of Burning 1.Incipient Phase - beginning stage of life 2.Free Burning Phase - materials or structure are burning in the presence of adequate oxygen supply 3.smoldering mode - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room 4.Effects and Products of Combustion: 5.Smoke - irritates and damage the respiratory tract, impaired vision 6. Fire Gases - caused death by ASYPHYIA and cause swelling of lungs

[@gutierrezzcesiahrizzm.9521]

PYROLISIS AND STAGES OF BURNING  PYROLISIS - thermal decomposition of combustible matter; chemical the composition of solid fuel through action of heat. PROCESS OF PYROLISIS The fuel is heated until its temperature reaches its fire point; vapor is one being burned not the material Decomposition take place - moisture in the fuel is converted to vapor. Chemical process whereby fire consumes the most solid part of the fuel. WHAT ARE THE STAGES OF BURNING?  INCIPIENT PHASE - beginning stage of fire, preparation and started the ignition CHARACTERISTICS: - Normal temperature - Oxygen is plentiful - Thermal updraft raises accumulate higher point - Flame temperature 1000 degree Fahrenheit  FREE BURNING PHASE - materials or structures are burning in the presence of adequate oxygen supply. CHARACTERISTICS: - Fire has involved more fuel - Oxygen supply is depleted - Heat accumulates at higher area - Temperature: 800-1000 degree Fahrenheit base of fire, 1200-1600 Fahrenheit the ceiling  SMOLDERING MODE - burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. No fire but there are heat, light, and smoke. CHARACTERISTICS: - Oxygen drop to 13% or below - Flames may die or leave only glowing embers - Intense heat will vaporize - Oxygen deficiency may cause back draft EFFECTS OF COMBUSTION PRODUCTS TO THE HUMAN BODY :  SMOKE - Irritates the respiratory tract - Damage to the respiratory tract - Abnormal stimulates tear glands - Impaired vision - Cause excessive sneezing and coughing - Fire gasses - Cause by death by asphyxia - carbon monoxide - Cause swelling of the lungs - carbon dioxide  CARBON DIOXIDE - Combustion, breathing, decay of organic matter - 55% heavier - No flame - Can smell at very high concentration - Its dangerous only when it replaces almost all oxygen  CARBON MONOXIDE - Combustion when too little oxygen is available - 2% lighter - Flammable - Cant be smelled or seen - Toxic to almost fire and over 50 parts per million

[@egamincathlynb2189]

PYROLISIS AND STAGES OF BURNING **PYROLYSIS - As a result, when a material is burned it creates pyrolysis -chemical decomposition of a solid fuel through the action of heat. EXAMPLE. CHARCHOAL **PROCESS OF PYROLYSIS 1. fuel is heated until its temp reaches its fire point -when the fuel is already consumed it will not create vapor -means that the energy is already consumed that the vapor is not being produced. VAPOR IS THE ONE BEING BURNED -it only happen when it reaches fire point 2. DECOMPOSITION takes place - moisture in the fuel is converted to vapor -reach the fire point and produced energy, then vapor is produced 3. Decomposition produced combustible be a force that rise to the surface of the fuel. 4. Free radicals undergo combustion **STAGES OF BURNING *INCIPIENT PHASE- BEGINNING STAGE OF FIRE -Normal room temperature -Flame temperature of 1000 degree fahrenheit. *FREE BURNING PHASE -the presence of adequate oxygen - materials or structures are burning in the presence of adequate oxygen supply. -Fire has involved more fuel. -Oxygen supply is depleted. -Temperature at the base of far is 800 to 1,000 degrees fahrenheit. **Effects of combustion products to the human body. *SMOKE -Irritates the respiratory tract -Damage to the respiratory tract -Abnormally is stimulates tear glands -Impaired vision -Cause excessive sneezing and coughing. *FIRE GASES -CAUSES DEATH BY ASPHYXIA- carbon monoxide -CAUSES SWELLING OF THE LUNGS-carbon dioxide. ** DISTINCTION BETWEEN CARBON DIOXIDE AND CARBON MONOXIDE. *CARBON DIOXIDE PRODUCED BY- combustion breathing decay of organic matter LIGHTER OR HEAVIER THAN AIR- 55% heavier. FLAMMABLE- No DETECTABLE- can't smell at very high concentration. DANGEROUS- only when it replaces almost all oxygen. *CARBON MONOXIDE PRODUCED BY- combustion when two little oxygen is available. LIGHTER OR HEAVIER THAN AIR- 2% lighter. FLAMMABLE- yes DETECTABLE- can be seen or smelled DANGEROUS- toxic to almost all life at over 50 parts per million. **CARBON MONOXIDE AND CARBON DIOXIDE- both are colorless

[@angelovelasco7402]

PYROLYSIS AND STAGES OF BURNING *Pyrolysis- Thermal decomposition of combustible matter. Chemical process where fire consumes the most solf part of the fuel Process of Pyrolysis -the fuel is heated until its temperature reaches its fire point. Decomposition takes place moisture in the fuel is converted to vapor. Stages of Burning *Incipient phase - beginngingy stage of fire *Free burning phase - materials or structures are burning in the presence of adequate oxygen supply *Smoldering mode-burning stage wherein falme ceases but dense smoke and heat completely fill in the confined room Effect of combustion products to the human body SMOKE -irritates the respiratory Tract -damage to the respiratory tract -abnormally stimulates tear glands -impaired vision FIRE GASES *Carbon Monoxide -causes death by ASPHYXIA -flammable -lighter -can't be smelled or seen -toxic to almost all lufe at over 50 parts per million CARBON DIOXIDE - causes swelling of lungs -heavier -not flammable -can smell at very high concentrations -only dangerous when it replace almost all oxygen

[@fellonejacobt.1843]

PYROLYSIS - The fire consumes the most solid part of the fuel - thermal decomposition of combustible matter - chemical decomposition of a solid fuel through the action of heat. PROCESS OF PYROLYSIS: - The fuel is heated until its temperature reaches its fire point. - Decomposition takes place - moisture in the fuel is converted to vapor. - Decomposition produces combustible vapors that rise to the surface of the fuel. - Free radicals undergo combustion. STAGES OF BURNING Incipient Phase - beginning stage of fire. - Normal room temperature - Oxygen plentiful - Thermal updraft rise accumulates at higher point. - Flame Temperature of 1000 degree F. Free Burning Phase - Burning stage whereby materials or structures are burning in the presence of adequate oxygen supply. Characteristics: - Fire has involved more fuel. - Oxygen supply is depleted. - Heat accumulates at upper area. - Temperature: a) 800-1000oF @ the base of fire b) 1200-1600oF @ the ceiling Smoldering Phase - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. - No fire but there heat, light and smoke. CHARACTERISTICS: - Oxygen drops to 13% or below causing the flame to vanish and the heat to develop in layers. - Flames may die and leave only glowing embers or superheated fuel under pressure with little oxygen. - Intense heat will vaporize lighter fuel components such as hydrogen, methane, increasing the hazard. - Products of incomplete combustion increase Combustion products and their effect - effects of combustion products to the human body: Smoke; - irritates the respiratory tract - damage to the respiratory tract - abnormally stimulates tear gland - impaired vision Cause excessive sneezing and coughing Fire gases - causes death by asphyxia Carbon monoxide ✓ combustion breathing, decay of organic matter ✓55% heavier ✓ no flame ✓can smell ✓ dangerous when it replaces almost all oxygen - causes swelling of the lungs Carbon dioxide ✓ combustion when too little oxygen is available ✓ 2% lighter ✓ can't be seen or smell ✓ it's flammable ✓ toxic to almost all life at over 50 parts per million

[@lesliemorcilla3735]

PYROLYSIS AND STAGES OF BURNING PYROLYSIS- Thermal decomposition of combustible matter, chemical decomposition of a solid fuel through the action of heat. PROCESS OF PYROLYSIS - the fuel is heated unit its temperature reaches its fire point. - decompositon takes place- moisture in the fuel is converted to vapor. Chemical process whereby fire consumes the most solid part of the fuel. What are the stages of burning? Incipient Phase- beginning stage of fire. Free Burning Phase- materials or structures are burning in the presence of adequate oxygen supply. SMOLDERING MODE * Burning Stage- wherein flame ceases but dense smoke and heat completely fill the confined room. COMBUSTION PRODUCTS AND THEIR EFFECTS Effects of combustion products to the human body. SMOKE - Irritates the respiratory tract - Damage to the respiratory tract - Abnormally stimulates tear glands - Impared vision Cause excessive sneezing and coughing FIRE GASES - Cause death by ASPHYXIA- Carbon Monoxide - Cause swelling of the lungs- Carbon Dioxide CO2 Carbon Dioxide - combustion, breathing, decay of organic matter - 55% heavier - NO - can smell at very high concentrations - only when it replaces almost all oxygen. CARBON MONOXIDE - comustiin when too little oxygen is available - 2% lighter - YES - Can't be smelled or seen Toxic to almost all life at over 50 parts per million

[@matibagjayvees.7853]

PYROLYSIS AND STAGES OF BURNING * PYROLYSIS -Thermal decomposition of combustible matter chemical decomposition of a solid fuel through the action of heat. PROCESS OF PYROLYSIS -The fuel is heated intil its temperature reaches its fire point. - Decomposition tajes place - moisture in the fuel is converted to vapor PYROLYSIS - Chemical process whereby fire consume the most solid part of the fuel. WHAT ARE TGE STAGES OF BURNING *INCIPIENT PHASE - Beginning stage of fire *FREE BURNING PHASE - Material or structures are burning in the presence of adequate oxygen supply. * SMOLDERING MODE - Burning stage wherein flame ceases but dense smoke and heat completely fill the cinfined room EFFECT OF COMBUSTION PRODUCT TO THE HUMAN BODY *SMOKE - Irritates the respiratory tract - Damage to the respiratory tract - Abnirmally stimulates tear glands - Impaired vision CAUSE EXCESSIVE SNEEZING AND COUGHING *FIRE GASES - Causes death by ASPHYXIA- CARBON MONOXIDE -Causes swelling of the lungs - CARBON DIOXIDE

[@bitancorlaramaec.9992]

PYROLYSIS AND STAGES OF BURNING PYROLYSIS - thermal decomposition of combustible material; matter chemical decomposition of solid fuel through the actin of heat PROCESS OF PYROLYSIS 1. The fuel is heated until its temperature reaches its fire point 2. Decomposition takes place moisture in the fuel is converted to vapor CHEMICAL PROCESS - whereby fire consumes the most solid part of fuel STAGES OF BURNING INCIPIENT PHASE - beginning stage of fire CHARACTERISTICS: 1. Normal room temperature 2. Oxygen plentiful 3. Thermal updraft rise accumulates higher point 4. Flame temperature of 1000 degree F 5. Temperature at base of the fire is 400-800 degree F 6. Ceiling temperature is about 2000F 7. Producing pyrolysis products FREE BURNING PHASE - materials or structures are burning in the presence of adequate oxygen supply CHARACTERISTICS: 1. Fire involve more fuel 2. Oxygen supply is depleted 3. Heat accumulates at upper area 4. Temperature : 800-1000F at base fire/ 1200-1600F at the ceiling 5. Accelerated pyrolytic processes take place 6. Development of convection current 7. Pyrolytic decomposition moves upward on the walls 8. Occurrence of flashover 9. Area is fully involved SMOLDERING PHASE - burning stage wherein flame cease but dense smoke and heat completely fill the confined room CHARACTERISTICS: 1. Oxygen drops at 13 percent, causing the flame to vanish 2. Flames may die and leave only glowing embers 3. Intense heat will vaporize lighter fuel 4. Products of incomplete combustion increase 5. Temperature throughout the building is very high and normal breathing is not possible 6. Oxygen deficiency may cause back draft EFFECTS OF COMBUSTION PRODUCTS TO HUMAN BODY: - Irritated respiratory tract - Damage to respiratory tract - Abnormally stimulates tear glands - Impaired vision - Cause excessive sneezing and coughing FIRE GASES - causes death by asphyxia- carbon monoxide - Causes swelling of lungs - carbon dioxide

[@edwardjohndiaz1771]

Pyrolysis and Stages of Burning Key Notes Pyrolysis - thermal decomposition of combustible matter; fire consumes the most solid part of the fuel Process of Pyrolysis: • Fuel is heated until its temperature reaches its fire point • Decomposition takes place - moisture in the fuel is converted to vapor Stages of Burning 1. Incipient Phase - beginning stage of life 2. Free Burning Phase - materials or structure are burning in the presence of adequate oxygen supply Smoldering mode - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room Effects and Products of Combustion:  Smoke - irritates and damage the respiratory tract, impaired vision  Fire Gases - caused death by ASYPHYIA and cause swelling of lungs

[@richardd.cariso4327]

Pyrolysis -thermal decomposition of combustible matter chemical decomposition of a solid fuel through the action of heat Process of pyrolysis The fuel is heated until its temperature reaches its fire point Decomposition takes place moisture in the fuel is slow converted to the vapor Pyrolysis -chemical process whereby fire consume the most solid part of fuel Stages of burning Incipient phase-beginning stages of fire Free burning phase- materials or structures are burning in the presence of adequate oxygen supply Smoldering mode-burning stage where in flame ceases but then smoke and heat completely fill the fire confines room Combustion products and their effects Effects of combustion products to the human body smoke

[@mltillyourich]

Pyrolysis- result of burning materials -thermal decomposition of combustile matter -decomposition of a solid fuel through the action of heat Vapor- is one being burned not the material Process of Pyrolysis: -Fuel is heated until its temperature reaches its fire point -Decomposition take place -fuel is converted to vapor Stage of Burning Incipient Phase- beginning stage of fire -preparation and started to ignition -burning the piece of wood Characteristics: -Normal room temperature -Oxygen plentiful -Thermal updraft -Flame temperature 1000 degree F. Free Burning Phase- burning in the presence of adequate oxygen supply -consumed the other object Characteristics: -Fire has involved more fuel -Oxygen supply is depleted -Heat accumulates at upper area Temperature 800-1000 F base of fire, 1300 1600 F the ceiling * chemical process whereby fire consumes the most solid part of the fuel. When the wood didn't produce vapor it will turn on into charcoal because the vapor is already consumed. Smoldering Phase- burning stage wherein flame ceases -no fire but there heat, light and smoke -fuels are already consumed Characteristics: -Oxygen drop to 13% below -Flames may die and leave only glowing embers -Intense heat will vaporize -Oxygen deficiency may cause back draft. Effects of Combustion products to human body: Smoke: -Irritates the respiratory tract -Damage the respiratory tract -Abnormally stimulates tear glands -Impaired vision -Cause excessive sneezing and coughing Fire Gases Causes death by Asphyxia carbon monoxide Causes swelling of the lungs carbon dioxide Carbon Dioxide -Combustion breathing, decay of organic matter -55% heavier -No flame -Can smell -Dangerous when it replaces almost all oxygen Carbon Monoxide -Combustion when too litle oxygen is available -2% lighter -Its flammable -Cant be seen or smell -Toxic to almost all life at over 50 parts per million

[@peterpascual5247]

Pyrolysis and Stages of Burning Pyrolysis - thermal decomposition of combustible matter; fire consumes the most solid part of the fuel Process of Pyrolysis: -Fuel is heated until its temperature reaches its fire point -Decomposition takes place - moisture in the fuel is converted to vapor Stages of Burning 1.Incipient Phase - beginning stage of life 2.Free Burning Phase - materials or structure are burning in the presence of adequate oxygen supply 3.smoldering mode - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room 4.Effects and Products of Combustion: 5.Smoke - irritates and damage the respiratory tract, impaired vision 6. Fire Gases - caused death by ASYPHYIA and cause swelling of lungs

[@macrhillejoycehernandez631]

PYROLYSIS AND STAGES OF BURNING * PYROLYSIS - thermal decomposition of combustible material, chemical decomposition of a solid fuel through the action of heat - the result or the effect when a burning material creates PYROLYSIS - chemical process whereby fire consumes the must solid part of the fuel *PROCESS OF PYROLYSIS 1. the fuel is heated until its temperature reaches its fire point. - when the energy is already consumed or the fuel is already consumed, it will not already produce vapor. 2. Decomposition takes place - moisture in the fuel is converted to - products combustible vapors that rise to the surface vapor - free radicals undergo combustion * STAGES OF BURNING 1. INCIPIENT PHASE - beginning stage of fire - includes preparations, started to produce a spark or ignition CHARACTERISTICS: - begins with normal temperature - when the oxygen is plentiful - thermal updraft accumulates a higher point - flame temperature of 1,000 degree F. - producing pyrolysis products carbon dioxide, carbon monoxide, sulfur dioxide, water vapor and other gases. 2. FREE BURNING PHASE - materials or structures are burning in the presence of adequate oxygen supply - consume the other objects CHARACTERISTICS: - fire has involved more fuel, oxygen supply is depleted heat accumulates at upper area temperature exceeds - 1,000 degree F. in incipient stages will now become 1,300 degree F. and area is fully involved *SMOLDERING MODE BURNING STAGE - wherein flame ceases but dense smoke and heat completely fill the confined room - fuel is already consumed - flames sees but then smoke and heat completely fill the room - we can only see is there is no fire but what we see is the light and heat. - represented by the fire triangle when three sides representing fuel, temperature and oxygen CHARACTERISTICS: - flames may die and only glowing embers or superheated fuel under the pressure with little oxygen - intense heat will vaporize lighter fuel components such as hydrogen, methane increasing the hazard and temperature throughout the building is very high * EFFECTS OF COMBUSTION PRODUCTS TO THE HUMAN BODY 1. SMOKE - irritates the respiratory tract - damage to the respiratory tract - abnormally stimulates tear glands - impaired vision - cause excessive sneezing and coughing * FIRE GASES 1. CAUSES DEATH BY ASPHYXIA - carbon monoxide 2. CAUSES SWELLING OF THE LUNGS - carbon dioxide CARBON DIOXIDE VS CARBON MONOXIDE ✓ CARBON DIOXIDE * Produced by: - combustion, breathing, decay of organic matter * Lighter/Heavier than Air - 55% heavier * Flammable - no * Detectable - can smell at very high concentrations * Dangerous - only when it replaces almost all oxygen ✓ CARBON MONOXIDE * Produced by: - combustion when too little oxygen is available * Lighter/Heavier than Air - 2% lighter * Flammable - yes * Detectable - cant be smelled or seen * Dangerous - toxic to almost all life at over 50 parts per million

[@bjornaudreyposugac8100]

PYROLYSIS AND STAGES OF BURNING The fire consumes the most solid part of the fuel; thermal decomposition of combustile matter; chemical decomposition of a solid fuel through the action heat. The result when the material is burned. PROCESS OF PYROLYSIS - The fuel is heated until its temperature reaches its fire point. - Decomposition takes place - moisture in the fuel is converted to vapor. - Decomposition produces combustible vapors that rise to the surface of the fuel. - Free radicals undergo combustion. STAGES OF BURNING *INCIPIENT PHASE -Beginning stage of life (includes preparation) CHARACTERISTICS; 1.Temperature reaches its fire point. 2. Oxygen plentiful 3. Thermal updraft rise accumulates at higher point. 4. Flame temperature of 1000 degree F. 5. The temperature at the base of the fire is 400-800 degree F. 6. Ceiling temperature is about 2000F. 7. Producing pyrolysis products: Effects; (CO2, CO, SO2,Water Vapor and other gases) There is enough oxygen to support combustion and ignition point reaches the firepoint. What we can see is the result of the combustion where the burning material is turning now into product of pyrolysis. FREE BURNING PHASE Burning stage whereby materials or structures are burning in the presence of adequate oxygen supply. Smoldering Phase - Burning stage wherein flame ceases but dense smoke and heat completely fill the confined room. Combustion products and the effects; SMOKE Irritates the respiratory tract Abnormally stimulates their glands Impaired vision Cause excessive sneezing FIRE GASES CARBON MONOXIDE Causes death by ASPHYXIA Flammable Can’t be seen or smelled More dangerous CARBON DIOXIDE Causes swelling of the lungs Not flammable Can smell at very high concentrations It takes time PHYSICAL PROPERTIES OF FIRE SPECIFIC GRAVITY The ratio of the weight of a solid or liquid substance to the weight and equal volume of water. (flammable liquids such as gasoline, diesel and several other products have a lower specific gravity than the water) VAPOR DENSITY The weight of a volume pure of gas composed to the volume of dry air at the same temp. And pressure. Material vapor density >1- heavier than air and will sink and concentrate in low-lying areas. Material vapor density

[@jetrofernandez1756]

PYROLYSIS AND STAGES OF BURNING PYROLYSIS- Thermal decomposition of combustible matter, chemical decomposition of a solid fuel through the action of heat. PROCESS OF PYROLYSIS - the fuel is heated unit its temperature reaches its fire point. - decompositon takes place- moisture in the fuel is converted to vapor. Chemical process whereby fire consumes the most solid part of the fuel. What are the stages of burning? Incipient Phase- beginning stage of fire. Free Burning Phase- materials or structures are burning in the presence of adequate oxygen supply. SMOLDERING MODE * Burning Stage- wherein flame ceases but dense smoke and heat completely fill the confined room. COMBUSTION PRODUCTS AND THEIR EFFECTS Effects of combustion products to the human body. SMOKE - Irritates the respiratory tract - Damage to the respiratory tract - Abnormally stimulates tear glands - Impared vision Cause excessive sneezing and coughing FIRE GASES - Cause death by ASPHYXIA- Carbon Monoxide - Cause swelling of the lungs- Carbon Dioxide CO2 Carbon Dioxide - combustion, breathing, decay of organic matter - 55% heavier - NO - can smell at very high concentrations - only when it replaces almost all oxygen. CARBON MONOXIDE - comustiin when too little oxygen is available - 2% lighter - YES - Can't be smelled or seen Toxic to almost all life at over 50 parts per million

[@anthonygacer7780]

PYROLYSIS AND STAGES OF BURNING PYROLYSIS- Thermal decomposition of combustible matter, chemical decomposition of a solid fuel through the action of heat. PROCESS OF PYROLYSIS - the fuel is heated unit its temperature reaches its fire point. - decompositon takes place- moisture in the fuel is converted to vapor. Chemical process whereby fire consumes the most solid part of the fuel. What are the stages of burning? Incipient Phase- beginning stage of fire. Free Burning Phase- materials or structures are burning in the presence of adequate oxygen supply. SMOLDERING MODE * Burning Stage- wherein flame ceases but dense smoke and heat completely fill the confined room. COMBUSTION PRODUCTS AND THEIR EFFECTS Effects of combustion products to the human body. SMOKE - Irritates the respiratory tract - Damage to the respiratory tract - Abnormally stimulates tear glands - Impared vision Cause excessive sneezing and coughing FIRE GASES - Cause death by ASPHYXIA- Carbon Monoxide - Cause swelling of the lungs- Carbon Dioxide CO2 Carbon Dioxide - combustion, breathing, decay of organic matter - 55% heavier - NO - can smell at very high concentrations - only when it replaces almost all oxygen. CARBON MONOXIDE - comustiin when too little oxygen is available - 2% lighter - YES - Can't be smelled or seen Toxic to almost all life at over 50 parts per million