What is a Boiler and How does It Work?

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In this video, we are going to discover what an industrial boiler is, and how it works.
But first, let us consider the term heat. Heat is vital in everyone’s day to day lives. Whether it be the heat to warm up our surroundings, or heat to be able to cook food, we all use it to some extent in our day to day activities.
Water and steam are great heat carriers and are not damaging to our environment. The boiling point of water at atmospheric pressure is 100°C or 212°F.
By pressurizing the boiling system by giving it an airtight seal, we can actually increase the boiling point.
This is how pressure cookers work. An airtight vessel to increase the pressure to increase the boiling point. This makes the food cook in a much shorter time than if an open saucepan were to be used.
So how does this compare with an industrial boiler?
Well, for a start, industrial boilers can cope with pressures much higher than a pressure cooker.
Industrial boilers are often made by welding together thick steel plates, allowing extremely high pressures to be made.
It has to be made incredibly strong to cope with the high pressure, as failure to do so will result in forces close to an exploding bomb!
The function of a boiler is to either produce hot water or steam. Hot water boilers heat water for the purpose of domestic or commercial heating and hot water supply.
Steam boilers generate steam in order to power turbines for power generation and various other industrial heating applications.
To visualize the effects of steam generation using a boiler, think of the steam powering a turbine.
When the steam passes through the blades of a turbine, the force turns the blades and accelerates the turbine.
Steam contains an enormous amount of energy, so it makes the turbine quite efficient and, depending on the fuel used to boil the water, quite energy-efficient too.
There are different types of boilers for all sorts of different applications.
We are going to cover a couple of the different types, including how each of the methods is able to generate heat, so you can familiarise yourself, and be able to correctly identify them.
Firstly, fire-tube boilers. The typical make up of this type of boiler is a furnace, a water tank acting as a boiler and a smokestack.
There are tubes running through the water tank carrying the heat from the furnace, and the smokestack vents the heat and gases caused by the heating effect so that the pressure does not continue to rise above the intended level.
So, the fuel is burned inside the furnace. The tubes transfer the heat of the furnace through the water in the tank. Once it is heated, the steam generated is moved along downstream.
Fire-tube boilers tend to be the cheapest type of boiler to produce, as they have a fairly simple construction but are typically limited for low to medium pressure applications due to the thickness of the outer shell containing the water.
Now that we have covered the fire-tube boiler, let’s have a look at a water-tube boiler.
The design is fairly similar to a fire-tube boiler, but instead of the furnace heating fire tubes to heat water in a tank, the furnace heats water tubes inside the furnace. In the same way, a fuel source is burned in the furnace, causing the water tubes inside to heat up.
Once again, when the water is boiled, steam is generated and moved downstream.
A water-tube boiler is more thermally efficient than a fire-tube boiler, but they are more complex to construct and the quality of the water can be a limiting factor. The water may need filtering to operate most effectively.
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[@freefiregame424]

Please make vedio of industrial chillers and coolers

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No one can explain more precisely then Realpars...too good to learn

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We are so happy to hear that, thanks for your support, Jashu!

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You have turned me into a multi experience Technician with just your videos. Thank you.

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That's amazing - thank you, Samuel! Keep up the learning curve!

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This is one of the best channel I have ever seen. Thanks for your videos.

[@realpars]

Hi Malik, You are very welcome. Great to hear that our course videos are beneficial to you! We have a free course on PLC Hardware, if you are interested in that as well bit.ly/2XnnUrF Happy learning!

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[@gayanmadusanka5230]

You have covered the most basic design of boilers in minutes. Thank you for your great effort

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Our pleasure, Gayan! Happy learning.

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Wow great work, thank you realpars team work.

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Thanks a lot, Sameer! Happy learning!

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Great! Thanks for your support, Zulfiqar!

[@FreshJokerTV]

Thank you. I’m trying to understand more and more about being a boiler operator so this got me on another level about how boilers work.

[@realpars]

Glad it was helpful!

[@NedumEze]

Water quality is key in fired Boilers. Please do a video on methods and technologies for cleaning the inside of the Tubes. And do say something about "soot blowing " the outside of the Tubes. Thanks for the helpful presentation

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[@hazee8089]

Very simple & Logical Explanation.

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Thanks for your support!

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It's very clear explanation. Thank you.

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You're very welcome, Fido!

[@_Breakdown]

Thanks for this great introductory video - Much appreciated!

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Glad you enjoyed it! You're very welcome.

[@ImranShaikh-kl7mj]

Really simple and easy to understand Thanks

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Happy to hear that, Imran!

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This was straight forward easy to learn video. Thank you

[@realpars]

Glad to hear that, Mike!

[@Ratman_Bejo]

real part shows the data control process for the boiler which is very useful for me, thank you, always success for you

[@realpars]

You're more than welcome, Ratman!

[@jasoncarlson2167]

This video is about to get me through my thermo project, thank you so much for making this so easy to understand!

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You are so welcome!

[@christopherwhaley906]

I would like to see you go more in depth on the beer making process.

[@chriswestrud2800]

Very straightforward.Thanks!

[@realpars]

Glad to hear that, Chris! You're very welcome.

[@er.shaanofficial3594]

The best video ever on boilers... Thanks a lot

[@realpars]

Happy to hear that!

[@er.shaanofficial3594]

Keep uploading such nice and informative videos...

[@reubinkirton640]

i used to work for a boiler company Jhon Thompson. the most common boilers that companies use are 10ton coal boilers because thay are the cheapest to run but needs a lot of maintenance unlike HFO (oil) and gass burners that are low to no maintenance. burners are more reliable and easy to use unlike coal boilers that need a operator and break down unexpectedly (a lot).

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Sounds good

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[@nelsonchinasamy9857]

Yes, my company had one where the fire bed chain broke very often.

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Good for quick learning in easiest way....tomorrow is my viva... And i learnt so many important points from it.... ✌✌😊😊

[@realpars]

Glad to hear that!

[@BhashyaMadurapperuma]

I always wanted to know how boilers work this video is very important for us thank you so much

[@realpars]

That's great to hear! Thanks for sharing.

[@Jai_ShriJagannath]

kzbin.info/www/bejne/m5uZlIyrrNl0pq8 La-Mont boiler working animation.

[@abdulgaffarmohammedshafee9333]

Thank you real pars it is good understanding programme

[@realpars]

Great to hear that, Abdul!

[@user-nd1be9yr8w]

Thank you , i really have learned from this video

[@realpars]

Happy to hear that!

[@odundoimran5784]

Thanks for the information

[@excellentknives]

Thanks For Informative videos ❤

[@realpars]

You are very welcome!

[@luisortega6887]

Thanks for the information, very clear, it would be good if you did something regarding the various options of flue gas economizers in boilers and application parameters of the various methods

[@realpars]

Great suggestion, Luis! I will be happy to pass this on to our course developers. Hopefully, this is something we can focus on in the near future.

[@rockyraccoon8405]

Excellent video...I wish you continued making these videos about thermodynamics and maybe explained the concept of exergy, with an exergetic analysis of a boiler or a turbine? It'll be so useful with your unique style of teaching Engineering things

[@realpars]

Hi Rocky, Thanks for your support! Great suggestion, I will forward this to our creator team. Hopefully, this is something we can think about when it comes to our future video courses. Thanks for sharing!

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Amazing video... Keep it up, I'm being introduced to the world and it's my first time.... I leant so much in couple minutes

[@realpars]

Great to hear that! You are so welcome.

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Our pleasure!

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Thank you so much for your lesson, I would like to have a Simatic manager step 7.

[@realpars]

You are very welcome! We have a couple of links through which you can download different versions of STEP7. Maybe these are helpful to you. STEP7 V5.6: sie.ag/2Hw6UKy STEP7 and WinCC V15: sie.ag/2Eo3LKJ TIA Portal Version 15 sie.ag/2J7tZ4y Happy learning!

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This is really helpful! Thanks you.

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Amazing!

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This the best and simplest way I ever seen thanks if you can make a video for how could read the boiler electrical diagram

[@realpars]

Thanks for your support, Yahai! Great suggestion as well, I will happily pass that on to our course developers. Happy learning!

[@electriciteindustrielle9251]

Thanks for the helpful presentation

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You are very welcome!

[@esgeyeofficial]

This video and explain is very clearly. I can do my homework about boiler.

[@realpars]

Glad to hear that! Happy learning, and always feel free to reach out if you have any questions along the way.

[@user-xo1xn7ss9z]

Thanks dear elder brother for your helpful tutorials.

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You are most welcome!

[@EsvAnistan]

Thank you so much..I learned so much

[@realpars]

You're very welcome! Great to hear that

[@lucasdunnock8593]

I work on boilers for a living, and while you generally have mechanics right (with the exception of the water tube boilers also having a mud drum and steam drum), fire tube boilers are also very common for high pressure steam systems (high pressure steam is 15psi and higher, and I’ve typically seen them run at about 100# of steam).

[@realpars]

Lucas, thank you for your insights. It is always great to get feedback from those most experienced in the industry. Our lessons are intended for automation engineers getting started in the industry and in order to spark interest in those considering or curious about a career in automation. We focus on the critical aspects of understanding the concepts of automation without delving too deeply into the process or equipment. I think our subscribers will find the additional information that you provided very helpful. Keep watching!

[@jeremynoor9680]

Hey I have a boiler problem I need help with I got water flow I got fuel I got fire and my pump is working but for some reason I am getting no hot water out of the system it is a raypak boiler with a 125 gallon storage tank any help would be appreciated thanks

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​@@jeremynoor9680try asking on r/plc

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If I can get ur WhatsApp number I will you to teach me how to operate a boiler, I have the video of the boiler

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​@@jeremynoor9680what was your problem?

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Thank you very much. I learn a lot from this video.

[@realpars]

You are very welcome, Paul! If you have any questions feel free to contact us!

[@Jai_ShriJagannath]

kzbin.info/www/bejne/m5uZlIyrrNl0pq8 La-Mont boiler working animation.

[@TIMOTHYEET69420]

I was more intrested in the steam boiler i found this video cuz im trying to learn about the boilers on the olympic class ships.. thanks for the amazing vid!

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You're very welcome!

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Excellent video and thanks for your help 👍

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Glad it helped! You're very welcome.

[@thobanimanzi]

Thanks for a nice lesson, can you also make a video about a safety relays, how to wire it and they actually work.

[@realpars]

Hi Thobani, Thanks for your support and sharing your topic suggestion with us! I will definitely go ahead and forward this to our creator team. Happy learning!

[@mahedihassan129]

Thank you ! concept is clear now.

[@realpars]

You are very welcome!

[@hosseinjabbary7763]

Thanks a lot. That would be very nice if you make more videos about processes in different industries.

[@realpars]

You are very welcome, Hossein!

[@coralyuchina8756]

Hello Hossein, we are the manufacturer of diffenert kinds of equipments, what's your Whatsapp number, you can add my Whatsapp: [phone] for more details, tks

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Very useful video 👌thanks for the post. 👏

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You are very welcome, Senthil!

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What a great compliment! Thanks for all your support.

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Fantastic Video ..Thanks for new knowledge

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You are very welcome, Ravi!

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Works like wonder. Thank you so much

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Glad it helped!

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Thanks. It was helpful,for my study.

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You are very welcome, Utsab! Happy to hear that.

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thanks lot dear teacher...........................it is very clear and best understanding with your passion of teaching............"may triple gems bless you" i am qualified B.Sc Mechanical engineer best of luck you......................

[@realpars]

Thank you!

[@tmkiitks]

Thank you for the information.

[@realpars]

You're very welcome!

[@RDarkMood]

boiler accessories and functions would be a great topic to build on this one :)

[@realpars]

Great suggestion! Thank you for sharing, I will happily go ahead and add that to the list. Happy learning!

[@kennyadesanya8116]

Well explained in simple terms such that even a 10-year-old will clearly understand. Excellent job!!

[@realpars]

Glad it was helpful! Thank you very much for sharing

[@mdbiplobmia6622]

This video is really Helpfull sir,,thanks a lot

[@realpars]

Glad to hear that! Happy learning

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great great great great great great great great great great great great great great great great great great video

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I am in engineering and your video gave me more basic info than my teachers thanks

[@realpars]

Glad we could help! That's an amazing compliment.

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This Is best for knowledge related to engineering. I like this.

[@realpars]

Appreciate your kind feedback!

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Nice topic.thanks for sharing!

[@realpars]

You are so welcome! Glad to hear that

[@MustafaAli-zn7zx]

Thanks

[@easygordonnn]

Thanks so much. Prior to this I did not know the difference between a boiler and water heater.

[@realpars]

Amazing to hear that our video course helped you understand. Happy learning!

[@boilermaster4133]

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[@Jai_ShriJagannath]

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Excellent breakdown

[@realpars]

Thank you very much!

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thank you, you are great!

[@realpars]

Thanks for your support, Mohsen! Happy learning!

[@JS-gu9rx]

Boilers need to be isolated by using an RP Backflow preventer at the water meter. This will ensure that the high pressure and use of corrosion inhibitors will not back pressure into the public potable water system . Thanks for the video!

[@realpars]

Great point! Thank you for sharing

[@aymanal-amoudi7664]

Thank you for this comprehensive basic explanation. Can you please do video for the maintenance of the boiler type.

[@realpars]

Thanks for your topic suggestion, Ayman! I will happily go ahead and share this with our course developers. Happy learning!

[@hectorenriquesantandermeza5208]

Good night RealPars. Good video! It deserves a like. It will be great if you can make a video related to heat exchangers. Greetings.

[@realpars]

Hi Hector, Thanks for sharing your suggestion with us! I have sent this over to our course developers. Happy learning!

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Good job

[@brd8764]

It is automation and heating up which means use of electricity at extreme level because many industries function in this manner and therefore it is needed.

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Well explained and understood

[@realpars]

Thank you!

[@bhesyangamau7983]

Thnks 4 informative!😃😉😊

[@realpars]

You are very welcome!

[@adebobolaadegbuyi9014]

Thanks so much, have learnt a lot. I'm from Nigeria, please how can I design one using firewoods. I want to use it to dry avocado past on a flat metal sheet. Thanks and God bless you for sharing this knowledge. Have subscribe immediately.

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Great video!! thanks for sharing

[@realpars]

You're very welcome!

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Nice video!!!!! Thanks for sharing.

[@realpars]

Thank you!

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Thank you so much my brother🌺

[@realpars]

Our pleasure!

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I learned thank you 👍

[@realpars]

Glad to hear it! Happy learning!

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Thanks Real Pars

[@realpars]

You are very welcome!

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Thank you...

[@realpars]

You are welcome, Derin!

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Thanks for sharing

[@realpars]

You're very welcome!

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Thanks sir your channel is best 👍

[@realpars]

You're very welcome, Jassi!

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Thank you very much

[@realpars]

You are very welcome!

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It's helpfully

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Great job and video

[@realpars]

Thanks a lot, Kenny! Happy to hear that.

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Thank you so much 🙏

[@realpars]

You're welcome!

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Thank you for this video sir

[@realpars]

Most welcome!

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Informative video.

[@realpars]

Thank you, Muhammad!

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thanks for your video

[@realpars]

Our pleasure, Sadaf!

[@Ratman_Bejo]

Nice steam boiler design friend

[@boilermaster4133]

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[@methuselahbwalya9981]

We are using coal fire tube boilers @ work for steam generation for process . Would you kindly make a video on the mobrey switches and pressure sensors attached to the boilers . Thank you

[@realpars]

Hi Methuselah, Thanks for the topic suggestion, I will definitely go ahead and forward this to our creator team. Happy learning!

[@thelz7909]

There are different types of pressure sensors. The mobrey switches are magnetic level switches are one of the types which satisfy boiler code requirements. If your drum water level gets too low and is allowed to remain that low the excess heat would cause a loss of containment and catastrophic failure, so instruments such as the redundant level switches are there to provide a signal that the burner management system can use to bring the boiler to a safe state.

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Also this is the best channel ever!

[@realpars]

Thank you, Christopher!

[@kherbouchekamel8697]

thank you

[@realpars]

You are very welcome, Kherbouche!

[@freefiregame424]

Excellent vedio please do make vedio for industrial cooling towers and chillers

[@realpars]

Thanks for your suggestion, Rutika! I will happily pass this on to our course developers. Thanks again for sharing

[@denv5221]

I always wanted to know how close loop steam turbine system works not all of it, but the part where the turbine is connected to the generator, which is out side or inside(i'm not sure) of the steam pipe loop. If the generator is inside the close loop system, when the steam turn back into water, it will get into the generator and you know what will happen. But if the generator is outside the steam pipe loop. The steam will leak out where the steam turbine and the generator are connected!? That means shortage of water in the water tank and will need refill over and over again. I raise this question coz I watch about steam turbine long ago and what I learn from it, if I'm not mistaken was that the steam that runs the turbine is cooled down and condensed back into water and is let back in the water tank! Thank you

[@rajeevdas5472]

Awesome... thanks a lot sir

[@realpars]

You're very welcome, Rajeev! Happy to hear that you enjoyed it.

[@OilandGasInformation]

It's nice information for beginner

[@realpars]

Glad you think so!

[@shahrakesh5983]

Nice information.good day.

[@realpars]

Thank you, Rakesh!

[@thebetaolo8267]

Informative

[@realpars]

Glad to hear that!

[@amiraboodi2075]

thank you very much it was very helpful and informative. 😉😊. please create videos about other components of power plants, too. like condenser, pump, cooling tower, smokestack,...

[@realpars]

Hi Amir! Thanks for your comment and your suggestion. I will pass this on to our course developers! Thanks for sharing and happy learning!

[@HOWILEARNRUSSIANLANGUAGE]

I like the explanation I am interested in knowing how to calculate boiler efficiency?

[@realpars]

The simple answer is [BTU 's OUT / BTU's IN] x 100%. That may seem easy, but it will require flow, pressure and temperature sensors to measure the quantities that go into determining the energy into and out of the boiler. In more detail: efficiency = [(lbs/hr Steam out x Enthalpy of steam in BTU/lb steam at operating pressure and temperarture) / (natural gas flow in SCFH x BTU/SCF natural gas at flowing pressure)] x 100%.

[@coreleck905]

Veri good class thanks

[@realpars]

Thank you!

[@rajeevrajpoot709]

Very good information sir

[@realpars]

Thank you, Rajeev! Happy to hear that.

[@Lombardi54]

Great video!

[@realpars]

Thank you!