Lithium Bromide Absorption Refrigeration System Explained

In a water-lithium bromide vapor absorption refrigeration system, water is used as the refrigerant while lithium bromide (Li Br) is used as the absorbent. In the absorber, the lithium bromide absorbs the water refrigerant, creating a solution of water and lithium bromide. This solution is pumped by the pump to the generator where the solution is heated. The water refrigerant gets vaporized and moves to the condenser where it is cooled while the lithium bromide flows back to the absorber where it further absorbs water coming from the evaporator.
The water-lithium bromide vapor absorption system is used in a number of air conditioning applications. This system is useful for applications where the temperature required is more than 32 degree F.

[@MechanicalEngineeringConcepts]

Hello friends..If you like this video please subscribe to my channel..It will be a real motivation for me to make more videos..Thank you

[@yashwanthkrishna7068]

can u upload Li Br four shells refrigeration system please

[@wastatustamil3663]

PPT Link

[@faizahmad4134]

Good Explanation Sir

[@roberttomsiii3728]

This is the first video I've seen with a complete list of parts included for how the system works. Most videos either exclude partial separation of Chambers pressure valves or the fact that there is a pressure difference between the high and low chamber

[@HritwRaje]

Best explanation I've come across. Precise and upto the point.

[@lifeorthogonal5087]

It was really helpful to split the water side versus LiBr plus how the chambers operate. Thanks!

[@rajahussaini8154]

I like u r way of teaching and fig also very simple and easily understood

[@hadisucipto3218]

very good explanation, I happen to work in a field that uses this type of chiller

[@tariganter6238]

Wasting Car Radiators Heat Instead of Using it for Air-conditioning Vapor cyclic refrigeration methods and systems are either 1. Vapor-compression refrigeration; 2. Vapor-absorption refrigeration (no compressor); or 3. Vapor-adsorption refrigeration (no compressor) In adsorption refrigeration, the refrigerant or adsorbate vapour molecules adsorb onto the surface of a solid instead of dissolving into a liquid. While in an absorption system, an absorber absorbs the refrigerant vapour into a liquid. Adsorption refrigeration also includes a generation process where refrigerant vapour molecules desorb from the solid. A variant of Vapor-absorption refrigeration is the Electrolux Refrigeration is also known as Domestic Eloctolux refrigeration or sometimes known as Three fluid Refrigeration as it uses three fluids for the cooling process which are ammonia, water and hydrogen. Hydrogen gas is used to increase the rate of evaporation and hence rate of cooling. No pump or compressor is used. The absorption cycle is similar to the compression cycle, except for the method of raising the pressure of the refrigerant vapor. In the absorption system, the compressor is replaced by an absorber which dissolves the refrigerant in a suitable liquid, a liquid pump which raises the pressure and a generator which, on heat addition, drives off the refrigerant vapor from the high-pressure liquid. Some work is needed by the liquid pump but, for a given quantity of refrigerant, it is much smaller than needed by the compressor in the vapor compression cycle. In an absorption refrigerator, a suitable combination of refrigerant and absorbent is used. The most common combinations are ammonia (refrigerant) with water (absorbent), and water (refrigerant) with lithium bromide (absorbent). Adsorption refrigeration was invented by Michael Faraday in 1821, even though the basis of artificial modern refrigeration dates back to 1748 with William Cullen experiments. Adsorption refrigeration technology has been extensively researched in recent 30 years because the operation of an adsorption refrigeration system is often noiseless, non-corrosive and environment friendly. In the early years of the twentieth century, the vapor absorption cycle using water-ammonia systems or LiBr-water was popular and widely used, but after the development of the vapor compression cycle it lost much of its importance because of its low coefficient of performance (about one fifth of that of the vapor compression cycle). Absorption refrigerators are a popular alternative to regular compressor refrigerators where electricity is unreliable, costly, or unavailable, where noise from the compressor is problematic, or where surplus heat is available (e.g., from turbine exhausts or industrial processes, or from solar plants), and in recreational vehicles that carry LP gas. It is also used in industrial environments where plentiful waste heat overcomes its inefficiency. So, Why we Waste Car Radiators Heat Instead of Using it for Air-conditioning? The heat energy in car radiators could eliminate the need for compressors and be used in the generator process in Vapor-absorption or Vapor-adsorption systems for car air-conditioning. It is better to utilize cars engines surplus heat using adsorption/ absorption systems low efficiency rather than waste energy into air, and using more energy to run compressors. Not only the World wastes cars’ heat but also consumes huge energy in air-conditioning and refrigeration in too many countries having high solar heat by using compression refrigeration wp.me/p1OEJz-1LZ Surely, you see my point. Do you have a reason for this waste?

[@shopeasy5114]

Thanks for the lecture sir 5 minutes made me understand the topic which i had be trying for 1 day to understand..

[@shaikhaweshali6256]

Very easily to understand...fully satisfied

[@srihari99]

Nice telling sir it will clearly understand to write the exam with out practice

[@rohankamble4186]

Very helpful video

[@scareye321]

You really saved my day sir.

[@kamleshgadhe6425]

Examp pt of view this is very beneficial for me sir ...

[@abhayraja1652]

Great explanation with easy diagram 👏

[@GAUTAMJAINBME]

The Solution is called weak because of its low tendency of absorbing the refrigerant and strong when its tendency of absorbing the refrigerant is high or we can say it has a high affinity for absorbent.

[@ariefsyahrizalu3842]

hey, thank u for the explanation. but I still got some questions. 1. does this device come with a rectangular shaped in common or circular ? what're the pros and cons between the two ? 2. either constructed in circular or in rectangular shape, what is the mechanism to separate of those two process inside one vessel (exp. abs-evap in low pressure vessel) ? do we need a separating wall and how do we install it inside the vessel ?

[@devendrareddy8974]

👍 explained clearly

[@ABHISHEKSHARMA-gj6xp]

Tomorrow is my exam u made me understand thanks

[@MechanicalEngineeringConcepts]

Happy that my video made you smile..Please share it with your friends..let it be useful for them too..Best wishes for your exams

[@stablebratkarthik3980]

Thank you Sir it helped My Exam😍😍

[@ashishyadav3947]

Thank you sir today is RAC exam.

[@MechanicalEngineeringConcepts]

Ashish Singh Yadav You are welcome.Please don't forget to subscribe..Best wishes for your exams

[@stablebratkarthik3980]

Today I have Exam

[@stablebratkarthik3980]

@ashish yadav

[@subkam007subkam6]

It was very useful for me sir

[@najim3170]

Thank you

[@mohammedsaifansaiyed2314]

Nicely explained it's helpful

[@rajapandiyan2362]

Thank you for explaination and plz give working of thermosyphon boiler

[@nega3ive.]

RAC tomorrow, thanx man

[@muhammadshahzad4705]

Good for the beginners

[@ansuman_007]

Kudos to the explanation ✨👌

[@shashanksingh7565]

You should really work on your script. I could understand everything but in most of the video you were stopping alot. This was making me anxious. In order to overcome this you should have a script in front of you before hand.

[@MechanicalEngineeringConcepts]

This is the best constructive feedback i have got so far..I will definitely rectify this issue in my upcoming videos..Thank you

[@PrathamBhatia]

Watch in 1.25X man.

[@Kumar_Sangam_Raj]

Thank you so much. Good explanation.

[@arjunyadav3547]

Best video

[@ABHISHEKSHARMA-gj6xp]

Great videos bro thanks

[@madapatiraviteja1292]

Good explanation I like it

[@myowns9804]

Very useful.thank you

[@sanjusinghchamyal5995]

great....

[@kushkhurana8275]

Good elaboration ty

[@harpindersingh7197]

Very complicated 🤯

[@MechanicalEngineeringConcepts]

Yeah..we can't do anything.This is how it works!!

[@nikunnjjain9259]

Very helpful.... Thank you!!!

[@simoncrooks7441]

Hi thank you for the presentation, Could you tell me what are the energy savings for running a Absorption refrigeration system in comparison to a geothermal heat pump system. Thanks Simon

[@Unknown-ry2rl]

Very nice

[@MechanicalEngineeringConcepts]

Thank you

[@gauravojha7229]

Excellent

[@sergiogalvez4603]

I have Salt lake land very large.This is private.Do you have solution can get Lithium from this Salk

[@deadskullgaming9125]

Nicee

[@ashwinpathak]

Can u tell me what amount of heat should be provided to generator such that water vapour is liberated

[@ACF11JULY24]

Thanks

[@MechanicalEngineeringConcepts]

Please subscribe and share it with your friends..Let it be useful for them too.

[@shivamparmar275]

Thankss sir g

[@MechanicalEngineeringConcepts]

Please subscribe and share it with your friends..Let it be useful for them too.

[@Saiyyan1]

Nice

[@anand3551]

hello sir, in our company we are using vapor absorption system chiller to cool the water, here sir we are using high pressure steam to heat lithium bromide, as we have 4 running chillers and we will use around 2 T for each and it will be 64 T for 8 hrs, but sir if we make one chiller down, steam consumption of chiller will rise around 80 T for 8 hrs, how could this possible even we have 3 chillers running and steam consumption is more compare to 4 chillers running

[@alimran4996]

What will be effective in terms of (Initial cost,maintenance,power consumption, life cycle) VRF or absorption chiller?

[@jaguaralmighty9755]

Thanks Sir 🙏

[@ghinwaaksamawati9989]

Please i want to ask you about the generator, if it increase the pressure or just the temperature thank you

[@ramzam2948]

based on what i know. it increases the temperature of the solution and by heating it you will also increase the pressure

[@AbhishekYadav-iw6tt]

instead of generator here we use the heating coil which works same as generator and heating the Li-Br solution to remove separate the water content from the solution.

[@user-ux9fo8dq2k]

Thanks buddy

[@abuzaforzipu4852]

Thank u sir. sir plz, let me the calculation of its heating capacity

[@sahilkashyap7525]

AWESOME

[@sandeepveeramallu6375]

Thank u

[@Zido123]

You are wrong at point weak solution and strong solution portion as we know more amount of refrigerator means strong solution, which is going from absorber to the generator is the strong solution as it has more refrigerant

[@rekhirubal]

plzz upload more videos sir ...

[@Pandey.763]

Sir if we are remove HTHE what will happend. How to place Solution in HTG. IF we are receiving hot water temperature 80'C (and over water boiling at 100'C than what is use of Hot water in LTG).

[@vaibhavsharma349]

what is logic behind using this cycle practically? we are heating water aur libr and than cooling it and again cycle continue in same manner so what is the use this cycle?

[@ramzam2948]

in my own understanding. it's more efficient because it uses low power consumption just by using pumps rather than a compressor from a simple vapour refrigeration system

[@osilytv]

How can I contact you.. I've real life problem building this

[@surajshinde1791]

Sir I am searching research on alternative of LiBr absorbent in VAM. You have any idea which types of new absorbent is beneficial than the LiBr

[@bhavaniprasaddaram8372]

Crazy

[@khadijabarhmi3709]

thank you for the video it is beneficial, can u recommend us about a book with exercises on LIBR

[@wastatustamil3663]

PPT Link

[@dhaneshelectrical8739]

Sir, I understand that water boils at 4 deg C in vacuum, but how does vacuum created in evaporator ? Pls explain.....

[@thezhino123]

El vacío dentro del evaporador se genera usando una bomba de vacío, que succiona por decir asi, el aire dentro del evaporador. Esto se debe de hacer el tiempo que tome en llegar a los 6mmHg de presión en la cual el agua llega a su punto de ebullición a 4°C. Esto se realiza al momento de arrancar el equipo.

[@ashwinpathak]

@@thezhino123 The vacuum inside the evaporator is generated using a vacuum pump, which sucks so to speak the air inside the evaporator. This is due to the time it takes to reach 6mmHg of pressure at which the water reaches its boiling point at 4 ° C. This is done at the time of starting the equipment TRANSLATION IN ENGLISH

[@arpitkumarrai3863]

I have one doubt sir how we can maintain the low pressure of evaporator.

[@justingrey6008]

By controlling the temperature

[@chintanvaghasiya1384]

Hello, Your description is good at all. But u can't mentioned any temperature and pipe material. So if u give me that required data then that is pleasure for me. So please help by giving some contribution for my project. Thank you.

[@challayogi5188]

Telugu explain plz

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Malayali analle😍

[@krb4552]

Hindi mai

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Mandad

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Hi sir telugu low kavale

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Tamil explain

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Mundu Telugu lo cheppu , taruvata ni brain lo vundey English vadu,...

[@chabuajha8924]

Ur concept is not clear.

[@ISHARENONSENSE]

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[@kidoo1567]

Fk.. Video unclear

[@wisnuindrawan6496]

Thank you

[@Zido123]

You are wrong at point weak solution and strong solution portion as we know more amount of refrigerator means strong solution, which is going from absorber to the generator is the strong solution as it has more refrigerant