The Engineering Mindset brilliant videos, really break down each system and make it easy to understand the process of different plant equipment. Some videos on LTHW would be great though. Keep up the good work!
Thanks Arthur. This is probably one of our best videos to date. We've done a couple on LTHW heating systems, have you watched these? ruclips.net/video/lDeuIQ4VeWk/видео.html & ruclips.net/video/KU_AypZ-BnU/видео.html
Helping as an apprentice on an air cooled chiller. I'm watching this on my lunch break. This helped me understand what I'm seeing so much. Much appreciated! I love this channel!
Thanks for all of your videos, literally I have learned what is needed for HVAC through this channel only. After, completing my Bachelors in Mechanical engineering, I was searching for jobs, before facing interviews I have checked all your related videos so that I can face questions from the employer easily. I wish, universities can teach us like this so the basic visuals would be clear in our minds.
Thanks for the education on these chillers; it definitely helped me see more clearly; I’m starting to learn about air cooled chillers at my job as a HVAC facility maintenance technician where this type of study helps out a lot as far as operation
I wish during university times near theoretical lesson there were lessons like these ones, in my opinion these videos are brillant from a didactical point of view
Thank you so much: I think there is a small mistake here, correct me if I am wrong- The fluid entering the evaporator is air, not water as you mentioned in 13:29
No, as shown, refeigerant is passing through the evaporator and exchanging thermal energy with water, which is then pumped around the building to provide cooling. This is a chiller. If it was a small air conditioning unit, then it would be air.
It is a wonderful video to know the basics of Air cooled chiller. Thanks for the time given in explaining the working principles with animated video that clarifies the flow of chilled water.
Great video! Just wanted to add that FAHU are typically used in research labs and specific areas of hospitals. Well, at least here in the northeast U.S.
The air cooled chiller and absorption chiller links in the description are interchanged. Kindly update. Appreciate your help in explaining so well the intricate details of system operation.
Hi Paul. I'm just wondering why you put water pumps on the roof which technically is on top of the roof ? I guess is because it is the main water source before it is distributed into each AHU. The lowest AHU would get highest water pressure I assume.
air cooled chillers typically have the pumps installed on the roof close to the chillers and they push water through the evaporator. In this case I've shown each chiller to have its own smaller pump and then a large distribution pump set but its also very typical to have just one pump set forcing through the returning chilled water through both evaporators and then using an automated valve to control the flow to the chillers. Th manufacturer will specify which should be used. Yes the lowest point in the system will have the highest pressure due to the force of gravity on the mass of the water column
How is the air cooled chiller less efficient? For me the advantages override the non-use of latent heat exchange in the evaporator. 1- no cooling tower. 2- No condenser pumps 3- easy maintenance 4- easy fan replacement. 5- no dependence on water supply or water cost. 6- less chance of chiller surge. 7- less components to fail.
Sir Thanks for your great exposure that thrown to us and my doubt is,Is the refrigerant is flowing through the tube or shell in air cooled chiller,can you pls clarify that??
We covered this in the video, but typically on air cooled the refrigerant is in the tube. Have to check with the manufacturer though. We have lots of info here: theengineeringmindset.com/refrigeration/
So in the long run, the overall cost of this entire infrastructure rests on the building owner which seems like a lot of money vs the apartment resident buying an ac unit?
If you had an air cooled chiller circuit with all the AHU’s etc on primary side what would determine whether you pipe the chiller arrangement up in reverse return or just loop the flow and return?
Thanks for the video. I have 2 questions. why the pump is used on top of the building while the water will flow by gravity? second question, how the water in floors below the chiller is coming back up to the chiller without using a pump?
Thanks for the reply. In our design the pump is located on the roof, the same floor as the chiller, but it pumps the return water. Not the supply as illustrated in your video.
Thanks for your great explanation, but i have a question. what refrigerant usually used on an air cooled water chiller? i really need this for my assignment. Thank you so much
Can you elaborate on the part where you say air cooled chillers are less efficient because they don't use latent heat of evaporation. What do you mean by this?
Water cooled chillers will remove heat through water evaporation in the cooling towers. Air cooled chillers do not have this, they can only transfer their heat to the air through conduction and convection, maybe a little radiation too depending on the DT
My understanding is that when the temperature increases the pressure from the sensing bulb increases also causing the gas flowing through to decrease in temperature...... So my question is where is the sensing bulb located in the chillers system so it can read the temperature of the building
Hello sir , Nice Explanation, I have learned. A lot from this video but one thing in my mind is that chilled water return which is going to the evaporator coils is there any pipe contain seperately in the evaporator & Comes back to supply chilled water..!! In the evaporator is there any pipe contain seperately for chilled water supply & for chilled water return.
With little less to understand your question, There are two pipes in the evaporator; one is caring the refrigerant and the other has the water from and to the building. In the evaporator they only exchange heat. Please respond if i am not making it clear
The FCU/AHU's return line going to chiller's entering water line and chillers's leaving water line going to AHU/FCU's supply line. You can see only two pipe line in the chiller evaporator(shell and tube) , one is entering water pipe which coming from building and another pipe is leaving water pipe which going to the building. That's all.
⚠️ *Found this video super useful?* Buy Paul a coffee to say thanks: ☕
PayPal: www.paypal.me/TheEngineerinMindset
v nice videos indeed..keep it up sir.
The Engineering Mindset brilliant videos, really break down each system and make it easy to understand the process of different plant equipment. Some videos on LTHW would be great though. Keep up the good work!
Thanks Arthur. This is probably one of our best videos to date. We've done a couple on LTHW heating systems, have you watched these? ruclips.net/video/lDeuIQ4VeWk/видео.html & ruclips.net/video/KU_AypZ-BnU/видео.html
This is air conditioner?.
Helping as an apprentice on an air cooled chiller. I'm watching this on my lunch break. This helped me understand what I'm seeing so much. Much appreciated! I love this channel!
Thanks for all of your videos, literally I have learned what is needed for HVAC through this channel only. After, completing my Bachelors in Mechanical engineering, I was searching for jobs, before facing interviews I have checked all your related videos so that I can face questions from the employer easily. I wish, universities can teach us like this so the basic visuals would be clear in our minds.
This should have millions of views. Highly appreciate the efforts
I have so much confidence in Paul's presentation abilities that I always press that like button even before I watch the video :)
Thanks for the education on these chillers; it definitely helped me see more clearly; I’m starting to learn about air cooled chillers at my job as a HVAC facility maintenance technician where this type of study helps out a lot as far as operation
I wish during university times near theoretical lesson there were lessons like these ones, in my opinion these videos are brillant from a didactical point of view
I just keep proving to myself I’m a visual learner, I wish they had these videos with every lesson
I was trying to read and learn these systems over and over from books until I saw your videos. Great explanations and illustrations. Much appreciated.
Most helpful videos im filipino hvac technician facilicities for aircooled chiller thank you sir for sharing videos
do you work in the Philippines too? are air cooled chillers most common?
⚠️how to *CALCULATE CHILLER COOLING CAPACITY* here: ruclips.net/video/BZxXIdxVKeY/видео.html ⚠️
I’m so glad you explain sh-t 10 times more directly and quicker than other channels. Freakin thank you
Thank you for this wonderful, simple and understandable explanation.
I watch this series whenever I need to chill.
Lol good one pal, I like chill people like you 😉
Wait... you mean chill like chillers... and it is a common phrase for relaxing...
Thank you so much: I think there is a small mistake here, correct me if I am wrong- The fluid entering the evaporator is air, not water as you mentioned in 13:29
No, as shown, refeigerant is passing through the evaporator and exchanging thermal energy with water, which is then pumped around the building to provide cooling. This is a chiller. If it was a small air conditioning unit, then it would be air.
I big thank from my site. It's such the clear explanation.
Hello admin,
I saw your tutorials, its very helpful for me, clearing all basic fundamentals.
thanks for uploading uploading.
regards,
Vinay
Keep the good work engineering mindset
It is a wonderful video to know the basics of Air cooled chiller. Thanks for the time given in explaining the working principles with animated video that clarifies the flow of chilled water.
Great video! Just wanted to add that FAHU are typically used in research labs and specific areas of hospitals. Well, at least here in the northeast U.S.
moreover, like datacenters for positive pressure
Awesome video! Didn't know much about Chiller units and this video and all the others are tons of help! Thank You Engineering Mindset!!!
Check this video out for chiller application guide! ruclips.net/video/gYcNDT1d30k/видео.html
Yeah Sir quite impressive for humanity
The air cooled chiller and absorption chiller links in the description are interchanged. Kindly update. Appreciate your help in explaining so well the intricate details of system operation.
Notice the same... 😁
Thank you for taking the time to educate us.. much appreciated…
Hello sir, hopefully a lot of thanks for u.i understood the HVAC system through the our videos .ur videos useful to fresher and again thank u
Fantastic video, buddy. I'm a bms spark 👍
Very well explained
Thanks for the interesting information. What is the air velocity at the chiller fan outlet? What is the diameter of the chiller fan?
Huge thanks for your videos !
Very nice animation and good information
Outstanding Explaining topic 🎉
Thank you for this it is very informative. Can you explain more why water cooled chiller is more efficient than air cooled?
water cooled chillers use evaporation to reject heat in the cooling towers. air cooled do not have this ability
Check this video out for chiller application guide! ruclips.net/video/gYcNDT1d30k/видео.html
Water cools more efficiently than air.
It also takes more latent heat out of the system.
perfect love the way you explain thank you
Thanks for the video
Thanks alot for your kind explanation. This is very helpfull
Very good and easily understand, I like this and thank you very much.
Thanks for useful information
Excellent Work🤟
Awesome explanation this makes process instrumentation way interesting .
Wow that is so good
Very intelligent man. Many thanks! Great information!!!!
Great stuff, thanks mate ❤
very well and clear explained..nice video.
Very good material thank you
Awesome explanation with simplified animation. Great brother.👍🏼
非常专业的视频，感谢你
How can we thank this guy!?
EXCELENTE EXPLICACIÓN PARA EMPEZAR CONOCER LOS PRINCIPIOS DE LOS SISTEMAS DE LOS CHILLERS
The knowledge just keeps coming!
Great explanation. Thank you.
very good video thanks
Hi Paul. I'm just wondering why you put water pumps on the roof which technically is on top of the roof ? I guess is because it is the main water source before it is distributed into each AHU. The lowest AHU would get highest water pressure I assume.
air cooled chillers typically have the pumps installed on the roof close to the chillers and they push water through the evaporator. In this case I've shown each chiller to have its own smaller pump and then a large distribution pump set but its also very typical to have just one pump set forcing through the returning chilled water through both evaporators and then using an automated valve to control the flow to the chillers. Th manufacturer will specify which should be used. Yes the lowest point in the system will have the highest pressure due to the force of gravity on the mass of the water column
Very nice video
Thank u very this is really very educational and very well explained; easy to understand too... cheers
How is the air cooled chiller less efficient? For me the advantages override the non-use of latent heat exchange in the evaporator. 1- no cooling tower. 2- No condenser pumps 3- easy maintenance 4- easy fan replacement. 5- no dependence on water supply or water cost. 6- less chance of chiller surge. 7- less components to fail.
Sir Thanks for your great exposure that thrown to us and my doubt is,Is the refrigerant is flowing through the tube or shell in air cooled chiller,can you pls clarify that??
We covered this in the video, but typically on air cooled the refrigerant is in the tube. Have to check with the manufacturer though. We have lots of info here: theengineeringmindset.com/refrigeration/
Very wonderful sir have learned alot
So in the long run, the overall cost of this entire infrastructure rests on the building owner which seems like a lot of money vs the apartment resident buying an ac unit?
If you had an air cooled chiller circuit with all the AHU’s etc on primary side what would determine whether you pipe the chiller arrangement up in reverse return or just loop the flow and return?
you are the real MVP, sir!
Very good video. Thankx
Dear Paul, thanks for the great video. May I ask what Filter Drier is for?
Best video Best channel
Excellent explanation...
this type more common on our area, thx a lot
Thank you very much for sharing
Mate, great video. Thanks
wow nice video! I need to learn English with urgency!!!
Thank you very much, it is a fruitful video
Thank you so much.
Great thank you
If a chiller supplys FCU's with S and R does the AHU need the chiller S and R if the FCU's are supplied already?
thanks i learn alot from this viedo
Thank you for the video, animation and explanation is impeccable, thank you again
very good
Good sharing friend
Sir,
U explain very nicely and easy to understand.
Can u please expalin duct take off and duct installation.
Thanks for the video. I have 2 questions.
why the pump is used on top of the building while the water will flow by gravity?
second question, how the water in floors below the chiller is coming back up to the chiller without using a pump?
Push through a chiller otherwise if suction is too high it will damage the chiller. It is using the roof pumps to come back up
Thanks for the reply.
In our design the pump is located on the roof, the same floor as the chiller, but it pumps the return water. Not the supply as illustrated in your video.
Thanks for your great explanation, but i have a question. what refrigerant usually used on an air cooled water chiller? i really need this for my assignment. Thank you so much
Please see our advanced videos theengineeringmindset.com/refrigeration/
Usually cool is blue and hot is red, switching just makes confusion.... 10:17
Otherwise, great explanation!
Can you elaborate on the part where you say air cooled chillers are less efficient because they don't use latent heat of evaporation. What do you mean by this?
Water cooled chillers will remove heat through water evaporation in the cooling towers. Air cooled chillers do not have this, they can only transfer their heat to the air through conduction and convection, maybe a little radiation too depending on the DT
Check this video out for chiller application guide! ruclips.net/video/gYcNDT1d30k/видео.html
Hey Paul! Thanks a lot for the vids. I was wondering if the 3d models where available cause they would be a life saver for me
in 1:31 - did you say "they use latent" or " they don't use latent"?
because the transcript confused me
Very thorough and thoughtful works. Respect!
In air chillers,are evaporators outside the building?
Very helpful video. The chillers where I work have "flash" tanks and I don't really understand their purpose. Do you know what they are for?
Appreciate the way u explained ...thanks a lot...😊
Is this system a type of Central air conditioning system?
excellent
Please put video for air cooled chiller basic maintenance issue and how to solve..?
Try this video: ruclips.net/video/Zu0LVVNNVSw/видео.html
Great work bud!
Thank you
very nice
man
My understanding is that when the temperature increases the pressure from the sensing bulb increases also causing the gas flowing through to decrease in temperature...... So my question is where is the sensing bulb located in the chillers system so it can read the temperature of the building
That is where the controls game comes into play
Really nice very good way of explain nice
Both water to water and air to water use latent heat of evaporation.
Refrigerant leaving evaporator should be low temp low pressure superheated vapor.
Hello sir ,
Nice Explanation, I have learned. A lot from this video but one thing in my mind is that chilled water return which is going to the evaporator coils is there any pipe contain seperately in the evaporator & Comes back to supply chilled water..!!
In the evaporator is there any pipe contain seperately for chilled water supply & for chilled water return.
With little less to understand your question, There are two pipes in the evaporator; one is caring the refrigerant and the other has the water from and to the building. In the evaporator they only exchange heat. Please respond if i am not making it clear
The FCU/AHU's return line going to chiller's entering water line and chillers's leaving water line going to AHU/FCU's supply line. You can see only two pipe line in the chiller evaporator(shell and tube) , one is entering water pipe which coming from building and another pipe is leaving water pipe which going to the building. That's all.
Thank you so much, this helped me alot with my project work
perfecccccccccccct
thank you
bravo... impeccable work n explanation as always!