Data Center HVAC - Cooling systems cfd
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Date: 2023-11-17
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Comments and reviews: 17
George
Data centers are always expanding, they often don't take into consideration the added heat load. They just keep pushing in more racks. One solution was a manifold piping system over head, with quick connects. You just place fan unit cooler on top of the new data rack and hook up the quick connect flexible refrigeration lines that's it. The main cooling unit has a large reservoir to accommodate multiple fan units. It was years ago when I helped install the manifold piping system, and I can't remember what it was called. Maybe someone knows the system name.
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Data centers are always expanding, they often don't take into consideration the added heat load. They just keep pushing in more racks. One solution was a manifold piping system over head, with quick connects. You just place fan unit cooler on top of the new data rack and hook up the quick connect flexible refrigeration lines that's it. The main cooling unit has a large reservoir to accommodate multiple fan units. It was years ago when I helped install the manifold piping system, and I can't remember what it was called. Maybe someone knows the system name.
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Matt
Great video! I don't know if I am the first to nerd out on this video and pick it apart like a troll, but you incorrectly call a computer room cooling unit (10m: 44s) connected to chilled water system a CRAC but its actual a CRAU (Computer Room Air Handling Unit. There is no AC (Air Conditioning) when using a chiller so I get it and using the term Crack is a generalization. If I am building a project and we have chilled or condenser water in the computer room I start to worry about a new set of issues, computer and water don't mix.
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Great video! I don't know if I am the first to nerd out on this video and pick it apart like a troll, but you incorrectly call a computer room cooling unit (10m: 44s) connected to chilled water system a CRAC but its actual a CRAU (Computer Room Air Handling Unit. There is no AC (Air Conditioning) when using a chiller so I get it and using the term Crack is a generalization. If I am building a project and we have chilled or condenser water in the computer room I start to worry about a new set of issues, computer and water don't mix.
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Apokalypz
Side note, if the CRAC unit is using chilled water then it's typically called a CRAH (computer room air handling) unit. This is due to not having the compressor or majority of the work to cool being actually IN the unit like it is with a CRAC unit. With CRAH's the compressor doing the most work is typically in the upstream chiller or heat rejection equipment of similar type and function.
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Side note, if the CRAC unit is using chilled water then it's typically called a CRAH (computer room air handling) unit. This is due to not having the compressor or majority of the work to cool being actually IN the unit like it is with a CRAC unit. With CRAH's the compressor doing the most work is typically in the upstream chiller or heat rejection equipment of similar type and function.
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Ryan
This is a cool video, but I work for a big commercial refrigeration and HVAC company in Arizona. I have never seen this. We do all the work for Century link in Arizona. They only use chillers or rtus. Im not saying this doesnt happen, but I think with all the bad airflow just use a chiller with multiple air handlers. Thanks for the video.
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This is a cool video, but I work for a big commercial refrigeration and HVAC company in Arizona. I have never seen this. We do all the work for Century link in Arizona. They only use chillers or rtus. Im not saying this doesnt happen, but I think with all the bad airflow just use a chiller with multiple air handlers. Thanks for the video.
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Jonathan
Awesome video and very well put together. I currently work in constructing data centers and this video is perfect for anyone who wants to learn how this building gets cooled. I hope to see more videos coming from you explaining the electrical side such as how the power gets distributed from transformers to generators to Ups, PDUs etc.
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Awesome video and very well put together. I currently work in constructing data centers and this video is perfect for anyone who wants to learn how this building gets cooled. I hope to see more videos coming from you explaining the electrical side such as how the power gets distributed from transformers to generators to Ups, PDUs etc.
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Eric
Loved it. I'm part of the DDC division of an HVAC company, and I want to thank you for all the informative videos that keep me learning, but also helped me get the job. Currently I am working on a 1, 000, 000 sq ft data center project that is truly a feat of engineering. Love my job. Thanks, again.
Eric
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Loved it. I'm part of the DDC division of an HVAC company, and I want to thank you for all the informative videos that keep me learning, but also helped me get the job. Currently I am working on a 1, 000, 000 sq ft data center project that is truly a feat of engineering. Love my job. Thanks, again.
Eric
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Dr. Andy
This video is particularly applicable to me.
Modern HPC clusters often have power consumption in the MW range and often uses liquid cooling for CPUs GPUs and RAM, these usually consist of a local liquid loop with a heat exchanger linked to a secondary loop fed from the building chilled water system.
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This video is particularly applicable to me.
Modern HPC clusters often have power consumption in the MW range and often uses liquid cooling for CPUs GPUs and RAM, these usually consist of a local liquid loop with a heat exchanger linked to a secondary loop fed from the building chilled water system.
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Mahdi
Thank you sir.
1. Are data center can work on partial load like residential unit? Are there any load variations on a server room?
2. In free cooling method without plate heat exchanger, is there any limitation for moisture for electronic devices?
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Thank you sir.
1. Are data center can work on partial load like residential unit? Are there any load variations on a server room?
2. In free cooling method without plate heat exchanger, is there any limitation for moisture for electronic devices?
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education
All of these are junk. I run several crappy black pipes 7ft under ground for 200ft and pump in 48F air into my greenhouse and room year around. Can't get more efficient than 1 fan.
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All of these are junk. I run several crappy black pipes 7ft under ground for 200ft and pump in 48F air into my greenhouse and room year around. Can't get more efficient than 1 fan.
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education
With regards to the DC Energy Consumption ratio: I think its best to allocate 50% of power on HVAC and 36% on IT Equipment (10% on Network Devices and 26% on Server and Storage.
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With regards to the DC Energy Consumption ratio: I think its best to allocate 50% of power on HVAC and 36% on IT Equipment (10% on Network Devices and 26% on Server and Storage.
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Ask
Can you please help us to understand the effect of unfiltered or generated gases due to heat. what are the effects and how can we tackle the issue.
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Can you please help us to understand the effect of unfiltered or generated gases due to heat. what are the effects and how can we tackle the issue.
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Samuel
You have good application of Air conditioning systemapplied to all type of Area of location in a residential or commercial building.
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You have good application of Air conditioning systemapplied to all type of Area of location in a residential or commercial building.
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Asif
Sir, you are explaining in much easier way but can you please explain what is basic of data center after that this critical one
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Sir, you are explaining in much easier way but can you please explain what is basic of data center after that this critical one
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Carlo
I'd like to know how fire suppression nozzle will be placed if there will be a ductwork for hot aisle containtment system?
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I'd like to know how fire suppression nozzle will be placed if there will be a ductwork for hot aisle containtment system?
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Brent
I find it funny that HVAC is for Aircons, where its been a very long Time the means of High Voltage Alternating Current.
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I find it funny that HVAC is for Aircons, where its been a very long Time the means of High Voltage Alternating Current.
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Suleman
The picture at 0: 17 is not a recommended way for stacking racks, it should be like Cold-Cold front or hot-hot front.
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The picture at 0: 17 is not a recommended way for stacking racks, it should be like Cold-Cold front or hot-hot front.
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Mirul
Hey, im currently working on my assignment data center. Does anyone know how to select diffuser for floor raised.
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Hey, im currently working on my assignment data center. Does anyone know how to select diffuser for floor raised.
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