Data Center HVAC - Cooling systems cfd

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.

Great information. Thank you

One work exceptional - thank you

why there are gas pipes for the outdoor unit of a water-cooled in-row unit?

Your content is so touching

Nicely explained-

Thanks

You are too fast in explanation, otherwise it is good !

This is an awesome video. Thank you so much for putting this together. It is very helpful.

Thank you Paul!

I hope you put an Arabic language as translation

Thanks for the video =)

Sir, you are explaining in much easier way but can you please explain what is basic of data center after that this critical one

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..

Wow, great work!!

Dear sir please. Make a video all in hindi ....

what the best hvac system design for data center

Would be good to see a video on static transfer switches 👍🏻

You have good application of Air conditioning systemapplied to all type of Area of location in a residential or commercial building.

👍👍👍

I find it funny that HVAC is for Aircons, where its been a very long Time the means of "High Voltage Alternating Current".

Very good video

This is also called CRAC (Computer Room Airconditioning) units.

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.

Why cant I see the VRF video? It's not available does it say..

Hey, im currently working on my assignment data center. Does anyone know how to select diffuser for floor raised.

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).

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.

What you described as a 'CRAC' unit is actually a 'CRAH' unit.

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.

Nice video

I work at JLL in facilities management your videos are really helpful.

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.

I found it realy helpful.

Can you provide me ppt presentation for like this without voice for 2 different topics?

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. I’m not saying this doesn’t happen, but I think with all the bad airflow just use a chiller with multiple air handlers. Thanks for the video.

Please make video on immersion cooling data center technology.

I'd like to know how fire suppression nozzle will be placed if there will be a ductwork for hot aisle containtment system?

Can you explain about relative humidity. Why it is important in precision AC and data center

This is helpful for my architectural thesis, thanks.

I just knew the hot isle containment.. 👍👍

May you share the Simscale design? :D

versatemp in a data centre, not very efficient

What are the sources for this video so I can do more research?

can i get HAP file for these room ?

I do this everyday this video is spot on great job you deserve my thumbs up

Hey Paul, the VRF video is missing. Can you upload this one again?