Portable aircon

[Vodka]

What a timely thread. I was actually looking at online ads for a portable A/C. But I have a different use case.

With summer here, I'd like to cool my IT "cupboard"-type cabinet at home. It's around 1.5 x 1.5 x 1.2 meters (W x H x D) or just roughly 3 m³ in volume.

All equipment (3x servers, switch, monitor, AP, and other ancillary components) consumes around 250W, ±20%. That roughly translates to around 850 BTU/hr of generated heat. In fact, just within the month, one of the servers which is installed quite near to the ceiling crashed showing an amber health LED indicating that it has preemptively shutdown due to overheating. Moving the server is not an option so I will have to cool down the whole space during the summer.

I am looking into designing a small A/C out of automotive A/C components. Does anyone (or do you know somebody) who has ever succeeded in fabricating such?

why car a/c? afaik your typical car a/c compressor is a lot more powerful than a typical window-type a/c. why not just rig up a small 0.6HP window type?

or do watercooling for the processors

[oj88]

why car a/c? afaik your typical car a/c compressor is a lot more powerful than a typical window-type a/c. why not just rig up a small 0.6HP window type?

or do watercooling for the processors

a. The cabinet is nowhere near a window. It's in an 'island' between my living room and dining area

b. Watercooling is likely to be ineffective as the ambient temp in the IT cabinet can reach close to 37°C. Two of my servers are only rated at 35°C max. ambient temp, and as mentioned previously, the one on top gets the brunt of it. Also, beyond the CPU, I can't watercool everything... RAM, chipsets, hard drives, etc.

This is the ambient temp reading for the last 36 hours in the area where the server in question is located. Notice that even during the wee hours of the morning, the temp barely goes below 34°C. It only goes down whenever the living room A/C is running.



This is the actual picture of the setup, taken a few minutes ago.

[Vodka]

how about putting your entire servers into a chest freezer then run it at a fairly warm settings, dunno if that's possible though...

but i'm really interested on how to crank a car a/c compressor. but for different reasons

[oj88]

how about putting your entire servers into a chest freezer then run it at a fairly warm settings, dunno if that's possible though...

but i'm really interested on how to crank a car a/c compressor. but for different reasons

It's more like taking the chest freezer to my IT cabinet.... but you get the idea.

At this point, I think building an A/C using water dispenser/cooler parts will probably be more viable. If it can lower the ambient temp by so much as 5 degrees, I'll be happy.

[Yatta]

It's more like taking the chest freezer to my IT cabinet.... but you get the idea.

At this point, I think building an A/C using water dispenser/cooler parts will probably be more viable. If it can lower the ambient temp by so much as 5 degrees, I'll be happy.

How about enclosing the servers in a closed cabinet and then make some piping/ducting work from another/remote AC unit?

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[Vodka]

It's more like taking the chest freezer to my IT cabinet.... but you get the idea.

At this point, I think building an A/C using water dispenser/cooler parts will probably be more viable. If it can lower the ambient temp by so much as 5 degrees, I'll be happy.

you got high ambient temps in the cabinet coz the CPUs/GPUs heat everything inside. so if you could watercool them then mount the radiators far away you'd drop the ambient temps inside the cabinet. you simply have to run 2 thin hoses. very neat. low power consumption too. i got lots of experience w/ watercooling from my overclocking days...