[H-GEN] 'refridgerated' server rack

[Neil Scott]

On 09/12/10 11:12, Mick wrote:
> [ Humbug *General* list - semi-serious discussions about Humbug and     ]
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>
> Has anyone on the list ever explored the idea of "refridgerating" a
> server rack.
>
> My IBM X345 server has an array of of 8 double 1.5" fan units that have
> 3 speed settings with corresponding noise levels (endurable, jumbo
> flying low and overloaded C5A galaxy taking off).
>
> I made a sound insulated cabinet to reduce the noise level but it was
> only marginally successful, upto a room temperature of 26C the fans are
> ok but when the temp exceeds 26c the fans bump up to the 2nd speed and
> I am coping grief over the running cost of the a/c to keep them cool.
>
> The thought crossed my mind that I might be able to develop and simple
> unit that could chill the cabinet less expensively.
>
> Any thoughts?
>
> mik
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>    
When you say refrigerate, do you mean like build an insulated panel 
enclosure with temperatures inside like a fridge or do you mean an air 
conditioned cupboard with normal office conditions (around 24 degrees)?

The reason I ask is because if you make the conditions cold (i.e.; less 
than 22 degrees) you are in danger of causing moisture to condense on 
the equipment due to temperature difference and moisture levels in the 
air. The opposite can also happen if you have cold conditions and not 
enough moisture which causes static. For not so critical equipment and 
only really ever idling along most of the time I would suggest running 
air conditioning at 24 or 25 degrees. This will keep running costs down 
for the air conditioning and keep computer fans on low

-- 


Cheers

Scotty