[H-GEN] 'refridgerated' server rack

[RB]

You could put a fan plate in with several large slow turning fans which 
would pressurise above or below the 2U rack and give the airflow 
required at a much lower noise level.

Ron


Mick wrote:
> [ Humbug *General* list - semi-serious discussions about Humbug and     ]
> [ Unix-related topics. Posts from non-subscribed addresses will vanish. ]
>
> On Thu, 9 Dec 2010 13:02:31 +1000
> Nick Kwiatkowski <nickolas at au1.ibm.com> wrote:
>
>   
>> Mick wrote on 09/12/2010 11:12:48 AM:
>>
>>     
>>> The thought crossed my mind that I might be able to develop and
>>> simple unit that could chill the cabinet less expensively.
>>>
>>> Any thoughts?
>>>
>>>       
>> I had a similar issue with the external unit for our A/C for our
>> home. Ended up with a sound barrier around the unit that did make a
>> difference. My comment on that was there are different types of sound
>> materials and if not install correctly - the material will just
>> capture and transfer the noise to something else to reasonate.
>>
>> If you are ok with the cooling itself - ignoring the noise. You could 
>> consider sound cancellation. Since you are in a contained area it is 
>> likely to be effective. Basic principle is phase reversal -- termed
>> as active noise control -->
>> http://en.wikipedia.org/wiki/Active_noise_control
>>
>> My thinking was along the lines of pulling apart a noise cancelling 
>> headset and amplifying the speaker output.
>>
>>
>>     
> The noise is a by product of the cooling problem and the x345 being a
> 2U rack mount box, everything is packed in tight and there is only room
> for very small fans that have to run hard to push the air through.
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