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Subject: Re: modeling a water cooling system
Date: Tue, 22 Oct 2002 19:24:22 GMT
NNTP-Posting-Date: Tue, 22 Oct 2002 19:24:22 GMT
Mark Hathaway wrote:
> Howdy people,
> I'm in need of some help in modeling a water cooling system I'm mid
> way through designing. The system will be used to cool four audio
> see here: http://www.passdiy.com/pdf/sonofzen.pdf
> Each amp will have about 700 watts of heat to be dealt with. Water
> cooling is the only way, ambient temperatures get too hot in
> Australia for 1) comfortable room temperatures with ~3kw of heat and
> 2)heatsinking to keep mosfets and resistors in their SOA assuming an
> ambient temperature of 30-40 deg c is just out of the question, so
> water cooling it is.
> Where I'm stuck is data for how much heat a small car intercooler or
> motor bike radiator could move assuming fan forced air with the
> usual large computer power supply style fans.
> Looking at a commercial heat exchanger example
> http://www.thermacore.com/heatex_lahx.htm shows watt/deg c numbers
> that I'd never imagined before. Where the data falls down is how
> much air flow and water flow is required for such high watt/deg c
> Ideally I'd like to use a decommissioned car intercooler or two (or
> motor bike radiator, would like to keep it aluminum). Anyone able to
> point me to data or examples of achievable deg/c numbers for such a
> heat exchanger?
> Thanks for your effort,
> Mark Hathaway
Mark, water blocks for your system would have to bee customed made.
Cold plates with peilters is another route you could test to cool the
water blocks coolant other than just a radiator.
Regards and God Speed,
The Magic is in the Magician not the wand!
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