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Unread 06-26-2002, 09:49 AM   #15
Dix Dogfight
Cooling Savant
 
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Join Date: Aug 2001
Location: Stockholm Sweden
Posts: 128
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ZaVkE
I don't wan't to ruin your day and be a pessimist but have you done any calculations on this?

I did a rough calc and came up with this.
(all numbers are fabricated but represents a average of WC systems Iv'e seen on the net, take them with a grain of salt OK)

Lets say you run a normal wc setup with the water 5C warmer than ambient, with a 100W load. And you have a pump that gives you a flow of 5L/s. When the system runs at equilibrium the rad dups 100W into the air.

Since the rads ability to dump heat energy into the air is dependant on the temp difference it's ability to dump heat is much bigger in a fridge due to the bigger temp difference.

The same setup with the rad in a fridge with a 50C temp difference (lets go to the extreme). The same rad will then be able to loose 1000W of heat instead, (OK I'm extrapolating the rads behaviour linearly and this is not the case in the real world but it will show you what I'm talking about).

5C => 100W
50C => 1000W

A water flow of 5L/s and loosing 1000W of heat gives you a temp difference of: 1000/(4180*5)=0.05C

To sum it all up: This rad in the fridge will produce a tempdifference of 0.05 degrees celcius from the time the water enters the rad untill it exits.

If you build a bong that is so good at cooling, that it is able to lower the temp of the water to the same temp indifferent of what heatload you throw at it then the fridge is a bad idea.

However if the bong is totally worhtless then the rad in the fridge will take ower as main cooling device and really lower the temp. As a normal rad does when it operates in the room. Yours in the fridge will only have a slight advantage due to the colder air.
This of course puts your fridge to the ultimate test, and I don't think it's good enough to stand for 2 172W pelts , a GF3, chipset and 2 Hdd's.

But hey I might be wrong after all.

cheers
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Last edited by Dix Dogfight; 06-26-2002 at 09:51 AM.
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