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Unread 07-09-2002, 02:40 AM   #31
gmat
Thermophile
 
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Join Date: Mar 2001
Location: France
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Yes. And another thread shown overall pressure has no influence on cooling abilities.

Quote:
Originally posted by nemaste
P*V=n*R*T
Bingo that's the formula i've been using... (not telling this time, or ppl would accuse me of posting lots of math garbage)

Quote:
Originally posted by nemaste

you need to ignore the water volume & consider only the gas volume because your teacher said so a while back .
We were *also* counting water expansion. If we say the air is heating as well (to keep it simple, let it raise 5°C) i'm not sure it will change anything... Maybe 2 fly farts ?

Quote:
Originally posted by nemaste

i would also consider the resistance of the system from inlet to outlet of the pump, the inlet has reduced pressure & the outlet has elevated pressure. the pressure drops mostly when it passes through waterblocks, so the pump outlet line sees the most pressure. restrictions along with large air volumes would dictate the pressure safety factor required for a cooling system's tubing, clamps, etc...
Air has nothing to do there... Restrictions, pump-induced pressure, etc. come from the flow of water.
Besides a large air volume trapped in the circuit (for ex. in a big res) would not compress more (less volumetric change due to water but more due to heat - i.e. nothing).
Again the thread was about captive air creating pressure - and i hope we shown one hadnt to worry about that.
Pump induced pressure and restriction induced local pressure are what one needs to worry about (along with water weight itself), they're far greater.
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