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Since87: quote: Originally posted by Gooserider "There was an article ... that said the temp change for air going through a WC rad would be 2-3* C max..." Since87: Find the article and see what heatload that 2-3°C figure was based on. I'll bet it wasn't 414 Watts.
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Well, I've been searching, haven't found it yet, but here are some other things I found on Overclockers that appear relevant...
"Radiator System Resistance" This is the source for my assumption of 50% of rated fan performance.
"Pump-Off"
Commentary on the influence of system resistance on waterflow from pumps. (Note that I'm designing for a comparatively high flow volume.)
"Waterblock Bench Testing Results"
Discussion of waterblock testing.
"Water Cooling Flow Rate and Heat Transfer"
Zhentar, see the bottom part of this one, it addresses your comment about pump heat. (sorry, you got it wrong...)
"Measuring Airflow Resistance"
An interesting background peice on how airflow resistance is measured.
"Radiator Heat Dissipation Testing"
This is a primary info source, though a bit dated. It does it's measurements in BTU's, and I forget offhand how they xlate into Watts, but an interesting read. In terms of the rad that I'm using vs. this article; my rad is bigger than either the Serck or the Big Momma. It is the same type of construction as the BM, but is a single pass design which gives it low flow resistance like the Serck. Some crude testing w/ just the rad shows my pump can push about 6GPM through it, showing ~6' of head loss, out of a rated 14' head and 8 GPM flow )
It might also be worth reviewing the
Water Cooling Simulator Discussion message area here on Pro-Cooling, there is alot of good info there.
Gooserider