Quote:
Originally posted by murray13
And since water has a limited amount of thermal energy it can absorb per mass you need more mass to move more heat (without a phase change).
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Yeah, but look at the differentials that you see in water cooling. 23 gph carries a 75 watts heat load with a delta-T of 1°C.
If you ignore the energy of the pump (and some people continue to argue that pump energy is irrelevant, sheesh), you would simply have a 1/x relationship between flow rate and delta-T, essentially independent of actual water temperature. What would change versus "heat transfer efficiency" is the bulk water temperature. As flow velocity drops and "h" tanks along with it, the bulk water temp must go up to maintain the heat transfer.