Re: How much pump is enough? How much is too much?
Efficiency would indicate what electrical energy is wasted, some of which is going to be expended as heat, part of which may or may not end up in the cooling loop.
The pumping action is, IMO, the main source of pump induced heat. It can be calculated as a function of flow and pressure. In fact, you can calculate the heat induced this way, for each element within a loop, all of which will add up to the pressure differential at the pump inlet/outlet.
Maybe someone still remembers the formulae?
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