I was glad to see Skulemate's numbers. Can you tell us more about the pump?
myv65: I hope that you don't still believe that all the power applied to a pump turns into heat. To answer your question directly, the energy that results from the pump is by inducing movement to a mass, in this case a body of water. Your question should be: where does the energy go when the pump is turned off, and as the coolant stops circulating?
No, turbulent coolant flow does not create a significant amount of heat, nor does rubbing against the tube walls. Heat does get transfered through the tube, but since it is vinyl, which is a great isolator, the amount transfered is negligeable.
I still maintain that the heat that a pump induces in the coolant is from its own motor coils.
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