Am 07.10.2011 20:23, schrieb Jed Rothwell:
Peter Heckert wrote:

BTW, if the heat exchanger is inside the housing of the e-cat, then its energy loss is zero,

That can't be. That would violate CoE. All heat exchangers lose heat. If the heat exchanger is inside the housing, that means the housing is hotter and radiates more heat than it would if there were no heat exchanger inside it. It does not matter where you put the thing must produce heat.

I politely ask to disagree.
What I mean is, if the heat exchanger is inside the housing, then the outer surface is unchanged. So the thermal resistance to ambient air and the thermal infrared radiation to ambient is unchanged.
So in this case the heatexchanger does not cause /additional/ energy loss.

I know, you will not believe me. Ask an expert for thermal machines.
I am not an expert, but I know how to calculate cooling dissipators for power transitors and so on, based on the data that is given by the manufacturers. Have done this many times successfully and measured temperatures afterwards.
I think, I have basic understanding.

Best,

Peter

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