Quote:
Originally posted by killick
... An engine is just a big heat pump. ...
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Oops... sorry... had the terms heat engine and air pump goin' round in my head at the same time... <sigh> been a long day.
An automobile engine is a heat
engine not a heat
pump. You
can think of it as an air pump, however w.r.t. back pressure.
The rest of the post still applies.