Jones Beene wrote:
Stephen

If there are violations of the second law waiting to be employed, I think we can be reasonably sure they won't use either heat pumps or heat engines as their "prime movers".

Not to put words in anyone's mouth, but I think what you meant to say was:

"If there are violations of the second law waiting to be employed, I think we can be reasonably sure they must employ an operational methodology which may benefit from - but does not depend solely on - the physics of heat pumps or heat engines as the "prime mover".

Uh, yeah, I think that's what I meant.

Anyhow the point was that the derivations of the second law that I've seen start with a mathematical model of a heat pump. Consequently, if 2LoT applies to _anything_, it surely applies to heat pumps!

As with classical magnetism versus magnetic motors, if you're looking for OU behavior in heat pumps, you're looking for a flaw in the model -- in other words, you're looking for a demonstration that the model and reality don't agree. As such, mathematical modeling to plan the experiments is unlikely to be of much value, as the models used are exactly the models which predict that you can't win by using that approach.


Jones

And even then, as many have posters have been stating for years, it would be wise to leave the LoT completely out of these discussions, as there are too many ways in which those laws can be interpreted (or salvaged) for them to be meaningful in any helpful way to an experimenter.

Like you-know-who - they are what they are - but can NEVER really be invalidated, as they are re-interpretable in so many semantic ways.


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