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... If instead one third stays at 300k, could that energy be used up to bring the other two thirds to 200k and 400k, respectively? And if heat can be destroyed, will the room eventually reach 0k as all the rocks are lifted? I don't know what you mean there (,highlighted in bold) "used" ho...

For heat to be removed from the cold end, by the working fluid, it must have an _average_ temperature throughout the cycle, that is below that of the cold end. It's easy to postulate that the working fluid temp might drop below that temp briefly, but I'm really struggling to see how it could be bel...

Here is your basic Stirling engine refrigeration cycle:
Fairly simple and straightforward.

While expanded and cold near BDC the working fluid is moved down.

While compressed and hot near TDC the working fluid is moved up.

But you can't preserve a cold hole by pumping ambient temperature air into it, which is what the proposal amounts to. How so? No air is pumped into the ice or whatever "cold hole". .... As the hot gas expands and drives the piston, with 100% efficiency. All the heat is converted to work. ...

Amazing your arrogance thinking your barely comprehensible ramblings and opinions constitute "TRUTH". Like some centuries old obsolete equation based on Caloric theory, that equates all the complexities of efficiency in all heat engines to a water wheel is "TRUTH". Let's try this...

This isn't some proposal for some new "perpetual motion" engine or some such thing. It's just how Stirling engines actually work. But a "real" Stirling engine is supposed to have a regenerator, which helps keep the hot and cold sides separated. So in this experiment I added a reg...

Here is a description of the first two stages of a Carnot cycle. The Carnot Cycle The Carnot cycle consists of the following four processes: A reversible isothermal gas expansion process. In this process, the ideal gas in the system absorbs qin amount heat from a heat source at a high temperature Th...

In an arrangement as shown previously; Compress_20240427_222542_2565.jpg First the displacer moves down the cold air is pushed up to be heated. Compress_20240429_201803_3828.jpg As the gas is heated and expands, the ice is covered and protected from heat, insulated from the heat by the displacer. As...

That is not a low temperature differential engine. Running an engine with an alcohol flame, and or, a propane torch and room temperature, is not a low temperature differential. That's a fallacy or gross misconception. It is the chart you provided. It clearly shows temperature rise from about 10° be...

Stroller wrote: ↑Mon Apr 29, 2024 1:05 pm Apologies Tom, I was just making an 'over unity' joke.

But you can't preserve a cold hole by pumping ambient temperature air into it, which is what the proposal amounts to.

How so? No air is pumped into the ice or whatever "cold hole".

... You constantly leave so much out and fail to have energy direction correct. "More like 100 are converted to momentum." Because 400 are pushing out, 300 in, for 100 J. "The piston continues moving using up 100 "homunculus power" of momentum which allows another 100 to be...

Why is the cooling of the gas that results from work output so underestimated and undervalued, often as if it is not a factor at all. Because a heat engine runs on a pressure differential, it ain't a thermo couple. ... Then why is it called a "heat engine"? Anyway, a drop in temperature i...

Very good points Stroller, and Matt. Tom, work comes out of the gas during expansion, dropping the temperature of the gas. You pay lip service to the FACT, which is, of course, undeniable. But you don't seem to really believe it. Work goes in during compression, raising the temperature of the gas. ...

If heat is being converted to work then that should be easily measurable as a torque at the flywheel. But for all the Watts of heat thrown at the hot side of the engine, we see tiny numbers of fairy lights being illuminated by weeny flywheel driven dynamos. Conclusion: getting heat from blowtorch i...

Matt, IMO, seems to be our resident agent saboteur. I suppose he considers it his patriotic duty to protect US oil interests or something.