Stirlingengineforum.com

That final paragraph seems to involve a major mis-understanding on somebody's part (possibly mine) - it certainly seems to describe an 'over-unity' machine. There is a somewhat strange phenomenon relating to compressed air. If you, say, use 10,000 joules of energy to compress air it will release 10...

This might be interesting to experiment with. About $200 on eBay. Nice to see Tesla turbine/generators becoming available anyway. Rated as 50 to 100 watt. Compress_20240523_120109_9621.jpg Again, not a recommendation. I have no experience with the product or the sellers. It may be junk, but this is ...

Oh, one other thing I guess. A complete refrigeration cycle for cooling is actually mostly a heating process. Not "heating" by adding heat but making hotter by compression. That is, the gas or air is first compressed to make it hot. The gas gets hot in the pipes and then the pipes are cool...

I recently found an old dirt devil vacuum powered brush head attachment. It has a squirrel cage style fan blade and a belt drive to a brush head. It has a surprising amount of torque. Just for fun I hooked it to the vacuum and ran it up for a few minutes loaded and unloaded while checking temperatu...

... Again, I go back to my very simple question of does the isolated room reach 0k if all the rocks are lifted.... Ignoring realities, such as air liquifies, then freezes, before reaching 0°K making such a scenario impossible, in principle, running a heat engine using the heat in the room to lift r...

Anyway, contrary to what "fool" suggests, that I don't report my failed experiments, in actuality nearly all my experiments are failed experiments. I started out thinking I would demonstrate that a heat engine would overheat and stall if the heat flow out of the engine was blocked by insul...

... In this way, I am more realistically suggesting that a 100% efficient heat engine dumps 100% of the supplied heat energy to a sink at a degraded temperature. ... Not in my opinion. That would be a violation of conservation of energy. 100% of the supplied heat going to work AND 100% of the heat ...

The way I would phrase this, assuming the heat is not in fact destroyed, by any other means than direct thermal transfer, is that the same heat energy, if it could be recycled at 100% efficiency , would produce its equal amount of work over and over again. If you were asking me, first of all, isoth...

I'm done with this discussion as well. You have your opinion, I have mine. If I did not think there was a chance the butane fridge would work, I wouldn't bother sending for the parts to replicate it. I've been studying refrigeration and air conditioning since taking 2 years of small engine and appli...

Well Tom you said it yourself. If the answer to my question violates the laws of thermodynamics, then it is certainly outside of tradition. Well, I don't know how much more mainstream you can get than an AI Overview: Compress_20240522_105443_3860.jpg There is no issue when it comes to the first law...

This; https://physicstasks.eu/2179/work,-pressure-and-heat-of-the-air-during-isothermal-expansion Already cited and many other similar examples, online discussions regarding isothermal expansion and the conversion of heat into work seem applicable to your question. At least from a theoretical and ma...

Stroller wrote: ↑Tue May 21, 2024 5:24 am It's the action of the expanding gas "consuming" energy that I am interested in. Is internal energy really reduced when the gas expands, other than by conduction losses to the surrounding colder surfaces of the engine. And if so, how exactly? The ...

Your anticipated response is why I gave you your thread back, obviously. Kindly stay away from mine. Thank you. You claim your example, as a Stirling cycle, is "MORE relevant to thinking about DIY Stirling engines". It bears no resemblance to a Stirling cycle of any kind, theoretical or p...

Stroller wrote: ↑Wed May 22, 2024 12:41 am
.... My example is more relevant to thinking about DIY Stirling engines, ...

Your example is crap, obviously.

You asked. Sorry, if they are incongruent with yours. This is an open forum. Call my knowledge "superior" isn't helping you or me. Your knowledge and mine are equal in that our points are based on what we have learned. I as well as you and others here try to learn things from others, and ...