Search found 3594 matches
- Wed May 22, 2024 10:19 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 612
- Views: 29700
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
... 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...
- Wed May 22, 2024 7:07 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 612
- Views: 29700
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
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...
- Wed May 22, 2024 6:26 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 612
- Views: 29700
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
... 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 ...
- Wed May 22, 2024 3:07 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 612
- Views: 29700
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
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...
- Wed May 22, 2024 9:09 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 232
- Views: 3451
Re: Tesla's Ambient Heat Engine revisted
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...
- Wed May 22, 2024 8:01 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 612
- Views: 29700
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
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...
- Wed May 22, 2024 7:39 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 612
- Views: 29700
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
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...
- Wed May 22, 2024 7:05 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 612
- Views: 29700
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
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 ...
- Wed May 22, 2024 6:56 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 612
- Views: 29700
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
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...
- Wed May 22, 2024 2:38 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 612
- Views: 29700
- Tue May 21, 2024 9:29 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The Carnot efficiency problem
- Replies: 270
- Views: 119927
Re: The Carnot efficiency problem
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 ...
- Tue May 21, 2024 9:10 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's "Ambient Heat Engine" Experiment
- Replies: 202
- Views: 193937
Re: Tesla's "Ambient Heat Engine" Experiment
Apparently I need further clarification. Sorry. You are going to ridiculous, bizarre extremes to "prove" my statement that compression generates heat of compression during compression is "misleading". Just because heat is also added due to displacer motion is irrelevant to the f...
- Tue May 21, 2024 8:50 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
- Replies: 612
- Views: 29700
Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
...The link you sent left out what accomplished the expansion. It states clearly: "heat supplied to the gas". Also: "work performed by the gas " Perfectly clear IMO. "Heat supplied to the gas" "work performed by the gas" Anyway, this is VincentG's question to...
- Tue May 21, 2024 2:11 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The Carnot efficiency problem
- Replies: 270
- Views: 119927
Re: The Carnot efficiency problem
Driving posters away opens the door for new posters to which your job, as educator, starts up at the beginning. As I've tried, you have identified an anomaly that bares further investigation. But it still may fit nicely into 200 year old and current theory. Your methods of discourse here suffer fro...
- Tue May 21, 2024 1:35 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's "Ambient Heat Engine" Experiment
- Replies: 202
- Views: 193937
Re: Tesla's "Ambient Heat Engine" Experiment
As you like to point out the "heat of compression" is "instantaneous" so it stops when the volume change stops. The gas is being pushed through the regenerator to the hot space at the fastest rate. Compression is zero. Delta energy from compression is zero during this period. So...