Search found 3554 matches
- Sun May 19, 2024 3:36 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Carnot was being too generous
- Replies: 20
- Views: 256
Re: Carnot was being too generous
Why would anyone pay for something that doesn't work? No. Indoctrinated does not equal educated. Education teaches to be skeptical, inquisitive, and comprehensive. Only the well educated would realize that. When (science) "education" has no basis in the real world. No empirical evidence t...
- Sun May 19, 2024 3:15 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's "Ambient Heat Engine" Experiment
- Replies: 186
- Views: 193476
Re: Tesla's "Ambient Heat Engine" Experiment
Towards the end of the Stirling's compression stroke the displacer is moving the gas to the hot side, and the regenerator is heating the gas. Your description is misleading. True, (in bold) but so what? https://stirlingengineforum.com/viewtopic.php?t=5556 You want all the heat you can get at TDC. C...
- Sun May 19, 2024 3:06 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's "Ambient Heat Engine" Experiment
- Replies: 186
- Views: 193476
Re: Tesla's "Ambient Heat Engine" Experiment
A turbo charged diesel engine uses an intercooler between the compressor and intake to the cylinder. Apples to oranges. The intercooler is to prevent OVERHEATING because the turbocharger is hot, being powered by exhaust gases. Different purpose, different application. In an IC engine you want dense...
- Sun May 19, 2024 2:03 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The Carnot efficiency problem
- Replies: 264
- Views: 119810
- Sun May 19, 2024 1:55 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The Carnot efficiency problem
- Replies: 264
- Views: 119810
- Sun May 19, 2024 1:02 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 222
- Views: 2970
Re: Tesla's Ambient Heat Engine revisted
For butane the vacuum side is below 1 atmosphere. To get to -30°C the vacuum would need to be about 0.5 ATM From looking at the specs of similar small vacuum pumps sold on Amazon, it looks to me like that might just be possible. Anyway, I don't see any major theoretical flaws in the design but the p...
- Sun May 19, 2024 10:43 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: The Carnot efficiency problem
- Replies: 264
- Views: 119810
Re: The Carnot efficiency problem
... When you have those two values, work out .. blah blah blah... We will reconsider your temperature anomaly. ... I could care less what you or "we" consider or don't consider. Your concerns are not my concerns. Do your own experiments. Seems like you have nothing better to do than gawk ...
- Sun May 19, 2024 10:33 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's "Ambient Heat Engine" Experiment
- Replies: 186
- Views: 193476
Re: Tesla's "Ambient Heat Engine" Experiment
Another thing I think happens is on the return stroke the air in the cylinder is compressed, maybe not to the extent that air is compressed in a fire piston, but the principle is the same. https://youtu.be/-39wmSBO2FM It seems strange that you have ignored that fact and are now attempting to conjur...
- Sun May 19, 2024 9:51 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 222
- Views: 2970
Re: Tesla's Ambient Heat Engine revisted
... I just have one more question, how does ipoo get -32 degrees C out of a chemical that boils at 10 degrees F, in a system that is running at atmospheric pressure? ... Funny how you believe the video can be easily faked by letting butane evaporate on the outside of the pipe, but can't believe the...
- Sun May 19, 2024 3:10 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's "Ambient Heat Engine" Experiment
- Replies: 186
- Views: 193476
Re: Tesla's "Ambient Heat Engine" Experiment
An Air-cycle refrigeration system works by: 1) compressing air 2) releasing the compressed air through a turbine or reciprocating piston engine to extract work from the air. A Stirling engine appears to do the same thing, or carry out the same process. Air is compressed in the cylinder. The air then...
- Sun May 19, 2024 2:21 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's "Ambient Heat Engine" Experiment
- Replies: 186
- Views: 193476
Re: Tesla's "Ambient Heat Engine" Experiment
... .. If Tesla was right , the ice in the pan on the left with the running engine on top should melt more SLOWLY than the pan on the right with a non-operational engine since the running engine is converting some portion of the heat trying to reach the ice into another form of energy. ... The only...
- Sun May 19, 2024 1:26 am
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 222
- Views: 2970
Re: Tesla's Ambient Heat Engine revisted
My my, there are even 0.85 volt peltier modules. How low can you go? They can also be "stacked" for greater ∆T and better heat separation. Also running them briefly gives better efficiency as each module can only create a certain ∆T, once reached they quit working, still consume power, but...
- Sat May 18, 2024 7:32 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 222
- Views: 2970
Re: Tesla's Ambient Heat Engine revisted
Just BTW, I sent for some of these little 6 volt 2 amp copper Peltier chips. Faster response time, better cooling. Compress_20240518_223413_3506.jpg https://youtu.be/zGS3HX8wIdg 12 volt even 9 volt charging for a little model LTD Stirling is a pretty tall order. 5 volts will be a challenge. Oooo... ...
- Sat May 18, 2024 6:54 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 222
- Views: 2970
Re: Tesla's Ambient Heat Engine revisted
According to Tesla's theory... If we first ran the Peltier module to cool the bottom plate. (Keeping it insulated of course, to preserve the cold). The engine could then run on the surrounding ambient heat, and with perfect insulation and a 100% efficient engine, it could run indefinitely. He recog...
- Sat May 18, 2024 6:30 pm
- Forum: Stirling and "Hot Air" Engine Forum
- Topic: Tesla's Ambient Heat Engine revisted
- Replies: 222
- Views: 2970
Re: Tesla's Ambient Heat Engine revisted
... BTW Tom, here's a tidbit I'll blow your way...I was born in Rochester, NY and lived on the Erie canal as a kid. So, let's just say that I'm more than familiar with the cocky know-it-all mindset that plagues the region. Well that explains a lot. I guess you should if you grew up there. I didn't.