Search found 3555 matches

by Tom Booth
Mon May 20, 2024 3:38 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Carnot was being too generous
Replies: 21
Views: 257

Re: Carnot was being too generous

This is a diagram of the 12.5-kW Stirling convertor built by Mechanical Technology Inc. (MTI) Resize_20240520_054933_3508.jpg As can be seen it incorporates a heater and cooler virtually sandwiched together on either side of a regenerator of modest extent. In other words, it is not only possible, bu...
by Tom Booth
Sun May 19, 2024 3:36 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Carnot was being too generous
Replies: 21
Views: 257

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...
by Tom Booth
Sun May 19, 2024 3:15 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's "Ambient Heat Engine" Experiment
Replies: 186
Views: 193478

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...
by Tom Booth
Sun May 19, 2024 3:06 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's "Ambient Heat Engine" Experiment
Replies: 186
Views: 193478

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...
by Tom Booth
Sun May 19, 2024 2:03 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: The Carnot efficiency problem
Replies: 264
Views: 119810

Re: The Carnot efficiency problem

Fool wrote: Sun May 19, 2024 11:36 am ...Your actions here are very disrespectful of people that are trying to understand, ...
You're obviously not "trying to understand" anything.
by Tom Booth
Sun May 19, 2024 1:55 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: The Carnot efficiency problem
Replies: 264
Views: 119810

Re: The Carnot efficiency problem

Sorry,
Fool wrote: Sun May 19, 2024 11:00 am "..." (Blah blah blah blah) "..."
(edited for noteworthy content)
by Tom Booth
Sun May 19, 2024 1:02 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 222
Views: 2975

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...
by Tom Booth
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 ...
by Tom Booth
Sun May 19, 2024 10:33 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's "Ambient Heat Engine" Experiment
Replies: 186
Views: 193478

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...
by Tom Booth
Sun May 19, 2024 9:51 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 222
Views: 2975

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...
by Tom Booth
Sun May 19, 2024 3:10 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's "Ambient Heat Engine" Experiment
Replies: 186
Views: 193478

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...
by Tom Booth
Sun May 19, 2024 2:21 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's "Ambient Heat Engine" Experiment
Replies: 186
Views: 193478

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...
by Tom Booth
Sun May 19, 2024 1:26 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 222
Views: 2975

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...
by Tom Booth
Sat May 18, 2024 7:32 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 222
Views: 2975

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... ...
by Tom Booth
Sat May 18, 2024 6:54 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 222
Views: 2975

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...