Search found 329 matches

by Fool
Tue May 14, 2024 6:21 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Stirling essex - beta or gamma ?
Replies: 19
Views: 6804

Re: Stirling essex - beta or gamma ?

All betas are gammas, but not all gammas are betas. Alphas are different, and similar.
by Fool
Tue May 14, 2024 6:19 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 168
Views: 2210

Re: Tesla's Ambient Heat Engine revisted

Super charging. Same thing. Getting more air and fuel into the burn chamber. The engine must be sized and designed to handle the extra heat, otherwise the extra heat just gets blown out the stack. Higher internal gas pressure is one design parameter that helps here. Don't know what increased buffer ...
by Fool
Tue May 14, 2024 6:11 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Does a medium sized SE exist that could charge 12 V car battery properly?
Replies: 9
Views: 7995

Re: Does a medium sized SE exist that could charge 12 V car battery properly?

Battery charging works best at amperages reflecting the capacity of the battery. Car batteries at around 10 amps. 2 is considered a finishing or equalizing charge rate. Less would be a "trickle charge", at best. Trickle charge isn't usually enough for a good charge. Furthermore, lead acid ...
by Fool
Tue May 14, 2024 5:55 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 517
Views: 27491

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

I find it odd that people accept a COP of 300 or 400 for a real heat pump, when the Carnot COP is 600 and 800. But have great revulsion to the same Carnot engine getting 16.67% or 12.5%, when a real engine gets 8.333% or 6.25%. It seems like a big incentive to cherry pick, or just plain deny simple ...
by Fool
Tue May 14, 2024 5:22 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Carnot was being too generous
Replies: 14
Views: 158

Re: Carnot was being too generous

It's funny how an "offer that can't be refused", leaves all those inventors, poor, discredited, often I'll, and followed by ever becoming more stubborn fools.

Only the well educated seems capable of seeing through their veil of lies, and self delusion.
by Fool
Tue May 14, 2024 5:15 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Entropy
Replies: 9
Views: 100

Re: Entropy

Entropy IMHO is more easily thought of as uselessness of heat, and or dispersion. The same amount of heat at a lower temperature is more useless, higher entropy, lower pressure, larger volume. Able to do less work. Can't heat up your coffee, warm you in the winter, melt an ice cube. Temperature need...
by Fool
Tue May 14, 2024 5:02 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Entropy
Replies: 9
Views: 100

Re: Entropy

https://en.m.wikipedia.org/wiki/Entropy Entropy is defined by calculus specifically a differential equation. The following is a line from Wikipedia: "So we can define a state function S called entropy, which satisfies 𝑑𝑆 = (𝛿𝑄rev)/𝑇 ." This when integrated on both sides becomes S=∆Q/T . Bu...
by Fool
Tue May 14, 2024 4:44 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 168
Views: 2210

Re: Tesla's Ambient Heat Engine revisted

Nothing I've seen is more obviously faked than those garbage cooler unit videos. Nice try. There are scads of them too. The amazing thing is how many people those fraudulent videos seem to fool. Take a look at how uneven the coils develop frost and location of first frost. How little an amount "...
by Fool
Mon May 13, 2024 12:01 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Carnot was being too generous
Replies: 14
Views: 158

Re: Carnot was being too generous

Thanks.
by Fool
Mon May 13, 2024 11:59 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Entropy
Replies: 9
Views: 100

Entropy

Entropy. The thermodynamics definition boils down to: S = ∆Q/T Energy transfered, Joules, divided by Temperature, Kelvin. Both being real values therefore, Entropy S is a real concept and value, too. The following link does a fairly good job of introducing entropy. https://m.youtube.com/watch?v=DxL2...
by Fool
Fri May 10, 2024 6:11 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 168
Views: 2210

Re: Tesla's Ambient Heat Engine revisted

Scientific studies have found 'belief' to be unreliable and has zero effect on experimental outcomes. Please don't take my word for that. Take meticulous data. Scientific/mathematical rigor is the only thing that will expose error. Even if a small amount of gas remains in the cold side of the engine...
by Fool
Fri May 10, 2024 5:25 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 517
Views: 27491

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

Excellent. I wish you the best on that. Is it part of the, Martin Tajmar's group at the Dresden University of Technology? I heard rumors they are working on similar EM devices.
by Fool
Thu May 09, 2024 6:29 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 168
Views: 2210

Re: Tesla's Ambient Heat Engine revisted

Here is another test. Fill a syringe with air. Place it in a vacuum. Measure the pressure by seeing how much weight it takes to depress it slightly. Cool it. See if it contracts. Measure again to see how much weight it takes to compress it the same small amount. Prediction: Nine tenths (9/10) (340 K...
by Fool
Thu May 09, 2024 5:46 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 168
Views: 2210

Re: Tesla's Ambient Heat Engine revisted

Then you also can't prove contraction, since the experiment proves pressure. Contraction and pressure are opposites. If one exists, the other can't. There is always pressure, even the vacuum of space has a ever so slightly positive pressure. Putting ice in the oven does prove freezing. Ice melts whe...
by Fool
Thu May 09, 2024 5:38 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 517
Views: 27491

Re: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)

Work is put back in. Gets converted to heat. Picks up some of the rejected to cold sink heat. Puts both out onto the hot source.