Search found 3506 matches

by Tom Booth
Thu May 16, 2024 10:03 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 174
Views: 2415

Re: Tesla's Ambient Heat Engine revisted

Is anyone familiar with these inline high pressure fuel pumps? Compress_20240516_124949_9044.jpg Designed for cars with fuel injection. Up to 125 psi MAX. Flow rate 135ltr/hr @ 3bar (35 gal/hr @ 45 psi) Maximum pressure 8.5bar (125 psi) Seems like more than enough pressure. From what I read somewher...
by Tom Booth
Thu May 16, 2024 9:13 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Kontax KS90v thermal experiments
Replies: 1
Views: 21

Re: Kontax KS90v thermal experiments

One down: https://youtu.be/b8ExVO1WIwc Sounds a bit scratchy to me. Not sure why. This doesn't really seem to be a "heat of your hand" engine. At least I couldn't keep it going on just heat of my hand. It's a fairly warm day though, and it hasn't been broken it at all yet. Runs beautifully...
by Tom Booth
Thu May 16, 2024 6:56 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Kontax KS90v thermal experiments
Replies: 1
Views: 21

Kontax KS90v thermal experiments

This is going to take a while:
Kontax-KS90V.jpg
Kontax-KS90V.jpg (242.43 KiB) Viewed 21 times
by Tom Booth
Thu May 16, 2024 5:56 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Carnot was being too generous
Replies: 15
Views: 188

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 those that can't be bought. Only the well educated seems capable of seeing through their veil of lies, and self delusion. By ...
by Tom Booth
Wed May 15, 2024 9:56 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 174
Views: 2415

Re: Tesla's Ambient Heat Engine revisted

Tom can you unpack that? How would it work without an orifice? I didn't say it would work "without an orifice". Fool claimed: They don't even have an acceptable orifice. Didn't make or install one. Pretty obviously he doesn't recognize common refrigeration components, even while watching ...
by Tom Booth
Wed May 15, 2024 6:45 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 174
Views: 2415

Re: Tesla's Ambient Heat Engine revisted

Fool wrote: Wed May 15, 2024 4:51 am ...They don't even have an acceptable orifice. Didn't make or install one.
...
Case in point.

Apparently you don't know much about refrigeration.

Anyway, I'm adding this to my projects list. The more of these little butane refrigerators
I see, the more convinced I am it can work.
by Tom Booth
Tue May 14, 2024 9:09 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 174
Views: 2415

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 &quo...
by Tom Booth
Tue May 14, 2024 3:13 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 174
Views: 2415

Re: Tesla's Ambient Heat Engine revisted

-32°C with a 9 volt battery?

https://youtu.be/26uq_qHKRjU

I think I'd have to see it to believe it.

The guy does seem to understand air conditioning systems though.
by Tom Booth
Tue May 14, 2024 2:11 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 174
Views: 2415

Re: Tesla's Ambient Heat Engine revisted

The power supply to run that little freezer was allegedly, just 2A Compress_20240514_164949_9056.jpg 24 watts for an alleged nearly instant -30°C in open air. I guess I'm probably wrong, but that doesn't seem like that high of a bar for a small Stirling engine. 4 watts from this setup: https://youtu...
by Tom Booth
Tue May 14, 2024 11:44 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 530
Views: 27991

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

... Instead, re-framing "100%" efficiency seems more productive imo. The problem I have with the "Carnot Limit" calculation is that it "reframes" efficiency within its own definition of efficiency. First you add say 1,000 joules or whatever. Any sane reckoning of effic...
by Tom Booth
Tue May 14, 2024 9:37 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: The TRUTH? η = 1 – (Qc / Qh) = 1 – (Tc / Th)
Replies: 530
Views: 27991

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

Tom, The "absolute zero" thing is a core part of the definition of efficiency for a fuel-powered engine - if the exhaust is at any temperature above absolute zero then there is energy being wasted. It's a particularly poor definition for Stirlings, with the many possible energy sources, b...
by Tom Booth
Tue May 14, 2024 8:37 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Carnot was being too generous
Replies: 15
Views: 188

Re: Carnot was being too generous

Good stuff. The fact is that anyone, myself included, trying to beat Carnot is going to have to present rigorous testing and all inclusive data to back up the claim, and that's just to get taken seriously in the first place. Then comes the naysayers and all the rest. Not really. Nobody cares a lick...
by Tom Booth
Tue May 14, 2024 8:06 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Tesla's Ambient Heat Engine revisted
Replies: 174
Views: 2415

Re: Tesla's Ambient Heat Engine revisted

As far as I can tell, this video appears to be legitimate. https://youtu.be/g5uFyf9_1GM At least the simple refrigeration system appears to be constructed using conventional refrigeration system principles. The question is, could the cold produced be used to operate a Stirling engine on the surround...
by Tom Booth
Tue May 14, 2024 1:44 am
Forum: Stirling and "Hot Air" Engine Forum
Topic: Entropy
Replies: 9
Views: 107

Re: Entropy

Entropy. The thermodynamics definition boils down to: S = ∆Q/T ... The equation appears to be incorrect, or at least there is some debate about it: One person says the correct form of the equation is: ∆S = Q/T Another says: ∆S = ∆Q/T Someone else: T∆S = ∆Q https://www.quora.com/How-was-the-entropy-...
by Tom Booth
Mon May 13, 2024 3:42 pm
Forum: Stirling and "Hot Air" Engine Forum
Topic: Entropy
Replies: 9
Views: 107

Re: Entropy

Temperature is a measure of the average kinetic energy of the particles in a sample of matter, expressed in terms of units or degrees designated on a standard scale. So, kinetic energy transferred to the thermometer bulb. But Joules are also representative of energy transfer. So this is all about e...