Stirlingengineforum.com

I'm going to tell you a little secret. Your opinions here aren't better than anyone else's. Eliminating people out of disrespect or administrator interaction is not helping this site. Just remember that other people being wrong is no reason to disrespect them. Your actions here are very disrespectfu...

... 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 ...

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.

A turbo charged diesel engine uses an intercooler between the compressor and intake to the cylinder.

The capillary tube is the "orifice". It's diameter and length must be sized to the pressure difference, and flow rate. Longer and narrower for lower flows and higher pressure drops. Shorter and wider for higher flows an lower pressure drops. Higher pressure drops are needed for higher temp...

Tom, how about some simple old world math where eff = output/input as in simply measure work out vs heat in ? No waterfall, tug o' war, or calculus req'd... I think we've already discussed a number of perceived problems in doing that. How to get a verifiably accurate measurement of heat "in&qu...

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...

... 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...

True. It won't even help if you get just faith. Money maybe. But building a perpetual motion machine, probably nothing will help. But I want one, so please build one. "He further reasoned, that when heat did need to be removed from the "cold hole", it could be taken out "by its o...

And maximum efficiency can be identified by the temperature difference between hot and ambient. And cold and ambient. Depending on work and heat travel directions. Real engines will be worse. Glad to be back on the subject of this thread, "Tesla's ambient heat, generated cold hole, perpetual mo...

TK motors has some DIY small motors that are quite interesting.
.
https://m.youtube.com/@tkmotors991/videos

Steam engines are easier but require constant attention baby sitting the boiler.

Pause the video at 8:05 and inspect the coils. The smaller tube is completely frosted up. Weird. The larger coil has hot and cold spots signifying uneven cooling. How is that accomplished on a heat conductive copper pipe with claimed even cooling happening inside. It's a fake. Why was the video stop...

Actually, no, it doesn't. Evaporative cooling requires mass removal. Evaporative cooling requires air flow to carry the water away. The mass carries away the heat. Neither are happening inside that system. The vapour compression cycle requires a pressure difference between boiling, and condensation....

Fine. Since you and ipoo know so much more about refrigeration than anyone else go ahead and make one. Let us know how that works out for you. 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 press...

Here is a real DIY refrigerator. It has an explanation for temperature drop verses orifice. Ten feet of 1 mm tube for a larger pump. Those little butane ones need a much much smaller hole or longer capillary, and even then unlikely to get claimed temperature drop at all. https://m.youtube.com/watch?...