Stirlingengineforum.com

... @Tom - Yeah that is unfortunately how I feel about the SE industry in general, a lot of claims; not a lot of long term verified performances . .... It seems there was. With Stirling Technology Company, Infinia, NASA etc. up until around 2010. Then something put the kibosh on things (for the dom...

Let me ask you fool. Do you doubt that evaporative cooling (using water) can reduce the temperature of the air? i.e. "swamp cooler". Why, OMG, how is that possible! Water boils at 212°F !!!!! You couldn't possibly use evaporating water to cool below 100°C !!!! Evaporative cooling with wate...

... 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...

... @Tom - Yeah that is unfortunately how I feel about the SE industry in general, a lot of claims; not a lot of long term verified performances . .... It seems there was. With Stirling Technology Company, Infinia, NASA etc. up until around 2010. Then something put the kibosh on things (for the dom...

Runs on ice quite nicely also. A lot quieter.

https://youtu.be/VF19ue3XMsQ

When I lifted the engine out of the bowl some of the wet ice cubes adhered to the bottom. Pretty obviously not due to "refreezing". So there goes that theory.

Another point worth mentioning, a capillary tube type fixed orifice allows the system to equalize when the compressor is off. Having the system pressure equalized at startup in such a tiny low pressure system means zero high pressure at start up, so a low torque pump/compressor is all that is needed...

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/watc...

...But it is such an obvious falsehood that I could have missed it by inclusion of the other misdirection pointless video, such as bending of the coils and such. Common magic trick misdirection techniques. ... OMG! The coils are bent, for the same reason the coils are bent in a still. To save space...

Tom, if they were more efficient than a Joule Thompson refrigerator, wouldn't they all use them? Solid state, freon less, noiseless. No they are less efficient. https://www.rigidhvac.com/blog/compressor-based-cooler-vs-thermoelectric-cooling-peltier https://en.m.wikipedia.org/wiki/Thermoelectric_co...

Tom Booth wrote: ↑Thu May 16, 2024 2:35 pm ...

Unless like MikeB you didn't even watch the video(s).

Sorry, that was VincentG who mentioned he hadn't watched the videos.

Unless, of course, you don't understand how it works. Then it might seem like it. Tom, you constantly, change the subject from some scientific point, "no orifice", to an attack on the person, "Pretty obviously he doesn't recognize common refrigeration components, even while watching ...

The eBay ad for those engines says 15 Watts.

Something doesn't add up.

Does this look legit to you guys? https://www.youtube.com/watch?v=ziZYVbLnSdM Looks way low to me. I can get nearly that much out of one of my small model engines with a cheap coin size generator. A big engine like that should be able to produce much more. Most likely they are using an automotive a...

Well, I'm undecided, personally. Just because something can be faked doesn't necessarily mean that it is in all cases. As James Randi said, of course, but, the explanation of how to fake it is probably more likely than the explanation that it works by magic. A simple, small refrigeration/heat pump ...

Take a bicycle pump, extend it, and block the outlet orifice with your finger. Push the pump handle in and feel the warmth on your finger where it covers the outlet orifice as the air is compressed. That's kinetic energy being converted to heat. No let go of the pump handle. It is forced outwards b...