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The engine starts out at 300, atmospheric. 100 heat is added. The expansion stroke starts at point 2, 400. If all the processes are to be adiabatic after that, the complete cycle will end back at point 2, Qhz, V2, T2, and P2, which is 400. The only way back to 300 at that point, is to reject 300 un...

Fool wrote: ↑Sun May 05, 2024 5:05 pm ...If all the processes are to be adiabatic after that, ...

After what?

Sounds like the piston hasn't gone anywhere yet.

The engine starts out at 300, atmospheric. 100 heat is added. The expansion stroke starts at point 2, 400 ... This is already inherently contradictory. Needless to say, I haven't read any further. Is there a point 1 ? How do you get from point 1 to point 2 without expansion? What do you mean by &qu...

... Once the volume of gas can transfer more energy than the body of the engine itself, then IMO, conclusions can be drawn. Bingo, you nailed it again. What does the transfer rate through the engine body or working fluid have to do with the accuracy of IR camera readings? Or anyone's ability to dra...

Pulling a vacuum on a plugged syringe requires an input of work, the gas inside expands doing work for an adiabatic temperature drop. The work input by pulling, plus the work output by the gas, are both absorbed by the atmosphere, changing it negligibly, storing the energy as a spring. The springin...

BTW, I just sent for two of these: Compress_20240505_164820_0963.jpg If there really is no heat getting through, putting two of these together, cold bottom plates adjoined. They should, in effect, refrigerate each other, helping keep each other's cold sides cold. Since they would be sandwiched toget...

Sorry, that was the wrong video, still in my clipboard from the last post. Not sure why it wasn't updated. Anyway, this is the video of the engine with the "compartment" intended for running it on ice. https://youtu.be/cR31i09PnNQ I had been running the engine with ice previously. So perha...

Hey Tom have all your below ambient results been with an acrylic hot plate? I just realized that and it explains why my engine with metal plate always heat soaks the cold plate. I know the metal hot plate is way overkill for these small ltd engines and have been meaning to test a plastic hot end. S...

... I don't think the majority of the elevated temperature of the power piston and cylinder is due to friction. If it was, the engine would have stopped. I think it's due to them being made of materials which pass heat more readily than the acrylic plastic and aerogel. ... Compress_20240504_125427_...

Tom, in the name of science I spray painted half of a Pyrex bowl flat black and tested with the thermal gun at room temperature and after hot water exposure. There was no discernable difference except for a small variation where the paint transitioned to clear glass. I also tested a piece of black ...

150° temperature difference between boiling water on the hot side and 60° ambient air on the other seems sufficient to see some heat flow across a 3/4 inch displacer chamber, unless something were holding it back or taking the heat away or both. In the video you linked, you'd placed a scalpel scall...

If only I could afford the shipping I'd take your junk off your hands for you. 12kW of solar energy costs no more than time and effort, plus some space blankets and ingenuity, Over at my petite ruine in France I have many 20' lengths of 2" bamboo to lash up a parabolic framework with. And an a...

I'm a lazy engineer. I don't stuggle to make sense of tiny temperature differences with comparatively big error ranges for unusable power outputs when I can play with bigger projects. If I were you, I'd be spending this part of the year making parabolic mirrors and stocking up on free tube and reba...

So you think this "finickyness" selectively shows power pistons glowing red/white hot with adjacent cold plate readings indicated by dark purple/blue how or why exactly? Because the IR camera uses the full palette of colours for whatever range of temperatures/reflectivities/emissivities a...

Tesla at least saw through the Carnot caloric theory nonsense 200 years ago. It seems he failed to share the secret of longevity with anyone before he died in 1943. :laugh: Oh, you got me. Not 200 years. A mere, what was it around 1900 when he wrote the article? In the article he said he was contem...