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Not to forget the boiling water it's been sitting over for three hours. Did you measure the temperature of that three hour old "boiling" water? The water was poured into a dewar double wall vacuum insulated flask, which by previous tests, filled with boiling water could keep a Stirling en...

Your power piston cylinder appears at a higher temperature than the top of the cold plate. I can only guess why from the information recorded. Work is certainly a factor to consider. What it read before running wasn't given to me. I would expect the top of the cold plate to not be changing temperat...

Not sure how you figure "hot" gas is expanding into the power piston. The cold gas, for the most part, is heated and expanded below the displacer as the displacer raises up and drives cold air down to be heated. Aside from that, we can generally say the gas does not actually heat up that ...

The way I look at it. If the cold side is 62°F and the power piston is 75°F from heat from friction, after three hours, since the two are in direct contact 62°F is likely the average temperature between the the power piston and the working fluid. Logically some heat from friction would be leaving th...

"Ah..., that doesn't apply to Stirling engines", I've been told again and again. If not, why not. The energy represented on a PV diagram depends on path, and the direction traveled on the path. The initial difference between a Stirling Engine and a Stirling cooler is the direction taken o...

Can we see some of your test results demonstrating the Carnot limit using properly calibrated thermal imaging? Thermocouples? Finger feel, "seems hot" readings? Anything? You, Carnot, Kelvin, Clapeyron, Clausius, Maxwell, Gibbs, Boltzmann, Joule, anybody? Has ANYONE verified this so-called...

You seem to have a double standard when it comes to questioning "science". You heap mountains of derision and impossible levels of independent replication and verification etc. etc. on my casual kitchen table experiments but YOUR supposedly established science Carnot/Kelvin "efficienc...

In the video where I pull back the insulation, the IR image and readings seem to indicate a clear division between the hot regenerator (87°F) and cold top plate (62°F) Compress_20240508_133713_3920.jpg The power cylinder is also near the forefront of the image, but this was the first video taken wit...

Maybe the engines I'm getting with the isolated pp will help to resolve the issue of how the pp is heating up?
Can the hot gas travel all the way up that metal stem without loosing heat along the way?

Also if the pp heats up while the engine is running on ice?

I'm still confused Tom. Why would the power piston NOT be warmer? Hot gas is expanding into it.. Not sure how you figure "hot" gas is expanding into the power piston. The cold gas, for the most part, is heated and expanded below the displacer as the displacer raises up and drives cold air...

... What I'm still trying to fathom is why your temperature IR camera, appears to have little experimental control. No known temperatures to read, ice, boiling. ... The camera was factory calibrated. I did tests when I got it. It seemed to read OK using ice, boiling water etc. For relative temperat...

There is an Australian(?I think) company getting into this hydrogen heat. Catalyst technology big time. https://youtu.be/qng_UEQSY04 https://youtu.be/3Lyfn5AooSg Articles I've found though say the catalyst used is "secret", proprietary, patented. Earlier in the previous above video he show...

There is a rather astonishing demonstration of a Stirling engine running on hydrogen gas. Or heat from hydrogen gas but without a flame. The outside of the displacer chamber is coated with some kind of catalyst. The demonstration is well into the video about 23 minutes almost at the end Here he's de...

The description of the regenerator found here: http://hotairengines.org/open-cycle-engine/wilcox-1860/wilcox-hot-air-or-caloric-engine Seems very different from what is depicted in the illustration above. The regenerator design is quite interesting in that it expands radially outward from the center...

One thing I haven't tried yet, I don't think, is running one of the modified LTD engines with a retrofit regenerator on ice/ambient heat. Well, I did once and the engine froze up, or something. Anyway, a slight modification of the drawing I posted earlier in the thread: Compress_20240507_135720_0200...