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This is one of the weirdest things I've ever seen in a long time. https://youtu.be/KBtv3skwfDw?si=ERtnPAMnkI7nvjuo Copy,/paste from my YouTube description: All the "wet thermoacoustic" or so-called "rice" heat engines I've seen have been made of metal. I wanted to see what was go...

Tesla recognized heat was energy, but bought into the idea that heat was "compelled" to "flow" into a "cold hole", so likely wasted much of his life trying to create a "cold hole" so he could just sit back and let the heat flow "down", then extract &...

You could be right about all that. In regard to all of science and especially religion: "The first principle is that you must not fool yourself and you are the easiest person to fool." Richard P. Feynman https://en.m.wikipedia.org/wiki/Everything_You_Know_Is_Wrong I don't know if your the...

So what happens when heat is added to a gas in a confined space with a moveable wall (piston)? Add enough energy to cause one gas molecules to "jiggle around" more vigorously. This additional "jiggling", since the chamber is sealed, has nowhere to go but may transfer if molecules...

Hey Fool, don't you think this is a better starting premise...since Carnot refers to compression cycles (tho hasn't been beat by non-compression cycles) how about SIMPLY n=(Wpos-Wneg)/Wpos, therefore when Th=Wpos and Tc=Wneg, then n=(Th-Tc)=Th edit: n=(Th-Tc)/Th Yikes, missed that big time, but you...

I'm okay with heat being a form of energy passing from hotter to colder. I am not comfortable with internal energy being called heat. Something hotter has a higher temperature and higher internal energy than that same thing at a colder temperature, everything else the same. Sorry it took so long to...

Here you said: https://stirlingengineforum.com/viewtopic.php?p=21109#p21109 I'm okay with heat being a form of energy passing from hotter to colder. I am not comfortable with internal energy being called heat. But you habitually refer to this baseline "internal energy" as "heat added&...

Anyway back to the analysis. You wrote: ... Let Qcz be the heat added from zero K all the way to Tc. That is true but confusing, so, Qcz is the internal energy of the engine's gas mass at Tc. It is the base energy. It neither used, nor rejected. It is the absolute energy level at Tc contained the th...

... If everything is 300, zero heat transfer. Zero heat transfered equals both, zero work out, and zero heat pumped. ... That's funny. My refrigerator, before plugging it in is in a 300°K environment. Everything is 300°K Do you think if I leave the refrigerator doors off and run the refrigerator it...

Anyway, I'm more interested in your response to this post, did you miss it?

viewtopic.php?p=21729#p21729

A perfect Carnot Engine: n =(370-300)/370 = about 0.19 A perfect Carnot heat pump: COP=370/(370-300) = about 5.3 70 Joules in your engine turns into about 17.5 17.5 Joules into a Carnot Heat pump: 17.5 x 5.3 = 92.75 J 92.75 / 70 = about 1.325 Or 132.5% Well, that's interesting. Suppose instead of t...

Maybe someone could explain how a toy engine with a thermal efficiency of maybe 21% rather than the Carnot Limit of 20% constitutes the dreaded "perpetual motion" making discussion on the results of an experiment forbidden to the scientific community at large. ... Nevertheless, theoretica...

Well, right off the bat I see the same conceptual difficulty with: Let Qhz be the internal energy from heat added to the cycle all the way from zero K Kelvin to Th. We add 100 joules at a temperature of 400°K As stated previously "internal energy from heat ADDED to the cycle all the way from ze...

I also want to try various thermally inert materials as "condensation medium". Aquarium gravel is very dense and heavy. I think it is just gravel with some plastic coating. The gravel works, but requires a long period of pre-heating before the engine will run. At least, in my tests so far,...

Opening the engine back up and adding a little more water did make a big improvement. I was able to press my finger down rather firmly on the magnets and the engine kept on running. https://youtu.be/yQobz7aMQJ4?si=AdzvLRK7gMDL4ng7 Just an additional observation after a few runs, so far at least, wit...