Stirlingengineforum.com

Well this would be pretty easy to build at smaller scale. If nothing else it would make a cool piece of functional art.

They say it has already been tested and proven. I'm not sure what point your trying to make. The pressure of the water column is not due to the volume of the water in the column. It's only due to the height of the column. It looks to be a good way to heat air with a fluid, but not much else, unless...

It's a clever pitch but I think it's dead on arrival.

https://www.youtube.com/watch?v=EJHrr21UvY8

It has taken me far too long to realize the true nature of PV=nRT. I struggled with how to relate it to a free expansion, where the piston is allowed to travel faster than the expanding gas. Instead, and it may be obvious to many, PV=nRT as related to an expansion, describes the maximum affect possi...

Putting all of the theoretical aside, this is a short list of everything I have learned about these engines with the help of other forum members, especially Matt Brown, that I can only hope will encourage others to look at these engines differently than in the past. One would be served well to not j...

The only thing that creates power is more pressure in the cylinder on the down stroke and more pressure in the buffer space on the up stroke. Standard 90 degree phasing is just a compromise that allows the engine to run. It is elegant in its simplicity but in no way optimal. Why would you want to st...

This video shows how timing is best at 0 degrees. The only reason for advanced timing on a piston engine is to allow air temperature to rise. So 0 degrees is way too late, and 90 degrees is way too early. Hence why most IC engines and my own tests have favored from 10-30 degrees BTDC, with distinct ...

Matt, I think your depiction of the Stirling cycle is not accurate. At least not by traditional design standards. You don't appear to include, or account for, in any way, the standard 90° advance which IMO changes the dynamics considerably. Also, you don't appear to make adjustments for the tempera...

Ha, good one.

But question is what answer would Elon want? I guess it's between "nothing", and "it depends"? Or, "I need more information", lol.

If you row out into a lake and dump a bunch of weight overboard, what happens to the level of the lake ?

I want to say basically nothing lol. What’s a KIA guy?

. Matt has proved... So you now trust his math and logic as if it's proof? I suppose it could be considered a mathematical proof. You know, he and I agree on the mathematics here often. I'm not sure what you are implying. If it's that, a hot power piston behaves differently than a cold power piston...

This topic has drifted wildly, but I want to make sure the conclusion is not that energy transfer is equal to the power piston be it hot or cold. Matt has proved and it should be obvious by now that there is more power potential in a hot connected piston. Yes, pressure transfers through cold just fi...

Well, I still don't think I get it. Put in another way, heat transfer can be near 100% efficient while passing through a metal heat sink, but this does not take into account the large internal force generated from the metal expanding, which goes wasted, mostly because it is hard to utilize and the ...

I don't think it's negligible. It would be where all the heat is going almost 100% All the heat is converted to mechanical work, then the mechanical work produces friction and the work is converted back into heat. If the engine and heat source are both inside the insulated box, where else is the en...

Vincent both the yellow flame and blue flame are converted to boiling equally efficiently. 100%. What you are loosing is the ability to convert more energy to work. The blue flame to boiling has the possibility of being converted to more work than the yellow flame. The question then becomes, 'what ...