Stirlingengineforum.com

The Chevy celebrity engine is not where the bar is anymore. modern otto cycle engines are cracking the 40% efficiency barrier. https://www.sae.org/news/2018/04/toyota-unveils-more-new-gasoline-ices-with-40-thermal-efficiency#:~:text=Toyota%20claims%20the%20conventional%20version,hybrid%20engine%20wi...

some more comments. Stirling engines are used in reverse for high reliability cooling, very high efficiency, etc. I find them facinating, and potentially useful. The "suck" comment is the pound for pound efficiency of the stirling. of course there's not N2 problems with Stirlings either, b...

For all the comments above, I read and think, why not, add another comment, here goes: Any heat engine involves drawing heat from a higher temperature source, extracting some mechanical work, ( or power) and then dumping the remaining energy to a colder reservoir. In the stirling alpha 2 piston engi...