Karl Townsend wrote:

I'm curious, they claim a thermal efficiency of 50%, nearly double that of
an automotive diesel. How do they do it? and why can't it be done in the
automotive size engine?

Karl

I don't think that 50% efficiency is thermodynamically possible. The best
designed fossil fuel powerplants barely make thirty percent. Carnot cycle
limitation?

Wonder where Pete is when we need him.

Mike Eberlein