Astron aerospace has shown a partial prototype of a new rotary combustion engine it claims runs at an extraordinary 60% thermal efficiency, burning totally clean with zero NOx emissions and nothing ...

(brief explanation) the monthly variation in the atmospheric heat engine efficiency on the QTP for May to September from 2000 to 2020. The atmospheric heat engine efficiency from May to September ...

Just a few months ago, I wrote about how Nissan was able to produce a road-going engine with a thermal efficiency—the amount of energy produced versus wasteful heat—of 42%, beating out the likes of ...