Carnot engine
The Carnot engine is the most efficient heat engine which is theoretically possible.
A heat engine acts by transferring energy from a warm region to a cool region of space and, in the process, converting some of that energy to mechanical work.
A heat engine acts by transferring energy from a warm region to a cool region of space and, in the process, converting some of that energy to mechanical work.
"The basic model of the Carnot engine was developed by Nicolas Léonard Sadi Carnot in 1824."