Fred J McCall schrieb:
Thomas Koenig wrote:

Robert Clark schrieb:

Yes. You can reject more heat at higher temperatures. But for two systems
operating at the same temperature,

What does that mean?


Stephan-Boltzmann Law. Look it up.

You graciously snipped the second part of my post, so let me
explain a little bit more.

A thermodynamic cycle opertes between two distinct temperatures.
To say that a (power) system operates at a specific temperature
has no meaning.