Recent content by Screwed

Do you have an example of that, that would be cool.

So, s In short, if I have an isobaric or isochoric process in a cycle, then I can not compare to the COP of a carnot cycle because the sinks are not well defined?

So, you are saying that since my cycle has an isothermal process, and for it to be reversible this must be achieved with infinite temperature sources ... then the theoretical COP of a carnot cycle does not have to be greater than the COP of my cycle because it does not really have only 2...

Well... I guess that would be a reverse carnot cycle that works between the same two temperature sinks (243 k and 487k).

@Chestermiller Thanks! But ... Can the COP of my cycle be greater than the COP of an equivalent carnot cycle? I thought that it should always be smaller, even in reversible cycles.

Homework Statement Homework Equations [/B][/B] 3. The Attempt at a Solution Here's my solution attempt: NOTE: Evolution 2 to 3 is really an isothermic process, but in the diagram shows as an politropic process. 4. Further Questions But it isn't giving me logical values of COP...