- #1
PeteSampras
- 44
- 2
Hello,
I did read one paper about the Carnot cycle in a black hole. https://arxiv.org/pdf/1404.5982.pdf
After formula (15) this paper says:
1) "The vanishing of CV is the “isochore equals adiabat” result, specific to static black holes, making our Carnot cycles particularly simple to make explicit. We can put a Carnot cycle on the diagram by picking two isotherms for TH and TC, and then dropping two vertical lines between them to close the loop as we did in figure 2."
The vanishing of CV implies that there are isochores curves?
2) "Actually, an explicit expression for Cp would suggest that we ought to have a new engine that we can analyze simply, involving two isobars and two isochores/adiabats"
Cp non zero implies that there are isobars curves.
¿there is someone that understand these two arguments?
I did read one paper about the Carnot cycle in a black hole. https://arxiv.org/pdf/1404.5982.pdf
After formula (15) this paper says:
1) "The vanishing of CV is the “isochore equals adiabat” result, specific to static black holes, making our Carnot cycles particularly simple to make explicit. We can put a Carnot cycle on the diagram by picking two isotherms for TH and TC, and then dropping two vertical lines between them to close the loop as we did in figure 2."
The vanishing of CV implies that there are isochores curves?
2) "Actually, an explicit expression for Cp would suggest that we ought to have a new engine that we can analyze simply, involving two isobars and two isochores/adiabats"
Cp non zero implies that there are isobars curves.
¿there is someone that understand these two arguments?