Temperature Entropy diagram
In above figure temperature and entropy diagram shown. Following are the description and process during reheat cycle of modern steam power plant :
G-H : Pumping work
H-A : Sensible heat gain by economizer.
A-B : Addition of Latent heat in evaporators.
B-C : Addition of heat of superheat(Degree of super heat).
C-D : Expansion of steam in HP Turbine.
D-E : Addition of superheat in re-heaters.
E-F : Expansion of steam in LP Turbine.
F-G : Heat loss from condenser.