Thermodynamics SECOND LAW OF THERMODYNAMICSFigure 32 Rankine Cycle With Real v.s. IdealFrom the T-s diagram (Figure 32) it can also be seen that if an ideal component, in this case theturbine, is replaced with a non-ideal component, the efficiency of the cycle will be reduced. Thisis due to the fact that the non-ideal turbine incurs an increase in entropy which increases the areaunder the T-s curve for the cycle. But the increase in the area of available energy (3-2-3’,Figure 32) is less than the increase in area for unavailable energy (a-3-3’-b, Figure 32).Figure 33 Rankine Cycle Efficiencies T-sRev. 0 Page 89 HT-01