6.I3 FIGURE 6.Il: T-S AND p-h DIAGRAMS FOR IDEAL RANKINE HEAT PUMP CYCLE T2 Critical E-< Q) I-< T3 ::l .µ 111 I-< Q) g, Tl Q) E-< Saturated Saturated li uid line va or line Entropy s Critical state p. p2 Q) I-< ::l Ul Ul Q) pl I-< p. Saturated liquid line Enthalpy h 1+2 Isentropic (adiabatic reversible) compression 2+3 Reversible constant pressure cooling and ~ondensation 3+4 Irreversible isenthalpic expansion (throttling process) 4+1 Reversible constant pressure heat absorption and vaporization
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