Devices in Ideal Rankine Cycle W=h一h m m =h-h4 Turbine Back work ratio: VWWWWWWM Wo/m (hs-h3) bwr 成/m (h1-h2) Boiler 1 Cooling water Pump Feedwater Condenser m =h2 -h3 m /int Vdp≈V3(P4-p3月 rev Thermal efficiency: W/m-W./m(h1-h2)-(h4-hs) 7= (no irreversibility) 2in/m h1-h4 上游充通大 May4,2018 10 SHANGHAI JIAO TONG UNIVERSITYMay 4, 2018 10 Devices in Ideal Rankine Cycle Feedwater Thermal efficiency: Back work ratio: (no irreversibility)