Devices in Ideal Rankine Cycle W=h一h m m =h1-h4 Turbine ◆成 Back work ratio: WWWWL Wo/m (hs-h3) bwr W/m (h1-h2) Boiler 1 Cooling water Pump Feedwater Condenser m =h2 -h3 =ha -h3 m /int Vdp≈V3(p4-p3月 rev Thermal efficiency: W/ri-Wplrin (h-h2)-(h4 -h3) 7= (no irreversibility) 2in/m h1-h4 上游充通大 Wednesday,April 26,2017 10 SHANGHAI JIAO TONG UNIVERSITYWednesday, April 26, 2017 10 Devices in Ideal Rankine Cycle Feedwater Thermal efficiency: Back work ratio: (no irreversibility)