Continue Rankine Cycle Improvements Overall thermal efficiency: 1→2 3→4 5→6 W net Wn+Wr2-Wp QB+QR 6→1 2→3 T --5-1 --Tavg.rcheat Multi-staging with Reheat: Idea:Would rather raise TB than Ts Consider limit of infinite-stages: 上游充通大学 Wednesday,May 03,2017 10 SHANGHAI JIAO TONG UNIVERSITYWednesday, May 03, 2017 10 Continue Rankine Cycle Improvements Overall thermal efficiency: Multi-staging with Reheat: • Idea: Would rather raise TB than T5 • Consider limit of infinite-stages: T1 T2 P net th in B R W W W W Q Q Q   h    12 34 56 61 23 TH TL 5 TB