Continue Otto Cycle Otto cycle efficiency: wu=9n-9t=1-9t=1-c(T4-T) 1- Qin Qin Qin c(T3-T2) T For isentropic process:constant,with k For process1→2：p,v=p2V吃 RT2 k-1 → P2= v Pr RT T V2 T VL 上游充通大率 May15,2018 14 HANGHAI HAO TONG LINIVERSITYMay 15, 2018 14 Continue Otto Cycle Otto cycle efficiency: 4 1 3 2 net in out out v 4 1 1 th in in in v 3 2 2 T T T T 1 w q q q c (T T ) T 11 1 q q q c (T T ) T 1                      k p v c For isentropic process : pv constant, with k c   k k For process 1 2 : p v p v   11 2 2 2 k 1 k k k1 1 2 2 21 2 1 2 1 1 k k k1 2 1 12 1 21 2 2 1 1 RT v p v Tv T vv v v v p Tv T v v v v RT v              