Continue Otto Cycle Otto cycle efficiency: -we=9n-9t=l-9ou=1-c,(T4-T） =1- Qin Qin Qin c(T3-T2) T For isentropic process:py=constant,with k= Cv For process 1→2：p,V=p2V RT2 → P2 V2 Y → PI RT T V2 T - 上游气通大粤 May9,2019 14 SHANGHAI JIAO TONG UNIVERSITYMay 9, 2019 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 1 1 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   1 1 2 2 2 k 1 k k k 1 1 2 2 2 1 2 1 2 1 1 k k k 1 2 1 1 2 1 2 1 2 2 1 1 RT v p v T v T v v v v v p T v T v v v v RT v                 