Continue Diesel Cycle 3 s const Continue Diesel cycle efficiency: const T For isentropic process3→4： T V2 V3 V1=V4 Then,r 1 =1- 1-1 T k。-1) (const.k) ≥1 Thus,for a given r:nt.Diesel <nth.o! 上游通大学 Monday,May 08,2017 5 SHANGHAI JLAO TONG UNIVERSITYMonday, May 08, 2017 5 Continue Diesel Cycle Continue Diesel cycle efficiency: k 1 k 1 k 1 k 1 2 k 1 2 3 4 1 1 1 2 2 k 1 k 1 4 3 3 3 3 1 3 k 1 k 1 k 4 3 3 3 3 3 k c 1 2 2 2 2 2 For isentropic process 3 4: T V T V V V T T V T V V V V T V T T V V V V r T T V V V V                                                         k 1 2 1 1 2 T v T v         (const. k) 4 1 3 2 k c k 1 th 2 1 c 1 T T T T 1 T Then, 1 T k 1 1 r 1 1 r k(r 1)                              V p 1 2 4 3 V1=V4 qin V2 V3 Thus, for a given r : !    th,Diesel th,Otto