Continue Otto Cycle Ideal Otto cycle 1-2 Isentropic compression 2-3 Constant-volume heat addition 3-4 Isentropic expansion 4-1 Constant-volume heat rejection v=const. 2 Isentropic 2 Isentropic U const. 梦qou TDC BDCv 上游充通大 May9,2019 12 SHANGHAI JIAO TONG UNIVERSITYMay 9, 2019 12 Continue Otto Cycle Ideal Otto cycle • 1-2 Isentropic compression • 2-3 Constant-volume heat addition • 3-4 Isentropic expansion • 4-1 Constant-volume heat rejection