Continue Otto Cycle Otto cycle energy balances: ●Assuming: ·w=0 during heat transfer processes,,△KE=△PE=0 Air is ideal gas,constant specific heats ∮du=0 din Wnet Wout-lWinl =qin-ldoutl qin =u3-u2=Cy (T3-T2) u=const. Aout=u4-u1=Cy (T4-T1) U=const. 上游充通大粤 May15,2018 13 SHANGHAI BAO TONG LINIERSITYMay 15, 2018 13 Continue Otto Cycle Otto cycle energy balances: • Assuming: • w = 0 during heat transfer processes, KE = PE = 0 • Air is ideal gas, constant specific heats wnet = wout – |win| = qin – |qout| qin = u 3 – u 2 = c v (T 3 – T 2 ) qout = u 4 – u 1 = c v (T 4 – T 1 ) d 0 u  