Derivation of exergy balance equation for CV sys. 1st law,energy balance: ”-00t-y号g2n+e叫 v2 out 8 2nd law,entropy balance: 5g-Σ8+2m2m6 dt out Solve entropy balance equation for Q,and then substitute in energy balance equation: -Tou dt out +Σo,⑧+mh++g-zmn+ 2 +g 2 in out 2 out 上游通大学 May2,2018 3 SHANGHAI JLAO TONG UNIVERSITYMay 2, 2018 3 Derivation of exergy balance equation for CV sys. 1 st law, energy balance: 2 nd law, entropy balance: Solve entropy balance equation for Qo and then substitute in energy balance equation: 2 2 CV o j in out j in out in out dE v v Q Q W m h gz m h gz dt 2 2                         CV o j in in out out tot o j j in out dS Q Q m s m s dt T T          CV CV o o j in o in out o out o tot j in out j 2 2 j in out j in out in out dE dS T T Q m T s m T s T dt dt T v v Q W m h gz m h gz 2 2                                        