Change in specific flow exergy for one individual stream across CV inlet and outlet states: △Ψ12=Ψ2-Ψ1 △wa=(h,-h)+(y-i）+g(z,-z)-T,(s,-s) Generalizing for multiple inlets and outlets,we define total change in exergy across CV boundary: A中cy=∑oou-∑inΨn ou at-mnta out Relationship between flow exergy and useful work for CV: in out dEey-P。t dt o dt =0 for SSSF assumption 上游气通大粤 May2,2018 7 SHANGHAI JLAO TONG UNIVERSITYMay 2, 2018 7 Change in specific flow exergy for one individual stream across CV inlet and outlet states: Generalizing for multiple inlets and outlets, we define total change in exergy across CV boundary: Relationship between flow exergy and useful work for CV:         2 2 12 2 1 2 1 12 2 2 2 1 1 o 1 1 h h v v g z z T s s 2                CV out out in in out in 2 2 CV out o in o out in out in m m v v m h gz T s m h gz T s 2 2                               o CV CV CV use in in out out j o tot o o in out j j T dE dV dS W m m Q 1 T p T T dt dt dt 0 for SSSF assumption                       