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Unformatted text preview: {State 3} p3 = 2000 {kPa} x3 = 1 v3=Volume(Water,P=p3, x=x3) u3=IntEnergy(Water,P=p3, x=x3) h3=Enthalpy(Water,P=p3, x=x3) m3 = V/v3 {Stage 1 close system} m1*(u2  u1)=Q1  W1 {energy balance equation} W1 = 0 {Stage 2 control volume} m3*u3  m2*u2 = Q2  (m2m3)*h3 {energy balance equation} {Total heat transfer} Q_total = Q1+Q2 SOLUTION Unit Settings: SI C kPa kJ mass deg h3 = 2799 [kJ/kg] m1 = 5.558 [kg] m2 = 5.558 [kg] m3 = 1.004 [kg] p1 = 100 p2 = 2000 p3 = 2000 Q1 = 4209 [kJ] Q2 = 8711 [kJ] Q total = 12921 [kJ] u1 = 438.2 [kJ/kg] u2 = 1195 [kJ/kg] u3 = 2599 [kJ/kg] V = 0.1 [m 3 ] v1 = 0.01799 [m 3 /kg] v2 = 0.01799 [m 3 /kg] v3 = 0.09962 [m 3 /kg] W1 = 0 [kJ] x1 = 0.01 x2 = 0.1708 x3 = 1 File:C:\Lei\courses\TA\4.122.EES 10/14/2011 10:57:53 AM Page 2 EES Ver. 8.874: #0171: For use by Students and Faculty in the Department of Mech. Engin., University of Maryland No unit problems were detected....
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This note was uploaded on 04/03/2012 for the course ENES 232 taught by Professor Hines during the Spring '12 term at Maryland.
 Spring '12
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