Solution Cont. Determine heat transfer: energy balance for the overall processdone done m(g3-u)=Q-W→ 9- W m T3=150C ATwo-phase region 400°C 10bar 、34,=4哈+x(u台) 179.9C 3= U3-U3 4.758bar 150°C T3=150C 9g3-U3 0.1944-1.0905×10-3 0.3928-1.0905×10=0.494 3=631.68+0.494(2559.5-631.98)=1583.9kJ/kg Q 1583.9-2957.3+(-112.2)=-1485.6kJ/kg m 上游充通大学 March 14,2019 9 SHANGHAI JIAO TONG UNIVERSITYMarch 14, 2019 9 Solution Cont. Determine heat transfer: energy balance for the overall processdone done ? Two-phase region T3=150 ̊C ? T3=150 ̊C