Solution cont. 30bar 400°C TabA-4,(100C)→s2=7.3549k/kg TabA-6,(30bar,400°C)→s1=6.9212k/kg-K; 100°C -22.6kJ/kg、 Qev/ri +(S2-S1) m Tp (-22.6kJkg) 350K +(7.3549-6.9212) = 0.0646+0.4337=0.4983kJ/kg·K 上游充通大 April 26,2018 9 SHANGHAI JIAO TONG UNIVERSITYApril 26, 2018 9 Solution cont. Tab A-6, (30bar, 400˚C)s1 = 6.9212kJ/kg-K; Tab A-4, (100˚C)s2=7.3549 kJ/kg