Retrieve from table Tables C_A-6,C_A7 for water and C_A-13,C_A14 for refrigerant R134a 个 S0.01℃，sat liq.=0 S.40r，℃sat li.=0 (superheated)Vapor data:s~fT,p) ·Example:water,,state1(3MPa,500°C)→state2(0.3MPa,T2), S2=S1.T2=? IC_Tab.A-6 C_Tab.A-6 S1=7.2338k/kgK=S2 interpolating T2=183℃ (sub-cooled)Liquid data:s~fT,p) s(T,p)~s(T) ·Example:water,state1(25bar,200°C C Tab.A-4 C Tab.A-7 SE200c=2.3309k/kgK S1=2.3294k/kgK 上游气通大粤 April 20,2018 4 SHANGHAI JLAO TONG UNIVERSITYApril 20, 2018 4 Retrieve from table Tables C_A-6,C_A7 for water and C_A-13,C_A14 for refrigerant R134a (superheated) Vapor data: s~f(T, p) • Example: water, state 1 (3MPa, 500˚C) state 2 (0.3MPa, T2 ), s2=s1 . T2=? (sub-cooled) Liquid data: s~f(T, p) s(T,p)~sf (T) • Example: water, state 1 (25bar, 200˚C) C_Tab.A-6 s1=7.2338 kJ/kg·K=s2 C_Tab.A-6 interpolating T2= 183 ˚C C_Tab.A-7 s1=2.3294 kJ/kg·K C_Tab.A-4 sf, 200˚C=2.3309 kJ/kg·K s0.01 ˚C, sat. liq.=0 s-40˚C, sat. liq.=0