6.113 State 1: dry saturated vapor p 1 pevap = 7.7 psia h 1 97 Btu/lbm s 1 = .196 Btu/lbm- 0 R State 2: superheated vapor T 2 = 433°K (picket to have the radiator inlet temp. as high as possible) p 2 prad = 300 psia h 2 128 Btu/lbm s2 = s 1 = .196 Btu/lbm- 0 R State 2': dry saturated vapor T 2 ,= 423°K (less than the critical temp. 471°K) State 3: saturated liquid p 3 prad = 300 psia h 3 75 Btu/lbm
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