Engineering, 06.06.2020 13:57 22nathanieltimms
Ammonia in a piston–cylinder assembly undergoes two processes in series. At the initial state, p1 = 120 lbf/in.2 and the quality is 100%. Process 1–2 occurs at constant volume until the temperature is 100°F. The second process, from state 2 to state 3, occurs at constant temperature, with Q23 = –98.9 Btu, until the quality is again 100%. Kinetic and potential energy effects are negligible. For 2.2 lb of ammonia, determinea) the heat transfer for Process 1–2, in Btu. b) the work for Process 2–3, in Btu.
Answers: 3
= 574.08 btu/lbm
= 2.4746 ft³/lbm
; 
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Ammonia in a piston–cylinder assembly undergoes two processes in series. At the initial state, p1 =...
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