An insulated tank containing 0.5m3 of R-134 at 500 kPa and 90% quality is connected to...

An insulated tank containing 0.5m3 of R-134 at 500 kPa and 90% quality is connected to an initially evacuated insulated piston-cylinder device. The force balance on the piston is such that a pressure of 120kPa is required to lift the piston. The valve is then opened slightly and part of the refrigerant flows to the cylinder, pushing the piston up and the final cylinder volume is 1.5 m 3 . The process ends when the pressure in the tank drops to 120kPa. Assume the refrigerant in the tank undergoes an isentropic process. (a) Determine the quality in the tank and the cylinder. 0.896, 0.92 (b) Calculate the boundary work 280.8 kJ (Expansion) (c) Determine the entropy generated during the process 0.1973 kJ/K

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samet mamat answered 1 year ago

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