A 1.5-ft³rigid tank contains saturated refrigerant-134 at 170 psia. Initially, 20 percent of the volume isoccupied by liquid and the rest by vapor. A valve at the top of the tank is now opened, and vapor is allowedto escape slowly from the tank. Heat is transferred to the refrigerant such that the pressure inside the tankremains constant. The valve is closed when the last drop of liquid in the tank is vaporized. Determine thetotal heat transfer for this process.R-134a, Sat. mixtureP = 170 psiaV = 1.5 ft³

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Answered: A 1.5-ft³rigid tank contains saturated…

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter7: Thermal Processes

Section: Chapter Questions

Problem 7.1P

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A Carnot vapor refrigeration cycle operates between thermal reservoirs at 7°C and 28°C. The working fluid is saturated vapor at the end of the compression process and saturated liquid at the beginning of the expansion process. Determine the operating pressures in the condenser and evaporator, in bar, and the coefficient of performance for each of the following as the working fluid. (a) Refrigerant 134a (b) Refrigerant R22 (c) water (d) ammonia
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