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Hey! The answers for A, B, C, and D are provided at the bottom so I would really appreciate it if you could provide the
Hey! The answers for A, B, C, and D are provided at the bottom so I would really appreciate it if you could provide the work to arrive to those answers. Thank you very much! Sorry I couldn't figure out how to straighten the graph.
A refrigeration process using a vapor-compression cycle with refrigeration X is marketing their product as the best refrigeration on the market (specifically better than R-422a). At low pressures, the refrigeration acts as an ideal gas with a constant CV=16.5R and has a molecular weight of 300kg/kmol. The steady state refrigeration cycle is marketed with the following schematics. - The boiler produces saturated vapor at P=0.01MPa and T=5C at a H=45molkJ. - The compressor compresses the vapor to P=0.1MPa and T=65C. - The condenser produces saturated liquid at P=0.1MPa with H=25molkJ. - Before entering the boiler, the vapor is expanded isenthalpically to P=0.01MPa. a. What is the efficiency of the compressor? b. What is the refrigerant rate needed to produce 100skJ of cooling? c. What is the coefficient of performance of the refrigeration cycle? d. Design a refrigeration cycle using R-422a as the refrigerant with a cooling rate of 100skJ and report the COP. Assume - The same outlet temperature for the boiler and condenser - The same compressor efficiency - The output of a reversible compressor is 65C and the pressure at the outlet does not vary with reversibility. e. Report whether the new refrigerant is better than R-422aStep by Step Solution
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