Answer to Question #112314 in Mechanical Engineering for manideep varma bhupathiraju

Question #112314
A room A/C in a house operates with R-12 between 1.2368 bar and 13.672 bar. The vapour is dry and saturated at the compressor inlet. Assuming isentropic compression, determine the theoretical C.O.P of the plant is 80% of the theoretical, calculate the power required to run the compressor to obtain a refrigerating capacity of 1 TR. If the liquid is sub-cooled through 10oC after condensation, calculate the power required. The properties of R-12 are given below: Saturation Temperature oC Enthalpy, kJ/kg Entropy, kJ/kgK Saaturation pressure (bar) Liquid Vapour Liquid Vapour 1.2368 13.672 -25 13.33 176.48 0.0552 0.7126 55 90.28 207.95 0.3197 0.6774

Temperature (oC) Pressure(bar) Enthalpy(kJ/kg) Entropy(kJ/kgK) 64.86 13.672 220.6 0.7126 Assume specific heat of liquid to be 1.055 kJ/kgK
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Expert's answer
2020-04-28T12:26:36-0400

Data is not understandable please make it clearify ,


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