1. Engineering
  2. Mechanical Engineering
  3. please explain how you obtain each answer...

Question: please explain how you obtain each answer...

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The air-conditioner is based on vapor-compression refrigeration cycle, using R-134a as refrigerant. The temperature difference between the air to be cooled and the evaporator is 24°C, and the temperature difference between the condenser and environment where the heat is discharged (in this case, outdoor air) is 30°C. The compressor has 70% efficiency. with a superheat of 10°C before compressor inlet. Estimate: 1) Operating pressures of evaporator and condenser; 2) Plot the refrigeration cycle on p-h chart 3) Mass flow rate of refrigerant ) Power requirement of compressor;

please explain how you obtain each answer

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