Atmospheric air at 1 atm, 32°C, and 95 percent relative humidity is cooled to 24°C and 60 percent relative humidity at a rate of 20 m³/min as shown in Figure Q2. A simple ideal vapor-compression refrigeration system using refrigerant-134a as the working fluid with 0.05kg/s mass flow rate, is used to provide the cooling required. It operates its evaporator at 4°C and its condenser at a saturation temperature of 39.4°C. The condenser rejects its heat to the atmospheric air. Calculate: a. the amount of water, in kg/kg dry air, removed from the air, b. the rate of heat removed from the air, in kJ/kg dry air, c. the rate of heat rejected at the condenser, d. sketch the process on the psychrometric chart provided. 24°C 60% Expansion valve Condenser Evaporator Condensate Ⓒ1 Compressor Lam 32°º℃ 954

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