An ideal multi-pressure refrigeration system consists of two Compressors serving one 60 Tons Evaporator at -20°C. The sy

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An Ideal Multi Pressure Refrigeration System Consists Of Two Compressors Serving One 60 Tons Evaporator At 20 C The Sy 1 (53.24 KiB) Viewed 37 times

An ideal multi-pressure refrigeration system consists of two Compressors serving one 60 Tons Evaporator at -20°C. The system uses two-stage compression with intercooling and flash Tank. A pressure reducer valve reduces the condenser pressure to intercooler pressure. The condensing temperature is 47°C. The refrigerant is R22. Calculate (a) enthalpy leaving evaporator (b) enthalpy leaving LP compressor (c) enthalpy entering HP compressor (d) enthalpy leaving HP compressor (e) enthalpy leaving condenser (f) enthalpy leaving pressure reducer valve (g) enthalpy entering expansion valve 14 answers (h) enthalpy entering evaporator (i) mass flow of R22 in LP compressor in kg/s (j) mass flow of R22 in HP compressor in kg/s (k) work on LP compressor in kw (1) work on HP compressor in kw (m) condenser load in kJ/s (n) coefficient of performance saturated liquid 5 pressure reducer valve wet vapor expansion valve Qc 1812.1 kPa, Tsat 47°C 3 saturated vapor Intercooler Flash Tank 0.4 MPa saturated liquid wet vapor QE. 60 tons superheated vapor superheated vapor WLP saturated vapor WHP