In a refrigeration system the refrigerant R134a leaves the compressor and enters the
condenser at 70°C; also leaves the expansion valve and enters the evaporator
at 20°C and 23% quality; the evaporator is used to cool 0.065 Kg/sec of
liquid water entering the evaporator at 50°C and leaving it at 40°C. (60 points)
Calculate:
a) The heat flux transferred by the water to the R134a in the evaporator.
b) The power of the compressor.
c) The heat flux in the condenser.
In A Refrigeration System The Refrigerant R134a Leaves The Compressor And Enters The Condenser At 70 C Also Leaves The 1 (44.52 KiB) Viewed 36 times
2. En un sistema de refrigeración el refrigerante R134a sale del compresor y entra al condensador a 70°C; además sale de la válvula de expansión y entra al evaporador a 20°C y 23% de calidad; el evaporador es utilizado para enfriar 0.065 Kg/seg de agua líquida que entra al evaporador a 50°C y sale de éste a 40°C. (60 ptos) Calcule: a) El flujo de calor transferido por el agua al R134a en el evaporador. b) La potencia del compresor. c) El flujo de calor en el condensador. Válvula de expansión 4 20 °C x=0.23 Condensador Ⓡ 2₁ Water 50 °C Compresor Evaporador puny 0 Vapor saturado 40 °C
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