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Compressor Entropy: 0 = -DSm + Sgen Enthalpy: Wsnet = (H2 - H1) Condenser: Enthalpy: Qs = m (H3 - H4) Throttle: Enthalpy: H7 = H8 Evaporator: Enthalpy: Qe = m (H9 - H8) |
H1 = enthalpy of refrigerant flowing into compressor
H2 = enthalpy of refrigerant flowing out of compressor H3 = enthalpy of refrigerant flowing into condenser H4 = enthalpy of refrigerant flowing out of condenser H7 = enthalpy of refrigerant flowing into expansion valve H8 = enthalpy of refrigerant flowing out of expansion valve and into evaporator H9 = enthalpy of refrigerant flowing out of evaporator DS = change in entropy for given process equipment Sgen = entropy generator in given process equipment m = mass flow rate of refrigerant Qs = heat transfer from the condenser to the surroundings (positive) Qe=heat transfer from the evaporator to the refrigerator (negative) Tfluid = temperature of refrigerant |
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