How is this enthalpy value determined?
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Study the *attached heat pump* problem; in this problem, the saturated water vapor at 0.8 MPa has a enthalpy of 3191 KJ/kg. According to the manual, the enthalpy of saturated water vapor at 0.8 MPa is 2768 KJ/kg. So where does the enthalpy value of 3191 KJ/kg mentioned in the question come from?
I think 2768 KJ/kg; the value of 3191 given in the question is not easy to understand.