Reconsider the heat pump in the previous problem. Assume the compressor is split into two. First, compress

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Reconsider the heat pump in the previous problem. Assume the compressor is split into two. First, compress to 2000 kPa. Then take heat transfer out at constant P to reach saturated vapor and then compress to 5000 kPa. Find the two rates of heat transfer, at 2000 kPa and at 5000 kPa, for a total of 1 MW shaft work input.

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To find the rates of heat transfer at 2000 kPa and 5000 kPa we need to know the inlet and exit states of the refrigerant at both pressure levels as well as the mass flow rate of the refrigerant We can use the first law of thermodynamics to calculate the heat transfer at each pressure level The first law states that the change in internal energy of a system is equal to the heat transfer into the system minus the work done by the system For the refrigerant passing through the heat pump we can write this as Q mh2 h1 W Where Q is the heat transfer m is the mass flow rate of the refrigerant h2 is the specific enthalpy at the exit state ...View the full answer

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