A vapor-compression heat pump uses R-134a as the working fluid. The refrigerant enters the compressor at 2.4 bar and 0oC at a volumetric flow rate of 0.60 m3/min. Compression is adiabatic to 9 bar and 60oC and saturated liquid leaves the condenser at 9 bar. Determine...
a.) The power input to the compressor in kW.
b.) The heating capacity of the heat pump in kW.
c.) The coefficient of performance.
d.) The isentropic compressor efficiency.
3 comments:
I seem to be able to only find values for streams on one side of the regenerator (aka streams 123). How can I relate these streams to 456 besides the 1st Law for the regenerator?
Sparticus:
There is no regenerator in this problem !
In order to solve this problem,first is to draw the ph diagram and using chart for the given refrigerant. Then look for the enthalpies at each point.Afterward apply the formula in reversed cycle and Heat pump.
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