Academics – Applied Heat : 2022/DEC/05
Question
Q5. A vapour compression refr1geratton system using R134a operates between the pressure of 6.6525 bar and 32.433 bar.
It enters the compressor with 10 K of superheating and compressed through a compressor with an isentropic efficiency of 92%.
No undercooling takes place in the condenser.
(a) Draw the cycle on pressure-specific enthalpy and Temperature-specific entropy diagrams.
(b) Calculate EACH of the following:
(i) the temperature leaving the compressor; (ii) the coefficient of performance.
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