Consider a carnot-cycle refrigerator with ammonia as the

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Reference no: EM13626262

Consider a Carnot-cycle refrigerator with ammonia as the working fluid. Heat is rejected from the ammonia at 20 deg C during which process the ammonia changes from saturated vapor to saturated liquid. Heat is transferred to the ammonia at 0 deg C. Assume a mass flow rate of 0.02 kg/s. Show the cycle on a T-s diagram.
Determine:
a) The quality of the ammonia at the beginning and end of the isothermal heat addition process at 0 deg C (Answer: x1=0.947,x4=0.0713)

b) The rate of heat addition (Answer: 22kJ/s)

c) The rate of heat rejection

d) The coeficient of performance for the cycle (Answer: 13.66)

e) The power input in kJ/s

Reference no: EM13626262

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