Draw the p-h diagram of the cycle. 2.2 Determine: (a) the refrigerating effect in kJ/kg, (b) the circulating rate in kg/s, (c) the power supplied, (d) the COP, (e) the heat rejected in kW, and (f) the volume flow rate in m3 /s.

Draw the p-h diagram of the cycle. 2.2 Determine: (a) the refrigerating effect in kJ/kg, (b) the circulating rate in kg/s, (c) the power supplied, (d) the COP, (e) the heat rejected in kW, and (f) the volume flow rate in m3 /s.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter41: Troubleshooting

Section: Chapter Questions

Problem 8RQ: When the outside ambient air temperature is 90F, the temperature of the condensing refrigerant in a...

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Question

A standard vapor compression system produces 70.4 kW of refrigeration using R-12
as a refrigerant while operating between a condenser temperature of 42 °C and an
evaporator temperature of –25 °C.
2.1 Draw the p-h diagram of the cycle.
2.2 Determine:
(a) the refrigerating effect in kJ/kg,
(b) the circulating rate in kg/s,
(c) the power supplied,
(d) the COP,
(e) the heat rejected in kW, and
(f) the volume flow rate in m3
/s.

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