A vapor-compression refrigeration cycle with refrigerant-134a as the working fluid is used to maintain aspace at -13°C by rejecting heat to ambient air at 27°C. R-134a enters the compressor at 100 kPasuperheated by 6.4°℃ at a rate of 0.05 kg/s. The isentropic efficiency of the compressor is 85 percent.The refrigerant leaves the condenser at 39.4ºC as a saturated liquid. Determinea) the rate of cooling providedb) the COP of the systemc) the minimum power input required

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A vapor-compression refrigeration cycle with refrigerant-134a as the working fluid is used to maintain a space at -13°C by rejecting heat to ambient air at 27°C. R-134a enters the compressor at 100 kPa superheated by 6.4°C at a rate of 0.05 kg/s. The isentropic efficiency of the compressor is 85 percent. The refrigerant leaves the condenser at 39.4°C as a saturated liquid. Determine a) the rate of cooling provided b) the COP of the system c) the minimum power input required

A vapor-compression refrigeration cycle with refrigerant-134a as the working fluid is used to maintain a space at -13°C by rejecting heat to ambient air at 27°C. R-134a enters the compressor at 100 kPa superheated by 6.4°C at a rate of 0.05 kg/s. The isentropic efficiency of the compressor is 85 percent. The refrigerant leaves the condenser at 39.4°C as a saturated liquid. Determine a) the rate of cooling provided b) the COP of the system c) the minimum power input required

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

A vapor-compression refrigeration cycle with refrigerant-134a as the working fluid is used to maintain a
space at -13°C by rejecting heat to ambient air at 27°C. R-134a enters the compressor at 100 kPa
superheated by 6.4°℃ at a rate of 0.05 kg/s. The isentropic efficiency of the compressor is 85 percent.
The refrigerant leaves the condenser at 39.4ºC as a saturated liquid. Determine
a) the rate of cooling provided
b) the COP of the system
c) the minimum power input required

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