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100 kW power is used for refrigeration system working on bootstrap air refrigeration cycle. Required data are given below:
written 5.3 years ago by | modified 23 months ago by |
Ambient air pressure = 1 bar.
Ambient air temperature=288K
Compressor delivery pressure = 3.5 bar
Cabin pressure=1 bar.
Maximum pressure=5.6 bar
Heat exchanger effectiveness for both heat exchanger = 0.85
Efficiency of main and auxiliary compressors is 0.83 and 0.75 resp.
Turbine efficiency = 0.77
Cabin is maintained at 28˚C and 1 bar.
Determine;
i. Refrigeration capacity in TR
ii. COP
iii. Determine the percentage of turbine power used by auxiliary compressor.
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