Air enters the compressor of a Brayton refrigeration cycle at 100 kPa, 260 K, and is compressed adiabatically to 300 kPa. Air enters the turbine at 300 kPa, 300 K, and expands adiabatically to 100 kPa. For the cycle, assuming the compressor and turbine isentropic efficiencies are both 100%, determine: (a) The net work per unit mass of air flow [15 kJ/kg] (b) The coefficient of performance [2.7]

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Air enters the compressor of a Brayton refrigeration cycle at 100 kPa, 260 K, and is compressed
adiabatically to 300 kPa. Air enters the turbine at 300 kPa, 300 K, and expands adiabatically to
100 kPa. For the cycle, assuming the compressor and turbine isentropic efficiencies are both 100%,
determine:
(a) The net work per unit mass of air flow [15 kJ/kg]
(b) The coefficient of performance [2.7]
Transcribed Image Text:Air enters the compressor of a Brayton refrigeration cycle at 100 kPa, 260 K, and is compressed adiabatically to 300 kPa. Air enters the turbine at 300 kPa, 300 K, and expands adiabatically to 100 kPa. For the cycle, assuming the compressor and turbine isentropic efficiencies are both 100%, determine: (a) The net work per unit mass of air flow [15 kJ/kg] (b) The coefficient of performance [2.7]
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