QUESTION 2 Air enters the compressor of an ideal Brayton refrigeration cycle at 140 kPa, 270...

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QUESTION 2 Air enters the compressor of an ideal Brayton refrigeration cycle at 140 kPa, 270 K, with a volumetric flow rate of 1 m/s and is compressed to 420 kPa. The temperature at the turbine inlet is 320 K. Determine. 2.1 The net power input, in kW 2.2 The refrigerating capacity, in kW. 2.3 The coefficient of performance. 2.4 The coefficient of performance of a reversible refrigeration cycle operating between reservoirs at TC = 270 K and TH = 320 K. (6) (5) (4) [18] QUESTION 2 Air enters the compressor of an ideal Brayton refrigeration cycle at 140 kPa, 270 K, with a volumetric flow rate of 1 m/s and is compressed to 420 kPa. The temperature at the turbine inlet is 320 K. Determine. 2.1 The net power input, in kW 2.2 The refrigerating capacity, in kW. 2.3 The coefficient of performance. 2.4 The coefficient of performance of a reversible refrigeration cycle operating between reservoirs at TC = 270 K and TH = 320 K. (6) (5) (4) [18]

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