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Refrigerant 22 enters an insulated compressor operating at steady state as saturated vapor at 16oC with a mass flow rate of 1.5 kg/s. Refrigerant exits at 7 bar, 70oC. Changes in KE and PE from inlet to exit can be ignored. Determine:
a) the volumetric flow rates at the inlet and exit, each in m3/s
b) the power input to the compressor, in kW
Find the theoretical work required per unit mass for the isothermal compression of 800 m3 air from 100KPa to 900 KPa in closed system.
A 1/10th scale model of an airplane is to be tested in a wind tunnel that operates with air at a pressure of 20 atmospheres. The plane is expected to fly at a speed of 500 [km/hr]. (a) What speed should the wind tunnel be run? (b) If the drag measure..
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