5-15 Air enters a 28-cm diameter pipe steadily at 200 kPa and 20°C with a velocity of 5 m/s. Air is heated as it flows, and leaves the pipe at 180 kPa and 40°C. Determine a) the volume flow rate of air at the inlet, b) the mass flow rate of air, and c) the velocity and volume flow rate at the exit. | |
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