What was the specific work done by the fan on the gas for

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Reference no: EM13621351

A wind tunnel draws atmospheric air at 20C and 101.3 kPa by a large fan located at the exit of the tunnel. A) If the air velocity in the tunnel is 80 m/s, determine the pressure in the tunnel. If the velocity remains constant in the tunnel but a storm front comes through such that the atmospheric temperature and pressure drop to 17C and 95 kPa, respectively B) determine the new pressure in the wind tunnel. If the exit velocity (after the fan) is 10 m/s, what was the specific work done by the fan on the gas (for both situations) in J/kg? Does it cost more to run the tunnel before or after the storm front comes through? The fan discharges the air to the atmosphere (at atmospheric temperature and pressure) and the cost to run the tunnel is proportional to the power used by the fan.

Reference no: EM13621351

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