Answered: 7.40 A fan produces a pressure rise of… | bartleby

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7.40 A fan produces a pressure rise of 6 mm of water to move air
through a hair dryer. The mean velocity of the air at the exit is 10
m/s, and the exit diameter is 44 mm. Estimate the electrical
power in watts that needs to be supplied to operate the fan. As-
sume that the fan/motor combination has an efficiency of 60%.
PROBLEM 7.40

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