A windmill is connected directly to a mechanical pump that is to pump water from a
Chapter 14, Problem 14.61(choose chapter or problem)
A windmill is connected directly to a mechanical pump that is to pump water from a welllO ft deep as shown. The windmill is a conventional horizontal-axis type with a fan diameter of 10 ft. 'I he efficiency of the mechanical pump is 80%. The density of the air is 0.07 lbm/ft3. Assume the windmill delivers the maximum power available. There is 20 ft of 2-inch galvanized pipe in the system. What would the discharge of the pump be (in gallons per minute) for a 30 mph wind? (1 cfm = 7.48 gpm)
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