Solved A model windmill, of diameter 50 cm, develops 2.7 kW
Question: A model windmill, of diameter 50 cm, develops 2.7 kW at sea level when V=40 m/s and when rotating at 4800rev/min. What is the appropriate rotation rate of a geometrically and dynamically similar prototype, of diameter 5 m, in winds of 13 m/s at 2000 m standard altitude? The rotation rate is rev/min. There are 2 steps to solve this one.
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Solved 2. A model windmill of diameter 50 cm, develops 2.7
2. A model windmill of diameter 50 cm, develops 2.7 kW of power by rotating at 4800 rpm at sea level when the average wind velocity is 40 m/s. This model is to be used to predict the performance of a 5 m-diameter prototype that will be built at an elevation of 2000 m standard altitute and be exposed to winds of 12 m/s average speed. Determine a ...
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