# hw02 - ENGRI 1290 HW02 Due Problem 1 The coastal town of...

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ENGRI 1290 HW02 Due 09/20/2010

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Problem # 1 The coastal town of Princeville, Kauai, wishes to use a system of ocean buoys to power the town. The average wave height year round is 3 m and the average wave length is given below. The coefficient of performance of the buoy coupling to seawater is 0.2. The buoy radius is 1.5 meter. The distance between the centers of two consecutive buoys is 6 meters. The town is using 30 MW. We suppose all the energy captured by the buoys is turned into electricity. 1. Compute the power density per unit length of wave. 2. Compute the mechanical power of the wave exerted on one buoy. 3. What is the mechanical power harnessed by one buoy? 4. How many buoys does the town need to satisfy their power consumption? 5. How long would the system be ?
Problem # 1 (continued) The wavelength is 11m.

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Problem # 2 The Rance river tidal power plant in France generates 240 MW of power during 6 hours of operation (this is for one tide). The yearly average height of the tides is
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## This note was uploaded on 09/14/2011 for the course ENGRI 1290 taught by Professor Gourdain during the Fall '10 term at Cornell.

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hw02 - ENGRI 1290 HW02 Due Problem 1 The coastal town of...

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