Sustainable Energy
Sustainable Energy
1st Edition
ISBN: 9781133108689
Author: Richard A. Dunlap
Publisher: Cengage Learning
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Estimate the average power available in a tidal basin if the area of the tidalbasin A is 18 × 106 m2, the tidal range H is 4.6 m, and tidal period τ is9 h = 32,400 s. The sea water density ρ is 1025 kg/m3.
A hydroelectric power generating system is shown in the figure. Water flows from an upper reservoir to a lower one passing through a turbine at the rate of 187 liters per second. The total length of pipe connecting the two reservoirs is 143 m. The pipe diameter is 376 mm and the Hazen-Williams coefficient is 143. The water surface elevations of reservoirs 1 and 2 are 210 m and 68 m, respectively. Determine the power in kW required by the turbine if it is 79% efficient? Neglect minor losses.  round your answers in 3 decimal places
A river reached a flood that was passing through it. At a given instant, the storage of water in the reach was estimated as 20 Ha-m. What would be the storage in the reach after an interval of 3 hours, if the average inflow and outflow during the time period are 15 cubic meter per second and 10 cubic meter per second, respectively?
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