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A Pelton wheel with an efficiency of 85% is used to produce hydroelectric power from flow...

A Pelton wheel with an efficiency of 85% is used to produce hydroelectric power from flow of water behind a dam with an elevation head of 420 m. The average radius of the wheel and its angular velocity are 2.0 m and 220 rpm, respectively. This turbine works at its optimum rotation rate (which produces maximum power). The turning angle of the buckets is ? = 165° and nozzle diameter is given as 8.00 cm. a. Calculate volumetric flow rate of water. b. Find power output from turbine. Consider ρ = 1000 kg/m3

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Answer #1

O= AVL A = Area of jet/Nozzle.exit Vi = Outlet velocity of Jet Vi= √2gH H = Head. K = √2x 2x9.01 31x420 90.77 m/s - OF āx (0.

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