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Hydroelectric Power Generation

The electrical power obtained from conversion of potential and kinetic energy of water is called Hydroelectric power


PE= potential energy

W =total weight of the water

Z =vertical distance water can fall

Power is the rate at which energy is produced or utilized:

1 horsepower (hp) =550 ft lb/s

1 kilowatt (kW) = 738 ft lb/s

1 hp= 0.746 kW

1 kW =1.341 hp

Power obtained from water flow may be computed from

hp=? Qwh/550= ?Qh/8.8

kW=? Qwh/738= ? Qh/11.8

kW= kilowatt

hp= horsepower

Q= flow rate, ft3/s (m3/s)

w =unit weight of water 62.4 lb/ft3 (998.4

h = effective head total elevation difference minus line losses due to friction and turbu- lence, ft (m)
?= efficiency of turbine and generator

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Kanwarjot Singh

Kanwarjot Singh is the founder of Civil Engineering Portal, a leading civil engineering website which has been awarded as the best online publication by CIDC. He did his BE civil from Thapar University, Patiala and has been working on this website with his team of Civil Engineers.

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