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water is flowing in a river at 2.5m÷s.the river is 40m wide with an average depth of 6.0m.compute the power available from the water current.

water is flowing in a river at 2.5m÷s.the river is 40m wide with an average depth of 6.0m.compute the power available from the water current.

Grade:12

1 Answers

Vasantha Kumari
askIITians Faculty 38 Points
10 years ago

We know that Power = Kinetic energy of the water that flows/sec

Or

P = ½ mv2 = ½ volume ´ density ´ velocity2

= ½ ´ area of cross-section ´ density ´ velocity3

= ½ ´ 40 ´ 6 ´ 1000 ´ 2.5 ´ 2.5 ´ 2.5 W

=1875000W = 1.87MW

Thanks & Regards,

Vasantha Sivaraj,

askIITians faculty.

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