Sustainable Energy, SI Edition
2nd Edition
ISBN: 9781337672092
Author: DUNLAP, Richard A.
Publisher: Cengage Learning
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Question
Chapter 11, Problem 10P
(a)
To determine
Find the flow rate of the water in the penstock.
(b)
To determine
Find the velocity of the water in the penstock.
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Students have asked these similar questions
1) A pelton wheel is used to produce hydroelectric power. The average radius of the wheel is 1.83 m, and the jet velocity is 100 m/s from a nozzle of exit diameter equal to 10 cm. What is the volume flow rate through the turbine in m3/s?
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78.54
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0.785
2) A water pump increases the pressure of the water passing through it (see picture below). The flow is assumed to be incompressible. If the outlet diameter is less than inlet diameter, which of the following about outlet and inlet fluid velocity is correct?
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Water in a reservoir is flowing through a hydroelectric plant. The water level in the reservoir
is 53 ft. The water level on the spillway is 3 feet and its width is 10 feet. The headloss is 10 ft.
The flow leaving the reservoir is 500 cubic feet per second. What is the amount of head
available to drive the turbine?
48.62 ft
31.38 ft
35.69 ft
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A hydroelectric power plant takes in 30 m^3/s of water through its turbine and discharges it to the atmosphere at 2 m/s. The head loss in the penstock is 20 m.
Estimate the power extracted by the turbine in megawatts.
Chapter 11 Solutions
Sustainable Energy, SI Edition
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