Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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Question
Chapter 11, Problem 18P
To determine
Find the power output from the turbine.
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A hydroelectric power plant takes in 1060 ft³/s of water through its turbine and discharges it to the atmosphere at 7 ft/s. The head loss in the penstock is 66 ft.
Estimate the power extracted by the turbine in horsepower. Show fbd.
How many kW are delivered by the water flow to the turbine?
O 62 kW
O 85 kW
O 77 kW
O 70 kW
8.
Energy Equation
Water at the Lake William Dam enters a hydraulic turbine through a 30 cm diameter pipe at a
rate of 0.6 m³/s and exits through a 25-cm diameter pipe. For the system, elevation effects are
negligible and the pressure drop across the turbine is measured to be 148 kPa. For a combined
turbine-generator efficiency of 83 percent, calculate (a) hurbine and (b) Wubrine-
You look in the FE handbook and see:
W turbine = 7/turbine-gen”ightutine, e turbine-genhtubine, e
30 cm diameter
25 cm diameter
Turbine
Generator
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