For a hydroelectric plant, a hydraulic turbine-generator is installed at the site below the free surface. The turbine drives a generator for electricity. The elevation difference between the two free surfaces is . The power input from the fluid to the turbine is is . The shaft power output from the turbine is . (5) If the combined efficiency of the turbine and generator is , calculate the efficiency of the generator, ________%
For a hydroelectric plant, a hydraulic turbine-generator is installed at the site below the free surface. The turbine drives a generator for electricity. The elevation difference between the two free surfaces is . The power input from the fluid to the turbine is is . The shaft power output from the turbine is . (5) If the combined efficiency of the turbine and generator is , calculate the efficiency of the generator, ________%
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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For a hydroelectric plant, a hydraulic turbine-generator is installed at the site below the free surface. The turbine drives a generator for electricity. The elevation difference between the two free surfaces is . The power input from the fluid to the turbine is is . The shaft power output from the turbine is .
(5) If the combined efficiency of the turbine and generator is , calculate the efficiency of the generator, ________%
Transcribed Image Text:For a hydroelectric plant, a hydraulic turbine-generator is installed at the site below the free surface. The turbine drives a generator for electricity. The
elevation difference between the two free surfaces is h=20m. The power input from the fluid to the turbine is is W = = 100kW. The shaft power
fluid
output from the turbine is W = 80kW.
sh
(5) If the combined efficiency of the turbine and generator is
Turbine
Vquid
f
Wsh
Generator
Welec
turb-gen
= 0.7, calculate the efficiency of the generator, n
gen
%
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