he hydroelectric facility that has been proposed will consist of a turbine with an efficiency of 89.2%. The facility will be located at a vertical depth of 14.8 m below the riverbed. The river flows with the following properties: o hydraulic diameter of 6.25 m o slope of 0.031 o wetted perimeter of 12.2 m o a Chezy coefficient of 4.85 m 0 - 5 s1 . Thedensity of the river water is 998.2 kg m3 , and the acceleration due to gravity is 9.81 m s2. Assuming that the turbine operates for 94.0% of the time and one year is approximately 3.1536 x 107 s, calculate: i. the mass flow rate of the river (5 marks) ii. the maximum energy that could be extracted annually from the river flow.
he hydroelectric facility that has been proposed will consist of a turbine with an efficiency of 89.2%. The facility will be located at a vertical depth of 14.8 m below the riverbed. The river flows with the following properties: o hydraulic diameter of 6.25 m o slope of 0.031 o wetted perimeter of 12.2 m o a Chezy coefficient of 4.85 m 0 - 5 s1 . Thedensity of the river water is 998.2 kg m3 , and the acceleration due to gravity is 9.81 m s2. Assuming that the turbine operates for 94.0% of the time and one year is approximately 3.1536 x 107 s, calculate: i. the mass flow rate of the river (5 marks) ii. the maximum energy that could be extracted annually from the river flow.
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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Question
The hydroelectric facility that has been proposed will consist of a turbine with an
efficiency of 89.2%. The facility will be located at a vertical depth of 14.8 m below
the riverbed. The river flows with the following properties:
o hydraulic diameter of 6.25 m
o slope of 0.031
o wetted perimeter of 12.2 m
o a Chezy coefficient of 4.85 m
0
-
5
s1
.
Thedensity of the river water is 998.2 kg m3
, and the acceleration due to gravity is
9.81 m s2.
Assuming that the turbine operates for 94.0% of the time and one year is
approximately 3.1536 x 107
s, calculate:
i. the mass flow rate of the river
(5 marks)
ii. the maximum energy that could be extracted annually from the river flow.
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