At a hydroelectric plant the difference in elevation between the surfaace of the water at the intake and at the tailrace is 183m (600ft). When the flow is 80 cfs, the friction loss in the penstock is 60 ft and the head utilized by the turbine is 460 ft. The mechanical friction in the turbine is 100hp, and the leakage loss is 3 cfs. Find (a) hydraulic efficiency; (b) volumetric efficiency; (c) power delivered to shaft; (d) brake horse power, (e) mechanical efficiency; (f) over-all efficiency.
At a hydroelectric plant the difference in elevation between the surfaace of the water at the intake and at the tailrace is 183m (600ft). When the flow is 80 cfs, the friction loss in the penstock is 60 ft and the head utilized by the turbine is 460 ft. The mechanical friction in the turbine is 100hp, and the leakage loss is 3 cfs. Find (a) hydraulic efficiency; (b) volumetric efficiency; (c) power delivered to shaft; (d) brake horse power, (e) mechanical efficiency; (f) over-all efficiency.
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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At a hydroelectric plant the difference in elevation between the surfaace of the water at the intake and at the tailrace is 183m (600ft). When the flow is 80 cfs, the friction loss in the penstock is 60 ft and the head utilized by the turbine is 460 ft. The
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