4 Electric power is to be generated by installing a hydraulic turbine-generator at a site 70 m below the free sur- face of a large water reservoir that can supply water at a rate of 3000 kg/s steadily. If the mechanical power output of the turbine is 800 kW and the electric power generation is 750 kW, determine the turbine efficiency and the combined tur- bine-generator efficiency of this plant. Friction in pipes = 8% of available potential energy. Answers: a) b)_ % %

4 Electric power is to be generated by installing a hydraulic turbine-generator at a site 70 m below the free sur- face of a large water reservoir that can supply water at a rate of 3000 kg/s steadily. If the mechanical power output of the turbine is 800 kW and the electric power generation is 750 kW, determine the turbine efficiency and the combined tur- bine-generator efficiency of this plant. Friction in pipes = 8% of available potential energy. Answers: a) b)_ % %

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.6P

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