QUESTION 4 An axial flow turbine has a power output of 100 MW under an available head of 50 m. The overall efficiency of the turbine is 85% and the runner rotates at 120 r/min. The tip radius and the hub radius of the runner are 3.9 m and 1.56 m respectively. The guide vanes allow the water to flow in at an angle of 22° with the tangent. The water exits the runner at an angle of 55° with the tangent. Determine: 4.1 the flow rate, 4.2 the blade angle at the inlet, and 4.3 the hydraulic efficiency of the turbine.

QUESTION 4 An axial flow turbine has a power output of 100 MW under an available head of 50 m. The overall efficiency of the turbine is 85% and the runner rotates at 120 r/min. The tip radius and the hub radius of the runner are 3.9 m and 1.56 m respectively. The guide vanes allow the water to flow in at an angle of 22° with the tangent. The water exits the runner at an angle of 55° with the tangent. Determine: 4.1 the flow rate, 4.2 the blade angle at the inlet, and 4.3 the hydraulic efficiency of the turbine.

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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