A Pelton wheel works under a gross head of 450 m. It is estimated that 20% of head is lost in overcoming the friction in penstock. The jet discharge issued by the nozzles is 2 m/s. The buckets have the angle of deflection of 165°. Assuming coefficient of velocity as 0.97, find : (i) Power given by water to runner. (ii) Hydraulic efficiency of the runner. Assume, speed ratio as 0.45.

A Pelton wheel works under a gross head of 450 m. It is estimated that 20% of head is lost in overcoming the friction in penstock. The jet discharge issued by the nozzles is 2 m/s. The buckets have the angle of deflection of 165°. Assuming coefficient of velocity as 0.97, find : (i) Power given by water to runner. (ii) Hydraulic efficiency of the runner. Assume, speed ratio as 0.45.

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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