A Pelton wheel operates with an effective head of 310 m producing 15 MW of power.The overall efficiency of the turbine is n = 0.84, the velocity coefficient of the nozzleis CN = 0.98, and the velocity coefficient of the rotor is c, = 0.85. The angle ofthe relative velocity leaving the rotor is B3 = -73°. The wheel rotates at 500 rpm,and the ratio of the blade speed to nozzle velocity is 0.46. (a) Give a recommendednumber of jets to which the supply flow should be split and the number of bladeson the wheel. (b) Find the mechanical and volumetric efficiencies given the value ofKu = 0.05. (c) Find also the optimum speed ratio.

The number of jets generally speaking you don't what they're to be than 30 jets for every message…

A Pelton wheel operates with an effective head of 310 m producing 15 MW of power. The overall efficiency of the turbine is 7 = 0.84, the velocity coefficient of the nozzle is CN = 0.98, and the velocity coefficient of the rotor is c, = 0.85. The angle of the relative velocity leaving the rotor is ß3 = -73°. The wheel rotates at 500 rpm, and the ratio of the blade speed to nozzle velocity is 0.46. (a) Give a recommended number of jets to which the supply flow should be split and the number of blades on the wheel. (b) Find the mechanical and volumetric efficiencies given the value of Ku = 0.05. (c) Find also the optimum speed ratio. %3D %3D

A Pelton wheel operates with an effective head of 310 m producing 15 MW of power. The overall efficiency of the turbine is 7 = 0.84, the velocity coefficient of the nozzle is CN = 0.98, and the velocity coefficient of the rotor is c, = 0.85. The angle of the relative velocity leaving the rotor is ß3 = -73°. The wheel rotates at 500 rpm, and the ratio of the blade speed to nozzle velocity is 0.46. (a) Give a recommended number of jets to which the supply flow should be split and the number of blades on the wheel. (b) Find the mechanical and volumetric efficiencies given the value of Ku = 0.05. (c) Find also the optimum speed ratio. %3D %3D

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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