Maurice Tutor

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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 06 Jul 2017 My Price 14.00

nozzles of the turbine

A four-jet Pelton turbine is supplied by a reservoir whose surface is at an elevation of
500m above the nozzles of the turbine. The water flows through a single pipe 600 m long, 0.75
m diameter, with a friction coefficient f = 0.0075. Each nozzle provides a jet 75 mm diameter
and the nozzle velocity coefficient KN = 0.98. The jets impinge on the buckets of the wheel at a
radius of 0.65 m and are deflected (relative to the wheel) through an angle of 160 deg. Fluid friction
within the buckets reduces the relative velocity by 15%. The blade speed to jet speed ratio
n = 0.48 and the mechanical efficiency of the turbine is 98%.
Calculate, using an iterative process, the loss of head in the pipeline and, hence, determine
for the turbine
(i) the speed of rotation;
(ii) the overall efficiency (based on the effective head);
(iii) the power output;
(iv) the percentage of the energy available at turbine inlet which is lost as kinetic energy at
turbine exit.

Answers

Maurice Tutor
(5)
Status NEW Posted 06 Jul 2017 02:07 PM My Price 14.00

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