Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 08 Jan 2018 My Price 5.00

hydro-electric scheme

In a hydro-electric scheme a number of Pelton wheels are to be used under the following conditions: total output required 30 MW; gross head 245 m; speed 39.27 rad ·s−1 (6.25 rev/s); 2 jets per wheel;  of nozzles 0.97; maximum overall efficiency (based on conditions immediately before the nozzles) 81.5%; power specific speed for one jet not to exceed 0.138 rad (0.022 rev); head lost to friction in pipe-line not to exceed 12 m. Calculate (a) the number of wheels required, (b) the diameters of the jets and wheels, (c) the hydraulic efficiency, if the blades deflect the water through 165◦ and reduce its relative velocity by 15%,(d) the percentage of the input power that remains as kinetic energy of the water at discharge.

 

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Maurice Tutor
(5)
Status NEW Posted 08 Jan 2018 10:01 PM My Price 5.00

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