A Kaplan turbine develops 1500 kw under ahead of 6 m. the turbine is set 2.5 m above the tail race while the draft tube has a submerged part length of 1.3m. A pressure gauge that installed at turbine outlet records a pressure head Of -3.1. if the overall efficiency of the turbine is 85% and the inlet draft tube diameter is 3m, determine the outlet diameter of the draft tube. Assume no leakage of water in the turbine and the losses through the draft tube is half the kinetic energy at turbine discharge.

A Kaplan turbine develops 1500 kw under ahead of 6 m. the turbine is set 2.5 m above the tail race while the draft tube has a submerged part length of 1.3m. A pressure gauge that installed at turbine outlet records a pressure head Of -3.1. if the overall efficiency of the turbine is 85% and the inlet draft tube diameter is 3m, determine the outlet diameter of the draft tube. Assume no leakage of water in the turbine and the losses through the draft tube is half the kinetic energy at turbine discharge.

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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Question

A Kaplan turbine develops 1500 kw under ahead of 6 m. the turbine is set 2.5 m above the tail
race while the draft tube has a submerged part length of 1.3m. A pressure gauge that installed at
turbine outlet records a pressure head Of -3.1. if the overall efficiency of the turbine is 85% and
the inlet draft tube diameter is 3m, determine the outlet diameter of the draft tube. Assume no
leakage of water in the turbine and the losses through the draft tube is half the kinetic energy at
turbine discharge.

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