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A nozzle having a velocity coefficient of 0.98 discharges a jet 15 cm in diameter under a head of 270 m. The average nozzle angle is a 1 -3° a₁ = 3°. The wheel diameter is 2.45 m, ß 2 -20°. k-0.5. ß₂ = 20° .k = 0.5. The mechanical efficiency is 97%. The peripheral velocity of the wheel is designed for maximum efficiency. Solve for the Turbine Gross efficiency. (nr) max = 98% (1T)max = 76.34% (NT)max = 85.17% (NT)max = 73.04 %

A nozzle having a velocity coefficient of 0.98 discharges a jet 15 cm in diameter under a head of 270 m. The average nozzle angle is a 1 -3° a₁ = 3°. The wheel diameter is 2.45 m, ß 2 -20°. k-0.5. ß₂ = 20° .k = 0.5. The mechanical efficiency is 97%. The peripheral velocity of the wheel is designed for maximum efficiency. Solve for the Turbine Gross efficiency. (nr) max = 98% (1T)max = 76.34% (NT)max = 85.17% (NT)max = 73.04 %

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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A nozzle having a velocity coefficient of 0.98 discharges a jet 15 cm in diameter under a head of 270 m. The average nozzle angle is a 1 =3° a₁ = 3°. The wheel diameter is 2.45 m, ß 2 -20°. k-0.5. ß₂ = 20° .k = 0.5. The mechanical efficiency is 97%. The peripheral velocity of the wheel is designed for maximum efficiency. Solve for the Turbine Gross efficiency. (NT)max = 98% (1T)max = 76.34% (NT)max = 85.17 % (NT) max = 73.04 % None of these
Transcribed Image Text:A nozzle having a velocity coefficient of 0.98 discharges a jet 15 cm in diameter under a head of 270 m. The average nozzle angle is a 1 =3° a₁ = 3°. The wheel diameter is 2.45 m, ß 2 -20°. k-0.5. ß₂ = 20° .k = 0.5. The mechanical efficiency is 97%. The peripheral velocity of the wheel is designed for maximum efficiency. Solve for the Turbine Gross efficiency. (NT)max = 98% (1T)max = 76.34% (NT)max = 85.17 % (NT) max = 73.04 % None of these
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