Following is the data for a hydro-electric development:Net Head =300 mTurbine Output10,000 HP(i) What type of turbine would you suggest?(ii) Assuming the following specific speeds as the suitable ones, whatwould be the nearest synchronous speeds?Ns=24 per jet for a Pelton wheel with two nozzles,Ns80 for a Francis type runner.(b) Which of the two possibilities viz; a twin jet Pelton or a singleFrancis type turbine as described above under (ii) would you favour?Support your arguments in the light of the relative advantages anddisadvantages.(428.58 rpm; 1,000 rpm ; Twin-jet Pelton better)==

Following is the data for a hydro-electric development: Net Head = 300 m Turbine Output = 10,000 HP (i) What type of turbine would you suggest? (ii) Assuming the following specific speeds as the suitable ones, what would be the nearest synchronous speeds ? Ns = Ns = 24 per jet for a Pelton wheel with two nozzles, 80 for a Francis type runner. (b) Which of the two possibilities viz; a twin jet Pelton or a single Francis type turbine as described above under (ii) would you favour? Support your arguments in the light of the relative advantages and

Following is the data for a hydro-electric development: Net Head = 300 m Turbine Output = 10,000 HP (i) What type of turbine would you suggest? (ii) Assuming the following specific speeds as the suitable ones, what would be the nearest synchronous speeds ? Ns = Ns = 24 per jet for a Pelton wheel with two nozzles, 80 for a Francis type runner. (b) Which of the two possibilities viz; a twin jet Pelton or a single Francis type turbine as described above under (ii) would you favour? Support your arguments in the light of the relative advantages and

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

Following is the data for a hydro-electric development:
Net Head =
300 m
Turbine Output
10,000 HP
(i) What type of turbine would you suggest?
(ii) Assuming the following specific speeds as the suitable ones, what
would be the nearest synchronous speeds?
Ns
=
24 per jet for a Pelton wheel with two nozzles,
Ns
80 for a Francis type runner.
(b) Which of the two possibilities viz; a twin jet Pelton or a single
Francis type turbine as described above under (ii) would you favour?
Support your arguments in the light of the relative advantages and
disadvantages.
(428.58 rpm; 1,000 rpm ; Twin-jet Pelton better)
=
=

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