Mechanical Engineering - Hydraulic Machines - Discussion
Discussion Forum : Hydraulic Machines - Section 3 (Q.No. 32)
32.
A turbine is required to develop 1500 kW at 300 r.p.m. under a head of 150 m. Which of the following turbine should be used ?
Discussion:
22 comments Page 1 of 3.
Subrata ghorai said:
3 years ago
Yes, the answer is correct, the specific speed is determines which turbine is we use 22.14 is less than 30 impulse turbine use.
Manu M.S said:
3 years ago
N*√T/ H^5/4.
300*√ 1500/150^5/4,
300*38.7/525,
11625/525.
22.14.
The specific speed of the Pelton turbine is 1 to 30.
Francis turbine = 60 to 300.
Kaplan turbine = 300 to 1000.
So, option A is correct.
300*√ 1500/150^5/4,
300*38.7/525,
11625/525.
22.14.
The specific speed of the Pelton turbine is 1 to 30.
Francis turbine = 60 to 300.
Kaplan turbine = 300 to 1000.
So, option A is correct.
Raj said:
4 years ago
The Correct answer is option B.
Ganeshr said:
4 years ago
Perfect answer, thanks @Ajaypal.
Ganeshr said:
4 years ago
@Ajaypal
The range of specific speed is wrong.
Range for sp. Speed.
For pelton or impulse - 1-10.
Francis-10-100.
Kaplan- more than 100 rpm.
Correct ans is francis turbine 22.13 lies between 10-100.
The range of specific speed is wrong.
Range for sp. Speed.
For pelton or impulse - 1-10.
Francis-10-100.
Kaplan- more than 100 rpm.
Correct ans is francis turbine 22.13 lies between 10-100.
Vinay said:
5 years ago
Given answer is correct. While calculating specific speed we always put power in kw.
Vinay BEL said:
5 years ago
Kaplan turbine is the right one.
RamKumar sen said:
5 years ago
Right, Agree @Kajal Patil.
Kajal Patil said:
5 years ago
Answer should be D.
(1)
Mayur said:
5 years ago
Option D is correct.
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