Mechanical Engineering - Hydraulic Machines - Discussion
Discussion Forum : Hydraulic Machines - Section 4 (Q.No. 10)
10.
A jet of water is striking at the centre of a curved vane moving with a uniform velocity in the direction of jet. For the maximum efficiency, the vane velocity is __________ of the jet velocity
Discussion:
18 comments Page 1 of 2.
D. SINGH said:
8 years ago
The correct answer is option A.
Bharathi said:
8 years ago
The correct answer is option A. Because when moving vane depends on pressure doesn't a velocity.
Vijay said:
8 years ago
This is curved vane not a straight plate.
Ayan said:
8 years ago
The correct answer is option A.
Ajay gupta said:
8 years ago
You are right, I agree with you @Vijay.
Akash said:
8 years ago
Answer 1/3 is right it's curved vane.
Jaimin said:
7 years ago
1/3 is correct. I agree.
Rohit said:
7 years ago
Can anyone explain this?
Deepak rathva said:
7 years ago
1/3 is correct.
dn/du = 0 for max. n (efficiency).
Solving this we get u = V/3.
dn/du = 0 for max. n (efficiency).
Solving this we get u = V/3.
Naga said:
6 years ago
The hydraulic efficiency of an impulse turbine is maximum when the velocity of the wheel is one-half the velocity of a jet of water at the inlet.
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