Mechanical Engineering - Hydraulic Machines - Discussion
Discussion Forum : Hydraulic Machines - Section 1 (Q.No. 1)
1.
Power required to drive a centrifugal pump is directly proportional to __________ of its impeller.
Discussion:
34 comments Page 2 of 4.
Manish said:
8 years ago
Note that there are two sets of affinity laws:.
Affinity laws for a specific centrifugal pump - to approximate head, capacity and power curves for different motor speeds and /or different diameter of impellers.
Affinity laws for a family of geometrically similar centrifugal pumps - to approximate head, capacity and power curves for different motor speeds and /or different diameter of impellers.
Affinity laws for a specific centrifugal pump - to approximate head, capacity and power curves for different motor speeds and /or different diameter of impellers.
Affinity laws for a family of geometrically similar centrifugal pumps - to approximate head, capacity and power curves for different motor speeds and /or different diameter of impellers.
Sharan said:
8 years ago
Ans: C is correct.
i.e d^3--p=TW=(Tou*pi*d^3/16*T)*(v/r).
i.e d^3--p=TW=(Tou*pi*d^3/16*T)*(v/r).
Pushpender said:
8 years ago
Affinity laws applied to axial and radial flows pumps and turbines. Its a tangent flow ; impulse turbine so I think 4th power is correct.
Sullahe sanu said:
7 years ago
d^4 is the answer.
Deepak Rathva said:
7 years ago
The Correct answer is D^5.
Ref: R.K.Bansal.
Ref: R.K.Bansal.
Raj said:
6 years ago
Given answer D^4 is right.
Evans siripi said:
6 years ago
I think the answer is D.
Sai khelwane said:
6 years ago
Answer D is correct.
Bibin said:
1 decade ago
As per affinity law break horse power is directly proportional to cube of diameter or cube of rpm.
Subrata said:
9 years ago
Not right.
The correct answer Will be d^5.
The correct answer Will be d^5.
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