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 4 of 4.
Afrasiyab said:
1 decade ago
Power is proportional to cube of diameter.
Mohan said:
1 decade ago
Yes this answer is right but its against affinity laws, also discharge varies to square of this which is also against affinity law.
Yogendra maurya said:
1 decade ago
POWER is proportional to Q.H=d^2.V^2=d^2.(pi.dN)^2=which is proportional to d^4.
Safy said:
1 decade ago
According to the affinity laws horsepower is directly proportional to the fifth power of impeller diameter or cube of rpm, so this answer is not right.
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