Chemical Engineering - Fluid Mechanics - Discussion

Discussion Forum : Fluid Mechanics - Section 14 (Q.No. 11)
11.
With increase in pump speed, its NPSH requirement
decreases
increases
remains unaltered
can either increase or decrease ; depends on other factors
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Dev said:   3 years ago
NPSH = (Pabs - Pvap.)/desnity - hfs-Lift.

So, this HFS is basically skin friction and is equal to 4flv^2/2D hence as velocity increases no of rotation increase and at last NPSH increases.

Bashir said:   5 years ago
Please someone explain it.

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