Chemical Engineering - Fluid Mechanics - Discussion
Discussion Forum : Fluid Mechanics - Section 1 (Q.No. 11)
11.
With increasing flow rate, the hydraulic efficiency of a centrifugal pump
Discussion:
29 comments Page 2 of 3.
Anish said:
5 years ago
Yes, D is the right answer.
J.Marwat said:
5 years ago
From the hydraulic efficiency of a centrifugal pump, it is clear that with increase of velocity the hydraulic efficiency will be decreased.
Pankaj Gupta said:
5 years ago
The right Answer is D.
Aditi said:
5 years ago
Agree, the correct answer is D.
Akhil Raj M said:
6 years ago
As per centrifugal pump performance curve efficiency first increase with flow rate and after reaching the best efficiency point efficiency goes on decreasing, because any equipments, instruments and electrical designed and fabricated for maximum calibration value after that efficiency decreases.
Pratik said:
6 years ago
The answer should be D.
Edwin said:
6 years ago
The correct Answer is option D.
Aditya singh said:
6 years ago
The correct answer will be D.
Shiv said:
6 years ago
According to "operating characteristic curve", it is head which decreases monotonically. Efficiency first increases till peak point of it and then decreases. Power consumption is increased monotonically. So, the answer should be "D" in place of A.
Sushil said:
7 years ago
A centrifugal pump has three form of efficiency that aids on pump performance : mechanical efficiency, volumetric efficiency and major part Hydraulic efficiency which includes liquid friction and other losses in the volute and impeller of the pump, these losses are proportional to increase in flow rate, because increasing flow more than re >2100 tends to turbulence and Eddies, skin friction, occurs in the line, fittings etc.
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