Chemical Engineering - Fluid Mechanics - Discussion


Head developed by a centrifugal pump depends on its

[A]. speed
[B]. impeller diameter
[C]. both (a) and (b)
[D]. neither (a) nor (b)

Answer: Option C


No answer description available for this question.

Kishore said: (Sep 7, 2012)  
When the speed and impeller's dia is high then high vacumn create inside the impeller and a good head is develop.

Dileep said: (Aug 29, 2013)  
What is meant by head?

Sajawal Khan said: (Jan 27, 2014)  
Energy divide by its weight is called head. Unit of head is m.

Karthik said: (Feb 4, 2014)  
Discharge press is directly proportional to pump head.

This discharge press depends on impeller dia and rpm(velocity).

Muhammad Khurram Altaf said: (Jun 2, 2014)  
As the diameter increases, the centrifugal force tends to increase which results in increase in head of a fluid.

Rama Krishna said: (Aug 25, 2015)  
Head means the pump discharge the liquid at the maximum height is called head it is dependence on its speed (consider the all friction losses).

Tenendra said: (Mar 1, 2016)  
Because HEAD is direct proportional speed N.

Shubham said: (Jul 16, 2016)  
How to calculate total head?

Alok said: (Jul 18, 2016)  
Head = (impeller blade velocity at outlet/g) [impeller blade velocity at outlet-Q/ (peripheral area of impeller * tanB) ].

Since peripheral area includes a diameter of the impeller so the answer is both A and B therefor option is correct.

Kirstos said: (Oct 26, 2016)  
What is meant by impeller?

Ashok Kumar said: (Mar 13, 2018)  
An impeller is something which is used to create a vacuum inside it due to which we lift the fluid From low pressure to high pressure.

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