Chemical Engineering - Fluid Mechanics - Discussion
Discussion Forum : Fluid Mechanics - Section 1 (Q.No. 17)
17.
Nominal size of the discharge pipe of a pump is usually __________ the nominal size of the inlet pipe.
Discussion:
10 comments Page 1 of 1.
KRR said:
4 years ago
B is the right answer.
Dibyakar said:
5 years ago
Discharge line is alway smaller the inlet, because when ever pump is empty air should enter the pump and start cavitation (damage the impeller and always try to keep its place on the pump).
(1)
V A said:
6 years ago
The discharge end of the pump is always greater than the inlet to the pump. And the connecting pipe could be of less size.
But pump discharge is always greater than inlet size.
But pump discharge is always greater than inlet size.
(1)
E vasu said:
6 years ago
To transport the fluid to heights, Discharge greater velocity helps to avoid gravitation forces, so outlet size should be less compared to inlet pipe size.
Ibn_Almas said:
7 years ago
It should be larger in order to let more fluid exit the device so that there is space for fresh fluid to get in. Also, the larger size of the discharge pipe leads to a reduction in exit flow velocity and also helps in increasing static pressure.
(1)
Kjith said:
7 years ago
Why? Explain the reason.
Nabeel said:
7 years ago
The pipe of discharge must be bigger than the inlet.
(1)
Avinash Kumar said:
8 years ago
The centrifugal pump accelerates fluid between suction and discharge sides. But the flow rate is to be constant.
Q=AV.
Keeping Q constant, as V increases at the outlet, the A decreases, which means diameter decreases.
Q=AV.
Keeping Q constant, as V increases at the outlet, the A decreases, which means diameter decreases.
(2)
Sandeep p said:
9 years ago
It is to avoid tripping of pumps on high load.
(1)
Pans said:
10 years ago
Why it is not same size?
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