Mechanical Engineering - Hydraulic Machines - Discussion
Discussion Forum : Hydraulic Machines - Section 1 (Q.No. 6)
6.
Discharge of a centrifugal pump is
Answer: Option
Explanation:
Discharge of a centrifugal pump is directly proportional to (Diameter)^2 of its impeller.
Head of a centrifugal pump is directly proportional to (Diameter)^2 of its impeller.
Power Developed of a centrifugal pump is directly proportional to (Diameter)^4 of its impeller.
Discussion:
50 comments Page 4 of 5.
Meet Patel said:
8 years ago
Q is directly proportional to D^3.
(1)
Bapi said:
8 years ago
Q/{N(D^3)}=constant.
So the correct answer is Q is directly proportional to cube of the diameter(D) of the impeller.
So the correct answer is Q is directly proportional to cube of the diameter(D) of the impeller.
Saboor khan kamali said:
7 years ago
It is directly proportional to the square of the diameter.
Debashis said:
7 years ago
Option C is correct.
Debashis said:
7 years ago
Yes, option: C is correct.
ANGARI ABHINAY said:
7 years ago
Discharge of centrifugal pump formula π*D*b*V,
Also, Discharge Head is directly proportional to D^2,
Power is Directly proportional to N^3.
Also, Discharge Head is directly proportional to D^2,
Power is Directly proportional to N^3.
(1)
Pal said:
7 years ago
Q= π*D*v*b and v=πdN/60.
So the right answer is proportional to d^2.
So the right answer is proportional to d^2.
Deepak Rathva said:
7 years ago
Q= π x D x B x Vf.
Here, B also depends on D.
Vf depends on u means depends on DN,
So Q is directly proportional to D^3,
So all options are wrong.
Here, B also depends on D.
Vf depends on u means depends on DN,
So Q is directly proportional to D^3,
So all options are wrong.
(1)
Hemanth G said:
7 years ago
Here the discharge is asked,
I believe discharge refers to the outlet of the centrifugal compressor so
Q= π* D*B*Vf2 is the formula, that means A-option is the correct one to be chosen.
I believe discharge refers to the outlet of the centrifugal compressor so
Q= π* D*B*Vf2 is the formula, that means A-option is the correct one to be chosen.
Utsav said:
7 years ago
No, the Discharge of a centrifugal pump is Directly proportional to Impeller diameter.
You can refer to below-given affinity laws.
Q1/Q2 = D1/D2.
H1/H2 = (D1/D2)^2,
P1/P2 = (D1/D2)^3.
Q Indicates Flow that is discharged,
H Indicates Head,
P Indicates Power.
You can refer to below-given affinity laws.
Q1/Q2 = D1/D2.
H1/H2 = (D1/D2)^2,
P1/P2 = (D1/D2)^3.
Q Indicates Flow that is discharged,
H Indicates Head,
P Indicates Power.
(1)
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