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 1 of 5.
Prithvi singh said:
5 years ago
Q is directly proportional to D^3.
(4)
DebashisD said:
3 years ago
Discharge = Q * D * N.
(1)
Shaik Murtuza said:
4 years ago
Option A is the correct answer.
(1)
Biswajit Das said:
6 years ago
Option C is correct.
That Q= π D b Vf.
Anyhow Vf is related to V and V is related to u and u =π D N /60.
So, Q is directly proportional to D^2.
That Q= π D b Vf.
Anyhow Vf is related to V and V is related to u and u =π D N /60.
So, Q is directly proportional to D^2.
(1)
Utsav said:
6 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)
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.
Pabitra said:
7 years ago
Q= 3.14 d b v = d^3 n so the correct answer will be d^3.
Muhammad Waqas said:
7 years ago
Q=πDb(V_f).
Where D=Diameter of impeller at inlet,
b=width of impeller at inlet,and
V_f=Velocity of flow at inlet.
Q=πDb(V_f).
Q=πDb(πDN/60).
Hence
Q is directly proportional to square of the diameter.
Where D=Diameter of impeller at inlet,
b=width of impeller at inlet,and
V_f=Velocity of flow at inlet.
Q=πDb(V_f).
Q=πDb(πDN/60).
Hence
Q is directly proportional to square of the diameter.
Kartheek said:
7 years ago
dicharge Q = pav, a= πd^2/4 so q is directly praporional to squre of diameter.
Ali said:
7 years ago
Answer C is correct.
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