Sagar S Kulkarni
Dayananda Sagar College of Engineering (DSCE), Bengaluru
Sagar S Kulkarni has created this Calculator and 200+ more calculators!
Anshika Arya
National Institute Of Technology (NIT), Hamirpur
Anshika Arya has verified this Calculator and 400+ more calculators!

11 Other formulas that you can solve using the same Inputs

Manometric efficiency in terms of velocities
Manometric efficiency=([g]*Manometric head)/(Velocity of whirl at outlet*Tangential velocity of impeller at outlet) GO
Speed ratio
Speed ratio=Tangential velocity of impeller at outlet/sqrt(2*[g]*Manometric head) GO
Manometric efficiency
Manometric efficiency=Manometric head/Head imparted by impeller GO
Specific speed of a pump
Specific speed of a pump=(Speed*sqrt(Discharge))/(Head^(3/4)) GO
Head of a turbine given specific speed
Head=((Speed*sqrt(Power))/Specific speed of a turbine)^(4/5) GO
Specific speed of a turbine
Specific speed of a turbine=(Speed*sqrt(Power))/(Head^(5/4)) GO
Discharge of a pump given specific speed
Discharge=sqrt(Specific speed of a pump*(Head^(3/4))/Speed) GO
Head of a pump given specific speed
Head=(Speed*sqrt(Discharge)/Specific speed of a pump)^(4/3) GO
Power of a turbine given specific speed
Power=((Specific speed of a turbine*Head^(5/4))/Speed)^2 GO
Peripheral velocity of the blade at the exit corresponding to diameter
Peripheral velocity at exit=pi*Speed*Diameter /60 GO
Unit speed
Unit speed=Speed/sqrt(Head) GO

2 Other formulas that calculate the same Output

Outlet diameter of impeller in terms of speed ratio, manometric head and impeller speed
Diameter of impeller at outlet=(84.6*Speed ratio*sqrt(Manometric head))/Speed GO
Impeller outlet diameter
Diameter of impeller at outlet=(60*Velocity)/(pi*Speed) GO

Least diameter of impeller Formula

Diameter of impeller at outlet=(97.68*sqrt(Manometric head))/Speed
D<sub>2</sub>=(97.68*sqrt(H<sub>mano</sub>))/N
More formulas
Angular velocity GO
Tangential velocity of the impeller at inlet GO
Tangential velocity of impeller at outlet GO
Impeller radius at inlet given inlet tangential velocity GO
Torque at outlet GO
Work done per second GO
Work done per second in terms of torque and angular velocity GO
Work done per second per unit weight of liquid GO
Work done per second if the flow at inlet is not radial GO
Work done per second per unit weight of liquid if the flow at inlet is not radial GO
Volume of liquid at inlet GO
Weight of liquid GO
Static head GO
Manometric head in terms of static head and losses in pipes GO
Manometric head in terms of head imparted by the impeller and loss of head in the pump GO
Manometric head in terms of total head at outlet and inlet of the pump GO
Manometric efficiency GO
Manometric efficiency in terms of velocities GO
Tangential velocity of the impeller at inlet in terms of angular velocity and impeller radius GO
Tangential velocity of the impeller at outlet in terms of angular velocity and impeller radius GO
Impeller radius at outlet given outlet tangential velocity GO
Volume of liquid at outlet GO
Manometric head in terms of static head, friction losses in suction and delivery pipes GO
Manometric head in terms of head imparted by the impeller if loss of head in the pump is zero GO
Volumetric efficiency GO
Mechanical efficiency GO
Overall efficiency in terms of manometric, volumetric and mechanical efficiencies GO
Minimum speed for starting a centrifugal pump GO
vane efficiency GO
Flow ratio GO
Tangential velocity given speed ratio GO
Flow velocity given flow ratio GO
Flow velocity at inlet given volume of liquid GO
Flow velocity at outlet given volume of liquid GO
Impeller power GO
Output power GO
Static power GO
Outlet diameter of impeller in terms of speed ratio, manometric head and impeller speed GO
Manometric head given outlet impeller diameter, impeller speed and speed ratio GO
Diameter of suction pipe GO
Diameter of delivery pipe GO
Leakage of liquid given volumetric efficiency and discharge GO
Overall efficiency GO
Thoma's cavitation factor GO
Net positive suction head GO
Suction specific speed GO
Thoma's cavitation factor in terms of net positive suction head GO

What is manometric head?

Manometric head is the sum of the actual lift (Static head), the frictional losses in the pipes and the discharge velocity head. In other words, the energy needed by the water from suction in suction pipe to discharge in the discharge tank, converted into head form is called manometric head.

How to Calculate Least diameter of impeller?

Least diameter of impeller calculator uses Diameter of impeller at outlet=(97.68*sqrt(Manometric head))/Speed to calculate the Diameter of impeller at outlet, The Least diameter of impeller formula is defined as the ratio of square root of manometric head multiplied by 97.68 to the speed of the impeller. Diameter of impeller at outlet and is denoted by D2 symbol.

How to calculate Least diameter of impeller using this online calculator? To use this online calculator for Least diameter of impeller, enter Manometric head (Hmano) and Speed (N) and hit the calculate button. Here is how the Least diameter of impeller calculation can be explained with given input values -> 1.381404 = (97.68*sqrt(2))/100.

FAQ

What is Least diameter of impeller?
The Least diameter of impeller formula is defined as the ratio of square root of manometric head multiplied by 97.68 to the speed of the impeller and is represented as D2=(97.68*sqrt(Hmano))/N or Diameter of impeller at outlet=(97.68*sqrt(Manometric head))/Speed. Manometric head is the sum of various losses and velocity in delivery pipe and Speed of a machine/body in rpm.
How to calculate Least diameter of impeller?
The Least diameter of impeller formula is defined as the ratio of square root of manometric head multiplied by 97.68 to the speed of the impeller is calculated using Diameter of impeller at outlet=(97.68*sqrt(Manometric head))/Speed. To calculate Least diameter of impeller, you need Manometric head (Hmano) and Speed (N). With our tool, you need to enter the respective value for Manometric head and Speed and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Diameter of impeller at outlet?
In this formula, Diameter of impeller at outlet uses Manometric head and Speed. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Diameter of impeller at outlet=(60*Velocity)/(pi*Speed)
  • Diameter of impeller at outlet=(84.6*Speed ratio*sqrt(Manometric head))/Speed
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