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- Understanding Efficiency and Losses in Centrifugal Pumps - Complete Guide
Understanding Efficiency and Losses in Centrifugal Pumps - Complete Guide
Learn about the various types of efficiencies, including mechanical, manometric, and volumetric, as well as overall efficiency in centrifugal pumps. Subscribe to Professor Vishal Taylor's YouTube channel for easy-to-understand explanations and diagrams.
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Video Summary & Chapters
No chapters for this video generated yet.
Video Transcript
Hi, Professor Vishal Taylor, welcome to my YouTube channels.
In this video, I teach you efficiencies of centrifugal pump and losses in the centrifugal
pump.
So, there is a different types of efficiency, mechanical efficiency, manometric efficiency,
volumetric efficiency and overall efficiency.
So, in this video, I teach you on the so easy way that you can understand easily.
So, before going to the topic, I request to subscribe my channels by pressing the subscribe
buttons and also press the bell icon to get continuous notifications.
So, here we go through one diagram, the electric motor is used to run the pump.
And the what amount of the power supplied from this electric motor, it is known as the
sub power or it is also simply known as the power.
So, it is not necessary to run the pump by using the electric motor.
We can also use the electric motor to run the pump.
as the solar energy by IC engines, by using the bicycles and the motor car.
Okay, so there is a number of way.
So in short what I telling the amount of the power supplied to the pump, it is known as
the shaft power and it is known as a in a form of mechanical energy.
Okay, because this shaft is rotated, that's why it is known as the mechanical power.
This mechanical power is supplied to the which component of the pump.
So, it is supplied to this impeller.
And impeller is also a rotating component.
So, it is also a mechanical component or it has also mechanical energy.
And this impeller, the inlet energy to the impeller is mechanical energy and output energy
from the impeller is the hydraulic energy.
But here we only concentrate on mechanical parts.
So, what is the losses?
between this shaft and the impeller that is the various mechanical losses that is
mechanical
mechanical losses means losses due to the frictions between the different parts like
the bearing, clad and packing.
So between the shaft and impeller that is a number of packing is available bearing is
available so due to that that is a losses is occur it is known as the mechanical losses.
And what is the output from that impeller that is the hydraulic energy.
When the hydraulic energy is come it is indicated as the rotor power.
But when the hydraulic power is come in this picture that is a common equation that is
the power available in a water is equal to rho g q h.
So here rho into g an instance of the q we are writing the Q capital Q plus small q that
indicate that water supplied from a suction pipe and h i is the idle head. Okay. So, this
is the runner power. So, here we understand mechanical efficiency. What is mechanical efficiency?
So, always efficiency is equal to output upon input.
So, here we are discussing mechanical efficiency.
So, we at least think that we are writing the efficiency of a two mechanical part.
So, first mechanical part that is our input is sub power and what is our output that is
a rotor power.
So, mechanical efficiency is the ratio of output upon input, output is rotor power and
input is the sub power.
So, that way we can write this efficiency.
Now, next we understand the manometric efficiency.
Now, here what we get is output that is a rho g q plus q into hi.
Now, out of these four parameters, two is constant rho and g is constant.
Video Summary & Chapters
No chapters for this video generated yet.
Video Transcript
Hi, Professor Vishal Taylor, welcome to my YouTube channels.
In this video, I teach you efficiencies of centrifugal pump and losses in the centrifugal
pump.
So, there is a different types of efficiency, mechanical efficiency, manometric efficiency,
volumetric efficiency and overall efficiency.
So, in this video, I teach you on the so easy way that you can understand easily.
So, before going to the topic, I request to subscribe my channels by pressing the subscribe
buttons and also press the bell icon to get continuous notifications.
So, here we go through one diagram, the electric motor is used to run the pump.
And the what amount of the power supplied from this electric motor, it is known as the
sub power or it is also simply known as the power.
So, it is not necessary to run the pump by using the electric motor.
We can also able to run the pump by using the different devices.
as the solar energy by IC engines, by using the bicycles and the motor car.
Okay, so there is a number of way.
So in short what I telling the amount of the power supplied to the pump, it is known as
the shaft power and it is known as a in a form of mechanical energy.
Okay, because this shaft is rotated, that's why it is known as the mechanical power.
This mechanical power is supplied to the which component of the pump.
So, it is supplied to this impeller.
And impeller is also a rotating component.
So, it is also a mechanical component or it has also mechanical energy.
And this impeller, the inlet energy to the impeller is mechanical energy and output energy
from the impeller is the hydraulic energy.
But here we only concentrate on mechanical parts.
So, what is the losses?
between this shaft and the impeller that is the various mechanical losses that is
mechanical
mechanical losses means losses due to the frictions between the different parts like
the bearing, clad and packing.
So between the shaft and impeller that is a number of packing is available bearing is
available so due to that that is a losses is occur it is known as the mechanical losses.
And what is the output from that impeller that is the hydraulic energy.
When the hydraulic energy is come it is indicated as the rotor power.
But when the hydraulic power is come in this picture that is a common equation that is
the power available in a water is equal to rho g q h.
So here rho into g an instance of the q we are writing the Q capital Q plus small q that
indicate that water supplied from a suction pipe and h i is the idle head. Okay. So, this
is the runner power. So, here we understand mechanical efficiency. What is mechanical efficiency?
So, always efficiency is equal to output upon input.
So, here we are discussing mechanical efficiency.
So, we at least think that we are writing the efficiency of a two mechanical part.
So, first mechanical part that is our input is sub power and what is our output that is
a rotor power.
So, mechanical efficiency is the ratio of output upon input, output is rotor power and
input is the sub power.
So, that way we can write this efficiency.
Now, next we understand the manometric efficiency.
Now, here what we get is output that is a rho g q plus q into hi.
Now, out of these four parameters, two is constant rho and g is constant.
