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how a centrifugal pump is working?
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Answer Posted / akash murali
a centrifugal pump has a casing,an impeller mounted on a shaft,an inlet and an outlet pipe.the shaft is connected to a motor,which causes the impeller to rotate.this produces a low pressure area at the eye of the impeller(the center of the impeller).the pressure difference causes the fluid to be sucked up into the casing.the curved vanes of the impeller rotates the fluid,imparting kinetic energy to the fluid due centrifugal force(hence the name centrifugal pump).energy is imparted to the fluid by this means.this fluid now enters the volute,which is a part whose cross sectional area increases gradually.as per Bernoulli's law and equation of continuity, the velocity decreases as the area of cross section decrease.the drop this kinetic energy is compensated by an increase of pressure energy(pressure head),which can be used to transport the liquid to a greater height.basically,a pressure difference between the inlet and the reservoir sucks the fluid into the casing,and the energy imparted in the form of kinetic energy is converted to pressure head
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