ICSE Class 8 Answered
working of a water pump
Asked by zokimiralte28 | 20 Jul, 2019, 11:29: AM
Expert Answer
A water pump is an electrical device designed to take the already existing water and increase the rate at which that water is moving.
When the water is speeding up in the pump, the device is creating low pressure at the intake, therefore creating a vacuum.
As the water is coming from the low-pressure side, the water outlet undergoes a higher pressure and the pushes the water with that force.
As the water is coming from the low-pressure side, the water outlet undergoes a higher pressure and the pushes the water with that force.
At the heart of a centrifugal water pump lies the impeller. It has a series of curved blades.
The impeller is always immersed in water so that the water pump can work its magic.
When we switch on water pump, the impeller is made to rotate, thus, in turn, making the water around it also rotate.
This rotation imparts centrifugal force to the water particles, which causes the water to move radially out.
Since rotational mechanical energy is transferred to the fluid, at the discharge sides of the impeller,
both pressure and kinetic energy of the water will increase.
At the suction part of the water pump, water is getting displaced, thus causing low pressure to be induced.
This low pressure helps in sucking the water into the system again. This creates some kind of cyclic process.
Answered by Thiyagarajan K | 20 Jul, 2019, 06:11: PM
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