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What is the relationship between pump impeller diameter and pump horsepower?
The brake horsepower varies as a cube of the impeller diameter.
What is the function of the impeller in a centrifugal pump?
Impeller make the flow has velocity in a centrifugal pump. The purpose of pump is increasing the pressure. The flow has velocity envergy via impeller and the energy change to pressure energy in diffuser.
What type of chiller uses a screw type impeller?
centrifugal chiller
Difference between compressor and pump rotor?
The only one difference in b/w compressor and pump rotor is impeller shroud width.Fluid is incompressible so impeller shroud width is not change and gas is compressible so impellers are tends to thin in width to the discharge side.
How volute casing functions in pump?
volute has an increasing flow area as it wraps around the impeller.So, when the pump is operating at BEP (best efficiency point) ,have to keep the flow velocity constant around the impeller. To achieve that function, the area increases so as to accept the additional flow exiting the impeller.
