4. Water as saturated liquid at 1 bar enters a pump operating at steady state and is pumped to a pressure of 50 bar. Kinetic and potential energy effects are negligible. Determine the pump work required, in kJ per kg of water when the efficiency of pump is 0.80 .
Added by Suruswadee K.
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- Initial state: Saturated liquid at 1 bar. - Final state: Compressed liquid at 50 bar. Show more…
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Water with a specific volume of 0.001 m^3/kg flows through a centrifugal pump that operates under steady flow conditions at a volumetric flow rate of 2.0 m^3/min from an initial pressure of 80 kPa to a final pressure of 250 kPa. The diameter of the suction inlet to the pump is 15 cm and the diameter of the discharge outlet is 10 cm. If the suction and discharge outlets are at the same level and there is no change in internal energy, determine the work (HP) done on the water by the pump.
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