Example 6-1 Subcooled liquid water at 5°C and 100 kPa is pumped to a final pressure of 490 kPa. The inlet pipe has a diameter of 2 cm and the velocity is 16.4 m/s. If the isentropic efficiency of the pump is 73%, determine the work required. Solution: The mass flow rate is mAρ=±V3kgdensity(water,5,100)1000mTP====22342kgm2cm1m100016.4ms210cmmπ⎛⎞⎛⎞⎛⎞=⎜⎟
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This homework help was uploaded on 04/07/2008 for the course MANE 4010 taught by Professor Kaminski during the Spring '08 term at Rensselaer Polytechnic Institute.