A centrifugal pump is used to pump water at 25 ° C from a reservoir open to the atmosphere with the free water surface located 2m above the center of the pump inlet. 3.5m long piping system from the tank to the pump; It consists of a galvanized iron pipe with an internal diameter of 20 cm and an average internal roughness height of 0.15 mm. Local missing elements on top of the piping system are as follows; Sharp edged inlet (Kk = 0.85), flanged smooth 3 man 90 ° elbow (Kk = 0.3 each) and one flanged full open globe valve Kg = 8). Since the maximum volumetric flow that can be pumped without cavitation is 30 L/ s, find the net positive charge on the usable suction. (Evaporation pressure for water at 25 ° temperature: 3.169 kPa) (Atmospheric pressure: 101.3 kPa) ((P=997 kg/m³)) (a = 1.05) (Dynamic viscosity of water at 25 ° temperature: 8,91.10-kg/ms)

A centrifugal pump is used to pump water at 25 ° C from a reservoir open to the atmosphere with the free water surface located 2m above the center of the pump inlet. 3.5m long piping system from the tank to the pump; It consists of a galvanized iron pipe with an internal diameter of 20 cm and an average internal roughness height of 0.15 mm. Local missing elements on top of the piping system are as follows; Sharp edged inlet (Kk = 0.85), flanged smooth 3 man 90 ° elbow (Kk = 0.3 each) and one flanged full open globe valve Kg = 8). Since the maximum volumetric flow that can be pumped without cavitation is 30 L/ s, find the net positive charge on the usable suction. (Evaporation pressure for water at 25 ° temperature: 3.169 kPa) (Atmospheric pressure: 101.3 kPa) ((P=997 kg/m³)) (a = 1.05) (Dynamic viscosity of water at 25 ° temperature: 8,91.10-kg/ms)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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