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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Investigation of npsh variation of suction pumps during low and high tides in abadan water pump stat...
Investigation of npsh variation of suction pumps during low and high tides in abadan water pump station
Author : SEYED SAIED BAHRAINIAN (1), MAHDI MAHMOUDI SABOUKI (2)
ABSTRACT
This paper attempts to numerically analyze the NPSH performance of suction pumps in Abadan water pump station during
low and high tides of Bahmanshir river. This river due to its connection with Persian Gulf in south-west of Iran has low and
high tides. During low tides, suction side pressure of pumps highly decreases and results in occurrence of cavitation
phenomenon for most cases studied. To investigate the cavitation phenomenon, it is necessary to study the NPSH
performance of the pumps. For this purpose, water elevations of Bahmanshir river during a year have been measured.
These measurements are used in a numerical simulation to solve the Reynolds averaged Navier-Stokes (RANS)
equations and VOF multi-phase model. Simulation results reveal that filter installed on the inlet of suction pipe highly
reduces the suction side pressure of the pumps. Furthermore, during the river low tides when the water elevation reaches
below 4m, the amount of available NPSH is lower than the required NPSH and results in occurrence of cavitation in pump
suction side of the Abadan pump station.
File Size : 1,982,472 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 19/08/2015
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