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# Sea Water Pump Station Basin Mathematical Hydraulic Model Test (CFD Analysis)

[+] Author Affiliations

Iran Marine Industrial Co. (SADRA), Tehran, Iran

Paper No. OMAE2009-79245, pp. 331-342; 12 pages
doi:10.1115/OMAE2009-79245
From:
• ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering
• Volume 5: Polar and Arctic Sciences and Technology; CFD and VIV
• Honolulu, Hawaii, USA, May 31–June 5, 2009
• Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
• ISBN: 978-0-7918-4345-1 | eISBN: 978-0-7918-3844-0

## abstract

Background and aim: A sea water intake, with original design of the six drum screen and twenty sea water pump intake with very different flow rate connected to header bay. The capacity of Origin Sea water intake including huge pump station and drum screen is 200,000 m3/hr. The purpose of the mathematical hydraulic model test of the sea water pumping station is to verify that the basin allows a good operating condition for each pump. To ensure a good operating condition for each pump, the design of the seawater basin has to insure: • A correct filter working; • Low transversal velocities; • A flow without vortex. Method and material: The mathematical model of the basin allows to know the flow and to verify: • The main dimensions of the pumping station; • The distance between the inlet ducts and the filters; • The distance between the filters and pump chambers. Result: in the first basin, the flow patterns no problems. Only swirl at the exit of culverts and near the free surface, and two areas where the flow has no velocity were observed. In the downstream other filters, we observe also a circulation that generates a tangential velocity. Conclusion: The mathematical model of the sea water pumping station has allowed calculating three cases (without and with filter stopped) for the low water level and nominal flow rate. In most difficult case, we observe some recirculation, mainly near the free surface, without more influence on principal flow. In the three cases, the distribution of the flow rate between the drum screens is uniform; the gap is inferior to 2%. At the entry of the pump chambers, the velocity fluctuations and the angle are low. Consequently, the secondary flows in pump chambers will be limited.

Topics: Pumps , Seawater

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