Large elevation changes affect offshore cooling-water design

Offshore platform designs need to account properly for elevation changes in the cooling-water systems. The elevation changes directly affect the seawater supply pump’s ability to deliver cooling water to users high above the pump.The elevation changes also can cause low vacuum pressures at high points unless the system is designed to avoid their formation.The cases examined in this article hold the seawater system flow characteristics and the pump curve constant while determining system performance with different strategies for managing the elevation changes. Knowledge of these strategies allows the characterization of the seawater system flow and selection of the pump curve for the...

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