Off shore oil and gas installations are deliberately lifted considerably high above the water surface in order to prevent or reduce as much as possible the action of crashing waves and other marine phenomena. Pumps for firefighting on these installations need to be submerged in the water, but due to the height of the platforms, the available pumps struggled with inadequate lift and were unable to provide as much flow as needed. In this study, the original pump in operation which was originally designed to operate in single stage was combined into a two-stage pump and its performance was evaluated using experimental data from the single stage test as a benchmark. Further internal flow analysis of the transient pressure characteristics was conducted to understanding the key areas of pressure pulsations within this pump. This will serve as guide to conducting a multi-objective optimization of the multi-stage pump to subsequently improve the performance and prolong the operational lifespan.
Vertical fire pump; Numerical simulation; Pressure Pulsations, Pump Performance Multistage
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