Performance optimization of centrifugal pump based on particle swarm optimization and entropy generation theory

Centrifugal pumps are frequently utilized in general machinery, but they have issues with low efficiency, unstable operation, and high-power consumption actual engineering, making performance improvements necessary. In this paper, the particle swarm algorithm is to find optimal solution among Pareto front solutions obtain most suitable impeller for centrifugal pump lowest entropy generation highest efficiency as optimization objectives. Based on theory, energy losses of original model optimized compared analyzed. The results show that volute two areas largest ratio, decreases by 5.41%, increases 3.89%. Turbulent wall important causes hydraulic losses. Most within occur mainly at leading edge trailing blade. As flow rate increases, closer distribution high cover impeller, more serious This paper can provide a theoretical reference pumps.