Pelton turbine: Identifying the optimum number of buckets using CFD  

作　　者：Audrius ZIDONIS George A.AGGIDIS 

机构地区：[1]Lancaster University Renewable Energy Group and Fluid Machinery Group, Engineering Department, Lancaster University

出　　处：《Journal of Hydrodynamics》2016年第1期75-83,共9页水动力学研究与进展B辑（英文版）

基　　金：the support of Lancaster University Renewable Energy Group and Fluid Machinery Group

摘　　要：A numerical case study on identifying the optimum number of buckets for a Pelton turbine is presented. Three parameters： number of buckets, bucket radial position and bucket angular position are grouped since they are found to be interrelated. By identifying the best combination of the radial and angular position for each number of buckets it is shown that reduction in the number of buckets beyond the limit suggested by the available literature can improve the efficiency and be beneficial with regard to the manufacturing complexity and cost perspective. The effect of this reduction in the number of buckets was confirmed experimentally.A numerical case study on identifying the optimum number of buckets for a Pelton turbine is presented. Three parameters： number of buckets, bucket radial position and bucket angular position are grouped since they are found to be interrelated. By identifying the best combination of the radial and angular position for each number of buckets it is shown that reduction in the number of buckets beyond the limit suggested by the available literature can improve the efficiency and be beneficial with regard to the manufacturing complexity and cost perspective. The effect of this reduction in the number of buckets was confirmed experimentally.

关 键 词：HYDROPOWER Pelton impulse turbines numerical modelling number of buckets OPTIMIZATION 

分 类 号：TK735.1[交通运输工程—轮机工程] V211.3[动力工程及工程热物理—流体机械及工程]