水轮机过流部件磨损破坏是建设在多泥沙河流上水电站所面临的突出工程问题。为提升水轮机抗磨损性能,以水力效率和平均磨损率为目标函数,采用贝塞尔曲线拟合水轮机转轮叶片骨线来实现转轮的几何参数化,并联合克里金近似和多目标遗传算法,构建了一种多工况多目标混流式水轮机磨损特性优化设计方法。针对原始转轮在较大开度下叶片压力面和吸力面均出现显著磨损,且压力面磨损率更高,而较小开度吸力面磨损强度显著高于压力面的问题开展优化设计。优化后的转轮叶片整体向压力面偏移,在叶片展向50%高度、流向0~50%范围内叶片变形最大;水轮机在基本保证能量特性的基础上,将平均磨损率降低7.6%以上,且转轮叶片的高磨损区域明显减小。该研究可为提升水轮机抗磨损性能提供一定的参考。
曾心成,郭志伟,钱忠东.混流式水轮机大开度下的转轮抗泥沙磨损设计[J].中国农村水利水电,2023(04).
孙龙刚,徐卓飞,郭鹏程,郑小波.高水头混流式水轮机减负荷瞬态流动特性研究[J].水利学报,2022(11).
孙龙刚,郭鹏程,罗兴锜.基于不同涡识别准则的水轮机尾水管涡带形态识别研究[J].水动力学研究与进展(A辑),2019(06).
雷恒,孙见波,徐伟,李颖,高新江.基于CFD的混流式水轮机改造流道内部流动特性研究[J].电网与清洁能源,2019(04).
李刚,侯为林,王浩,秦鸿哲,朱国俊.基于CFD的高水头水泵水轮机空化性能研究[J].电网与清洁能源,2017(04).
李颖,李国晓,刘子祺,孙见波,雷恒.混流式水轮机全流道内部流场CFD数值模拟研究[J].电网与清洁能源,2016(04).
陈雨.水力机械泥沙磨损特性及渐进磨损预测方法研究[D].兰州理工大学,2022(02).
Sharma Shubham,Gandhi Bhupendra K..Assessment of erosion wear in low specific speed Francis turbine due to particulate flow[J].Advanced Powder Technology,2023.
Pang Jiayang,Liu Huizi,Liu Xiaobing,Yang Han,Peng Yuanjie,Zeng Yongzhong,Yu Zhishun.Study on sediment erosion of high head Francis turbine runner in Minjiang River basin[J].Renewable Energy,2022.
Gautam Saroj,Acharya Nirmal,Lama Ram,Chitrakar Sailesh,Neopane Hari Prasad,Zhu Baoshan,Dahlhaug Ole Gunnar.Numerical and experimental investigation of erosive wear in Francis runner blade optimized for sediment laden hydropower projects in Nepal[J].Sustainable Energy Technologies and Assessments,2022.
Lama Ram,Gautam Saroj,Neopane Hari Prasad,Thapa Biraj Singh,Chitrakar Sailesh,Dahlhaug Ole Gunnar.Recent developments in the optimization of Francis turbine components for minimizing sediment erosion[J].IOP Conference Series: Earth and Environmental Science,2022.
Arora Naman,Kumar Arun,Kumar Singal Sunil.Technological advancement in measurements of suspended sediment and hydraulic turbine erosion[J].Measurement,2022.
Saroj Gautam,Hari Prasad Neopane,Nirmal Acharya,Sailesh Chitrakar,Biraj Singh Thapa,Baoshan Zhu.Sediment erosion in low specific speed francis turbines: A case study on effects and causes[J].Wear,2020.
R.D. Aponte,L.A. Teran,J.F. Grande,J.J. Coronado,J.A. Ladino,F.J. Larrahondo,S.A. Rodríguez.Minimizing erosive wear through a CFD multi-objective optimization methodology for different operating points of a Francis turbine[J].Renewable Energy,2020.
Adnan Aslam Noon,Man-Hoe Kim.Erosion wear on Francis turbine components due to sediment flow[J].Wear,2017.
Min-Woo Kang,Nohyun Park,Sang-Ho Suh.Numerical Study on Sediment Erosion of Francis Turbine with Different Operating Conditions and Sediment Inflow Rates[J].Procedia Engineering,2016.
Biraj Singh Thapa,Ole Gunnar Dahlhaug,Bhola Thapa.Sediment erosion in hydro turbines and its effect on the flow around guide vanes of Francis turbine[J].Renewable and Sustainable Energy Reviews,2015.
Biraj Singh Thapa,Bhola Thapa,Ole Gunnar Dahlhaug.Current research in hydraulic turbines for handling sediments[J].Energy,2012.
0
浏览量
0
下载量
0
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621