叶片形状对径向式透平波浪发电效率的影响  

EFFECT OF BLADE SHAPE ON WAVE POWER GENERATION EFFICIENCY OF RADIAL TURBINE

作　　者：伍儒康 吴必军[2] 李猛 薛牧文 陈毅 张艳芹 Wu Rukang;Wu Bijun;Li Meng;Xue Muwen;Chen Yi;Zhang Yanqin(Yanshan University-Nanjing Institute of Technology Joint Research Institute,Nanjing Institute of Technology,Nanjing 211167,China;Key Laboratory of Renewable Energy,Chinese Academy of Sciences,Guangzhou 510640,China;School of Mechanical Engineering,Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]南京工程学院,燕山大学-南京工程学院联合研究院,南京211167 [2]中国科学院广州能源研究所,广州510640 [3]南京工程学院机械工程学院,南京211167

出　　处：《太阳能学报》2024年第2期218-224,共7页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51906099,51879253);南京工程学院高层次人才引进基金(YJK201944);江苏省自然科学基金(BK20201045)。

摘　　要：从后弯管的实验数据出发,设计4个透平,以研究叶片形状对径向式透平用于波浪能发电时转换效率的影响。通过数值分析方法得到4个透平在稳定流动中的性能参数,结果表明4个透平的性能相接近。基于稳定流动计算结果,使用准稳态方法分析4个透平在不稳定流动中的性能,结果表明由于存在反向流动现象,4个透平在不稳定流中的效率存在很大差异。后弯管空气透平的设计不仅要考虑效率,还要考虑反向流动时产生的扭矩。Based on the experimental data of a small backward bend duct buoy(BBDB),4 radial turbines are designed to study the influence of blade shape on the energy conversion efficiency of radial turbines used for wave power generation.The performance parameters of the 4 turbines in steady flow are obtained by numerical analysis.Results show that performance of the 4 turbines is similar.Based on the numerical analysis results in steady flow,performance of the 4 turbines in unsteady flow are analyzed by using the quasisteady analysis method.Results show that efficiency of the 4 turbines in the unsteady flow is different due to the reverse flow.Therefore,to design the air turbine used in BBDB should consider not only the efficiency but also the torque generated by reverse flow.

关 键 词：波浪能 转换效率 透平 后弯管 反向流动 

分 类 号：TK14[动力工程及工程热物理—热能工程]