10kW有机工质向心透平气动设计及优化研究  

Aerodynamic Design and Optimization of 10kW ORC Radial-inflow Turbine

作　　者：李晓 张燕平[2] 朱志成[2] 黄树红 LI Xiao;ZHANG Yan-ping;ZHU Zhi-cheng;HUANG Shu-hong(China-EU Institute for Clean and Renewable Energy, Huazhong University of Science and Technology;China-EU Institute for Clean and Renewable Energy, Huazhong University of Science and Technology)

机构地区：[1]华中科技大学中欧清洁与可再生能源学院,武汉430074 [2]华中科技大学能源与动力工程学院,武汉430074

出　　处：《汽轮机技术》2018年第1期11-14,36,共5页Turbine Technology

基　　金：国家国际科技合作专项项目(ISTCP)(2014DFA60990)

摘　　要：根据给定的工质R245fa和透平输出功率10k W,利用MATLAB软件编写有机工质向心透平气动设计程序,对设计输入参数进行敏感性分析,并利用遗传优化算法(Genetic Algorithm)对一维气动设计进行全局优化,得到约束条件下最高轮周效率为85.76%。在ANSYS平台上利用一维气动设计优化结果进行三维造型设计和计算流体力学(Computational fluid dynamics,CFD)数值模拟。CFD模拟结果显示,模拟的透平输出功率与一维设计结果误差为3%,透平效率误差为2.08%,说明一维气动设计准确性。Computational program for aerodynamic design of ORC radial-inflow turbine was encoded by MATLAB,optimized for working fluid R245fa and a turbine output power of10kW,to conduct sensitivity analysis on input parameters.The unidimensional aerodynamic design was optimized by using genetic algorithm,and a maximum wheel efficiency of85.76%was achieved with constraints.The optimized result was used to run3D profile design and Computational fluid dynamics(CFD)simulations by ANSYS.It is shown that the unidimensional aerodynamic design is accurate,with minor deviations of3%on turbine output power and2.08%on turbine efficiency.

关 键 词：向心透平 气动设计 全局优化 数值模拟 

分 类 号：TK14[动力工程及工程热物理—热能工程]