高温H_(2)O-H_(2)系统透平设计  

Turbine design for high temperature H_(2)O-H_(2) system

作　　者：尉良川 李南宜 李梦馨 郭冰 WEI Liangchuan;LI Nanyi;LI Mengxin;GUO Bing(College of Mechanical Engineering,Qinghai University,Xining 810016,China)

机构地区：[1]青海大学机械工程学院,青海西宁810016

出　　处：《青海大学学报》2023年第1期8-14,共7页Journal of Qinghai University

基　　金：国家自然科学基金项目(52005282);青海省科学技术厅项目(2021-ZJ-954Q)。

摘　　要：针对高温镁水制氢过程中产生的高温水蒸汽-氢气(H_(2)O-H_(2))二元混合气体,为实现余热回收,提高能源利用效率,提出一种适用于高温下H_(2)O-H_(2)二元混合气体的透平设计。采用响应曲面法与计算流体动力学耦合的优化设计方法(RSM-CFD方法),设计出适用于高温H_(2)O-H_(2)混合工质的单级汽轮机叶栅结构。并应用计算流体动力学软件(CFX)对该单级汽轮机叶栅结构进行三维气动性能分析,结果表明:高温H_(2)O-H_(2)混合透平内功率为1500 W,等熵效率达到70%,该混合工质透平气动性能优良,可满足设计要求。该设计方法对其他混合工质透平设计具有一定的指导作用。High temperature water vapor-hydrogen(H_(2)O-H_(2))binary mixed gas will be produced in the process of hydrogen production from high-temperature magnesium water.A turbine design suitable for H_(2)O-H_(2)binary mixed gas at high temperature is proposed to realize waste heat recovery and improve energy utilization efficiency.A response surface method coupled with computational fluid dynamics(RSM-CFD method)is used to design a structure of single-stage turbine for high temperature H_(2)O-H_(2)mixed working medium.The three-dimensional aerodynamic performance of the structure of single-stage turbine is analyzed by computational fluid dynamics software(CFX).The results show that the internal power of high-temperature H_(2)O-H_(2)mixed turbine is 1500 W and the isentropic efficiency reaches 70%,indicating that the mixed working medium turbine has excellent aerodynamic performance which meets the design requirements.The design method has a certain guiding role in the design of other mixed refrigerant turbines.

关 键 词：H_(2)O-H_(2)混合工质 轴流透平设计 响应曲面试验 三维气动性能分析 

分 类 号：TK262[动力工程及工程热物理—动力机械及工程]