新型复合金属氢分离膜强化氢传输的数值模拟  

Numerical study of hydrogen mass transfer on new palladium composite membrane

作　　者：张浩[1] 廖全[1] 

机构地区：[1]重庆大学动力工程学院,低品位能源利用技术及系统教育部重点实验室,重庆400044

出　　处：《电源技术》2014年第2期269-271,285,共4页Chinese Journal of Power Sources

基　　金：国家自然科学基金资助项目(51006131)

摘　　要：建立了不同结构新型复合金属膜强化氢传输的物理数学模型,并应用数值模拟方法模拟了强化氢传输过程与机理,针对不同结构的流动传质特性进行了分析和比较。结果表明:微肋结构能够扰动并破坏壁面边界层,对模型中的传质效果有一定提高。由此提出了效果更佳的新矩形肋片结构复合金属膜,分析得出这种特殊结构复合金属膜的传质效果大大优于传统复合金属膜。Physical and mathematics model of the hydrogen separation in a new palladium composite membrane were established on the condition of different structural, and the corresponding flow field and mass transfer field were numerically simulated. Then, flow and mass transfer characteristics were analyzed and compared with different structures. The computed results show that the boundary layer can be disturbed and destroyed by micro fin construction, and the mass transfer purpose can be achieved. Therefore, a new rectangle rib structure was putted forward based on the former results, and simulated results show an effective improvement of mass transfer when the new structure is applied.

关 键 词：钯复合膜 透氢 强化传质 数值模拟 

分 类 号：TM911[电气工程—电力电子与电力传动]