新型圆柱式储氢反应器的优化研究  

Optimization research on a novel cylindrical metal hydride reactor

作　　者：于震宇 家丽非 何嘉欣 荣敏君 邵正日 谢华清 Yu Zhenyu;Jia Lifei;He Jiaxin;Rong Minjun;Shao Zhengri;Xie Huaqing(School of Metallurgy,Northeastern University,Shenyang 110819,China;Department of Mechanical and Energy Engineering,Yingkou Institute of Technology,Yingkou 115000,China)

机构地区：[1]东北大学冶金学院,辽宁沈阳110819 [2]营口理工学院机械与动力工程学院,辽宁营口115000

出　　处：《可再生能源》2022年第6期845-852,共8页Renewable Energy Resources

基　　金：辽宁省自然基金项目(2019-MS-133)。

摘　　要：文章从强化合金储氢反应器换热、提高吸氢反应效率出发,对圆柱式储氢反应器的结构及反应条件进行优化。利用Comsol Multiphysics软件建立反应器模型,研究结构以及反应条件对反应器换热能力以及吸氢效率的影响。结果表明:外形的改进可以消除氢气流动的死区,提高吸氢效率;加大氢压、提高铝粉掺杂比例、添加翅片、增加翅片长度,均能不同程度地提高吸氢效率;与改进前相比,改进后的反应器吸氢反应完成99%的时间从2 005 s下降至310 s,吸氢反应速率加快了84.5%。In this study, the structure and reaction conditions of the cylindrical metal hydride reactor were optimized through strengthening the heat exchange of the reactor and improving the efficiency of absorption reaction. A numerical model in Comsol Multiphysics software was built to study the influence of structure and reaction conditions on the heat exchange capacity and hydrogen absorption efficiency of the reactor. The results showed that the improvement of the shape could eliminate the areas where hydrogen flow did not circulate and improve the efficiency of hydrogen absorption. Increasing initial pressure, increasing the proportion of aluminum foam,adding fins, and increasing the length of fins could all improve the hydrogen absorption efficiency on different levels. Compared with the original reactor, the time to complete 99% for the hydrogen absorption reaction of the improved reactor was reduced from 2 005 s to 310 s. The efficiency of hydrogen absorption reaction was increased by 84.5%.

关 键 词：吸氢反应 金属氢化物 传质传热 翅片结构 

分 类 号：TK91[动力工程及工程热物理]