力学与实践 ›› 2022, Vol. 44 ›› Issue (4): 809-817.DOI: 10.6052/1000-0879-22-126

• 氢进万家专题 • 上一篇    下一篇

小型储氢罐低温吸附特性影响因素及解决方案研究

程友良(), 张盼, 何传金   

  1. 华北电力大学动力工程系,河北保定 071003
    华北电力大学河北省低碳高效发电技术重点实验室,河北保定 071003
    华北电力大学保定市低碳高效发电技术重点实验室,河北保定 071003
  • 收稿日期:2022-03-01 出版日期:2022-08-08 发布日期:2022-08-17
  • 作者简介:程友良,教授,研究方向为清洁能源利用理论与技术、工程热物理及其他学科交叉以及流体力学与叶轮机械等。E-mail: ylcheng001@163.com
  • 基金资助:
    国家自然科学基金(10272044,10672056)和国家海洋局可再生能源专项资金 (9100214023) 资助项目。

RESEARCH ON THE ISSUES AND SOLUTIONS OF LOW-TEMPERATURE ADSORPTION CHARACTERISTICS OF SMALL HYDROGEN STORAGE TANKS

CHENG Youliang(), ZHANG Pan, HE Chuanjin   

  1. Department of Power Engineering, North China Electric Power University, Baoding 071003, Hebei, China
    Hebei Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University, Baoding 071003, Hebei, China
    Baoding Key Laboratory of Low Carbon and High Efficiency Power Generation Technology, North China Electric Power University, Baoding 071003, Hebei, China
  • Received:2022-03-01 Online:2022-08-08 Published:2022-08-17

摘要:

为解决小型储氢罐在低温吸附过程中的高温积聚问题,本文首先对装有不同吸附材料金属有机骨架MOF-177和活性炭AX-21-33的小型储氢罐的充放气特性进行有限元数值模拟。研究发现,在充气过程中,热效应和压缩功产生的热积聚现象会严重影响氢气的吸附效果。对此,本文提出在储氢罐内部加设换热肋片的解决方案,通过改变换热肋片的位置和间隔,分析其对充气过程中罐内温度、压力和吸附量产生的影响。结果表明:该方案能有效降低储氢罐内的温度,也能解决底部高温聚集问题。本文研究结果对氢能应用具有一定的指导意义。

关键词: 储氢罐, 金属有机骨架, 活性炭, 吸附储氢, 换热肋片

Abstract:

In order to solve the problem of heat accumulation in the low temperature adsorption process of small hydrogen storage tanks, it first carried out the finite element numerical simulation of the charging and degassing characteristics of small hydrogen storage tanks equipped with different adsorption materials metal-organic frameworks MOF-177 and activated carbon AX-21-33. Studies have found that during the inflation process, the heat accumulation caused by thermal effects and compression work will seriously affect the adsorption of hydrogen. In this regard, this article proposes a solution to add heat exchange fins inside the hydrogen storage tank. By changing the position and spacing of the heat exchange fins, the effect on the temperature, pressure and adsorption capacity in the tank during the inflation process is analyzed. The simulation results show that this scheme can effectively reduce the temperature in the hydrogen storage tank, and at the same time solve the problem of heat accumulation at the bottom. The results of this study are of value for the application of hydrogen energy.

Key words: hydrogen storage tank, metal-organic frameworks, activated carbon, adsorption hydrogen storage, heat exchange fins

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