Experimental study on hydrogen absorption and desorption performances of external temperature-controlled cylindrical solid-state hydrogen storage tanks

YING Qiang; LI Jianli; LI Jingfa; YAN Donglei; DUAN Bingyan; ZHAO Kun

doi:10.12434/j.issn.2097-2547.20240294

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Experimental study on hydrogen absorption and desorption performances of external temperature-controlled cylindrical solid-state hydrogen storage tanks

更新时间：2025-04-27

- Experimental study on hydrogen absorption and desorption performances of external temperature-controlled cylindrical solid-state hydrogen storage tanks
- Vol. 50, Issue 4, Pages: 149-156(2025)
- 作者机构：
  
  1.北京石油化工学院机械工程学院，北京 102617
  2.北京京辉绿氢新能源科技有限公司，北京 102502
- 作者简介：
- 基金信息：
- DOI：10.12434/j.issn.2097-2547.20240294
  CLC： TG139+.7;TK91
- Received：11 July 2024，
  
  Revised：2024-08-23，
  
  Published：25 April 2025
- 稿件说明：
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应强,李建立,李敬法等.外部控温圆柱形固态储氢罐吸放氢性能实验研究[J].低碳化学与化工,2025,50(04):149-156.

YING Qiang,LI Jianli,LI Jingfa,et al.Experimental study on hydrogen absorption and desorption performances of external temperature-controlled cylindrical solid-state hydrogen storage tanks[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(04):149-156.
应强,李建立,李敬法等.外部控温圆柱形固态储氢罐吸放氢性能实验研究[J].低碳化学与化工,2025,50(04):149-156. DOI： 10.12434/j.issn.2097-2547.20240294.

YING Qiang,LI Jianli,LI Jingfa,et al.Experimental study on hydrogen absorption and desorption performances of external temperature-controlled cylindrical solid-state hydrogen storage tanks[J].Low-Carbon Chemistry and Chemical Engineering,2025,50(04):149-156. DOI： 10.12434/j.issn.2097-2547.20240294.

摘要

外部控温圆柱形固态储氢罐具有结构简单、成本低、易于批量生产和可串并联组合应用等优势。利用自主设计的固态储放氢性能测试装置，对两个具有不同长径比的圆柱形储氢罐的吸放氢性能进行了测试分析，旨在评估其理论储氢性能的实际利用程度，并考察吸放氢温度和压力等参数对其吸放氢性能的影响。结果表明，在不同吸放氢工况下，两实验储罐的吸放氢速率均呈现“短时陡升-短时陡降-缓慢趋零”的3阶段特征，累计吸放氢量随时间均呈现“短时陡升-缓慢爬升”的两阶段特征，其中“短时陡升”阶段吸氢时长占吸氢总时长的不足2%，该阶段吸氢速率最高为6.545 L/s，“缓慢趋零”阶段的吸氢速率不足0.5 L/s；由于合金床层活化不完全、芯部换热不充分等原因，两储氢罐吸氢饱和度均小于60%，但可逆放氢率可达90%以上。在初始床层温度不变时，吸放氢总时长和累计吸放氢量均随初始压力升高而增大；在初始吸放氢压力不变时，吸氢总时长、累计吸氢量和吸氢饱和度均与合金初始床层温度负相关，而放氢总时长、累计放氢量和可逆放氢率均与初始床层温度正相关；适当增大储氢罐长径比，可提高综合换热效果，从而改善吸放氢性能。

Abstract

External temperature-controlled cylindrical solid hydrogen storage tanks have advantages of simple structure

low cost

easy mass production

and series parallel combination applications. The hydrogen absorption and desorption performance of two cylindrical hydrogen storage tanks with different aspect ratios were tested and analyzed by a self-designed solid-state hydrogen absorption and desorption performance testing device. The aim is to evaluate the actual utilization of their theoretical hydrogen storage capacity and investigate influence of parameters such as hydrogen absorption and desorption temperature and pressure on their hydrogen absorption and desorption performance. The results show that under different hydrogen absorption and desorption conditions

the hydrogen absorption and desorption rate of the two experimental storage tanks exhibites a three-stage characteristic of “short-term steep rise

short-term steep fall and slowly approaching zero”

while the cumulative hydrogen absorption and desorption amount shows a two-stage characteristic of “short-term steep rise and slow climb” over time. The hydrogen absorption time in the “short-term steep rise” stage accounts for less than 2% of the total hydrogen absorption time. The maximum hydrogen absorption rate in this stage is 6.545 L/s

and the hydrogen absorption rate in the “slowly approaching zero” stage is less than 0.5 L/s. Due to incomplete activation of the alloy bed and insufficient heat transfer in the core

within the operating range of this article

the hydrogen absorption saturation is less than 60%

and the reversible hydrogen desorption rate can reach over 90%. When the initial temperature of the bed remains constant

both the total hydrogen absorption and release time and the cumulative hydrogen absorption and release amount increase with the increase of the initial pressure difference. When the initial hydrogen absorption and desorption pressure remains constant

the total hydrogen absorption time

cumulative hydrogen absorption amount

and hydrogen absorption saturation are all negatively correlated with the initial temperature of the alloy bed

while the total hydrogen release time

cumulative hydrogen release amount

and reversible hydrogen release rate are positively correlated with the initial temperature of the bed. Appropriately increasing the aspect ratio can significantly improve the comprehensive heat transfer efficiency

thereby significantly enhancing the hydrogen absorption and desorption performance.

关键词

Keywords

references

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