基于相变换热形式的金属氢化物储氢性能实验分析

朱作洪; 柴牧; 刘振安; 何宽芳

doi:doi:10.19912/j.0254-0096.tynxb.2024-1758

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基于相变换热形式的金属氢化物储氢性能实验分析

更新时间：2025-12-10

- 基于相变换热形式的金属氢化物储氢性能实验分析
- Issue 11, Pages: 163-170(2025)
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-1758
  CLC： K91
- Published Online：04 December 2025，
  
  Published：04 December 2025
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朱作洪, 柴牧, 刘振安, et al. 基于相变换热形式的金属氢化物储氢性能实验分析[J]. 2025, (11): 163-170.
DOI：

朱作洪, 柴牧, 刘振安, et al. 基于相变换热形式的金属氢化物储氢性能实验分析[J]. 2025, (11): 163-170. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1758.

摘要

为研究基于相变换热形式的固态金属氢化物储氢罐换热性能的影响

搭建以相变换热的固态金属氢化物储氢罐测试平台

利用相变材料在相变过程中的吸热行为对固态金属储氢罐吸氢过程进行散热

同时分析储氢合金吸氢过程中的热力学性质。最后设计不同相变材料熔点、壁厚及吸氢压力条件下的吸氢实验

测试不同相变材料熔点、壁厚及吸氢压力等关键参数对AB5型固态金属储氢罐吸氢性能的影响。结果表明：反应初期

壁面与相变材料的热传递以传导为主。随着反应的进行

相变材料发生熔化

更多的高温液态相变材料向上流动

推动上部的液体界面移动

在重力的作用下产生热浮力现象

自然对流在相变换热中占主导地位。在初始条件下

较高的吸氢压力和较厚的相变材料壁厚对吸氢效率均具有促进作用

较高的吸氢压力会加剧热交换行为

较厚的相变材料壁厚能提高热能吸收总量。同时

较低的相变材料熔点可提高罐体的吸氢效率

使罐体内部温度加速下降。

Abstract

In order to study the influence of heat transfer performance of solid-state metal hydrogen storage tank based on phase change heat transfer

an experimental platform was built with a solid-state metal hydrogen storage tank based on phase change heat transfer

and the heat absorption behavior of phase change materials in the phase change process was used to dissipate heat during the hydrogen absorption process of the solid-state metal hydrogen storage tank

and the thermodynamic properties of hydrogen storage alloys during the hydrogen absorption process were analyzed. Finally

hydrogen absorption experiments were designed at different melting points

wall thicknesses and hydrogen absorption pressures to test the effects of key parameters such as melting point

wall thickness and hydrogen absorption pressure of different phase change materials on the hydrogen absorption performance of AB solid metal hydrogen storage tank. The results show that in the early stage of the reaction

the heat transfer between the wall and the phase change material is mainly by conduction. As the reaction progresses

the phase change material melts

and more high-temperature liquid phase change material flows upward

pushing the upper liquid interface to move

and under the action of gravity

the phenomenon of thermal buoyancy will be generated

and natural convection dominates in the phase change heat. Under the initial conditions

higher hydrogen absorption pressure and thicker phase change material wall thickness both have a promoting effect on hydrogen absorption efficiency. Higher hydrogen absorption pressure will intensify heat exchange behavior

while a thicker phase change material wall thickness can increase the total amount of thermal energy absorbed. At the same time

the lower melting point of phase change materials can improve the hydrogen absorption efficiency of the tanks and accelerate the temperature drop inside the tanks.

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references

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