1. 山东大学 核科学与能源动力学院, 高效储能及氢能利用山东省工程研究中心,山东,济南,250061
2. 内蒙古国龙能源管理有限责任公司,内蒙古,呼和浩特,010000
[ "陈泽祺(1998—),男,黑龙江大庆人,硕士研究生,研究方向为固态储氢技术" ]
[ "高明(通信作者),男,教授,博士,E-mail:gm@sdu.edu.cn" ]
网络出版:2025-03-15,
纸质出版:2025
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陈泽祺,闫素英,张伟,杨利冬,周少斌,高明. 金属氢化物储氢反应器内反应死区优化对储氢性能影响的数值模拟动力工程学报, 2025, 45(3): 474-480 https://doi.
org/10.19805/j.cnki.jcspe.2025.240472
陈泽祺,闫素英,张伟,杨利冬,周少斌,高明. 金属氢化物储氢反应器内反应死区优化对储氢性能影响的数值模拟动力工程学报, 2025, 45(3): 474-480 https://doi. DOI: 10.19805/j.cnki.jcspe.2025.240472.
org/10.19805/j.cnki.jcspe.2025.240472 DOI:
针对金属氢化物储氢的热效应问题
建立了储氢反应器的二维仿真模型
研究了在反应死区内增设换热管束对储氢性能的影响
获得了不同尺寸反应器死区的管束优化布置方式。结果表明:在半径为45 mm的反应器中增设15根换热管后
反应死区内金属氢化物温度由339 K降至297.6~311.4 K
反应分率由0.2~0.5升至0.89以上;当反应器半径分别为35、45和55 mm时
反应死区的最优管数分别为6、15和18
与未优化前相比
储氢时间分别缩短了8.53%、9.95%和9.68%
而换热管束体积分数仅增加了0.49%、0.74%和0.60%
且优化后不同尺寸反应器储氢时间的最大变化幅度小于2.43%
因此增设管束可有效消除反应死区对储氢性能的影响。
In order to solve the problem of the thermal effect of hydrogen storage in metal hydride
a two-dimensional simulation model of the hydrogen storage reactor was developed
and the influence of adding heat exchange tube bundles in the reaction dead zone on the hydrogen storage performance was studied. The optimal arrangement of the tube bundles in the dead zone of the reactor with different sizes was obtained. Results show that when 15 tubes are added in the dead zone of 45 mm radius reactor
the temperature of the metal hydride in the dead zone decreases from 339 K to 297.6-311.4 K
and the reaction fraction increases from 0.2-0.5 to above 0.89. When the reactor radius is 35
45 and 55 mm
the optimal number of dead zone tubes is 6
15 and 18
respectively
which results in a reduction of hydrogen storage time by 8.53%
9.95% and 9.68% compared with that before optimization. The volume fraction of the tube bundles only increases by 0.49%
0.74% and 0.60%
respectively
and the maximal variation in hydrogen storage time across reactors of varying sizes is less than 2.43% after optimization. Therefore
the addition of tubes can effectively eliminate the effect of the dead zone on the hydrogen storage.
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