Novel corrugated fins were proposed and applied in metal hydride devices in this paper. To simulate the hydrogen absorption process, we first validated the numerical models based on the finite element method. Then we investigated the effect of device geometry and turbulent flow of cooling water on the absorption performance. The optimized device with 5 mm fin height, 2 mm fin length and 13 fins was obtained, and the absorption time for 0.8 wt% saturation level was reduced by 32% compared with the traditional device with circular fins. It is found that the turbulent flow of cooling water has a great effect on enhancing the hydrogenation rate, and critical Reynolds number is 11,860. The heat transfer resistance drops from 0.140 K/W to 0.023 K/W when Reynolds number increases from 1780 to 11,860. Furthermore, the optimal turbulence modeling strategy was analyzed in detail. The predictions derived from the L-VEL model with wall distance initialization are far more accurate than those of other turbulence models and have the lowest computational time of 2118 s. Our new device is easy to be manufactured and has great potential for various alloy loads as well.

本文提出了新型波纹翅片并将其应用于金属氢化物装置。为了模拟吸氢过程，我们首先验证了基于有限元方法的数值模型。然后我们研究了装置几何形状和冷却水湍流对吸收性能的影响。得到了鳍片高度为5mm、鳍片长度为2mm、鳍片数量为13个的优化器件，与传统的圆形鳍片器件相比，0.8 wt%饱和水平的吸收时间减少了32%。发现冷却水的湍流对提高加氢率有很大的作用，临界雷诺数为11860。当雷诺数从 1780 增加到 11,860 时，传热阻力从 0.140 K/W 下降到 0.023 K/W。此外，详细分析了最优湍流建模策略。预测来自具有壁距初始化的L- VEL 模型比其他湍流模型准确得多，计算时间最短，为 2118 s。我们的新设备易于制造，并且对各种合金负载也具有巨大的潜力。