Abstract In this paper, a model of a metal hydride thermal management using phase change material in the context of a standalone solar-hydrogen system is proposed and investigated. The HOMER software is used to simulate the optimal system architecture and yearly power profiles of the electrolyser and fuel cell stacks used in a case study of a remote household in southeast Australia. A dynamic theoretical model of a phase change material arrangement for thermal management of the metal hydride hydrogen storage unit is then built in MATLAB environment to study the performance behaviour of the hydrogen storage system in this context. Based on the case used for this study, it was found that approximately equivalent to ~12% of total energy content of the hydrogen generated by the electrolyser can be saved annually by replacing an external energy thermal management system with the proposed phase change material thermal management solution. It was also found that the conductivity of phase change materials must be improved to a minimum of 1.5 W/mK, in order to make this thermal management arrangement more practical.

中文翻译：

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在独立的太阳能氢系统环境中使用相变材料进行金属氢化物热管理

摘要 在本文中，提出并研究了在独立太阳能-氢系统环境中使用相变材料的金属氢化物热管理模型。HOMER 软件用于模拟澳大利亚东南部偏远家庭案例研究中使用的电解槽和燃料电池堆的最佳系统架构和年度功率分布。然后在 MATLAB 环境中建立用于金属氢化物储氢单元热管理的相变材料布置的动态理论模型，以研究储氢系统在这种情况下的性能行为。根据本研究使用的案例，结果表明，通过将外部能量热管理系统替换为所提出的相变材料热管理解决方案，每年可以节省大约相当于电解槽产生的氢气总能量的 12% 左右。还发现相变材料的电导率必须至少提高到 1.5 W/mK，以便使这种热管理安排更实用。