碱性水电解
电解
制氢
氢
计算流体力学
高压电解
电解槽
工艺工程
分解水
流体力学
电解水
储能
可再生能源
核工程
化学
机械
热力学
电极
物理
工程类
功率(物理)
催化作用
电气工程
电解质
物理化学
有机化学
光催化
生物化学
作者
Damien Le Bideau,Philippe Mandin,Mohamed Benbouzid,Myeongsub Kim,Mathieu Sellier,Fabrizio Ganci,Rosalinda Inguanta
出处
期刊:Energies
[MDPI AG]
日期:2020-07-02
卷期号:13 (13): 3394-3394
被引量:27
摘要
Hydrogen storage is a promising technology for storage of renewable energy resources. Despite its high energy density potential, the development of hydrogen storage has been impeded, mainly due to its significant cost. Although its cost is governed mainly by electrical energy expense, especially for hydrogen produced with alkaline water electrolysis, it is also driven by the value of the cell tension. The most common means of electrolyzer improvement is the use of an electrocatalyst, which reduces the energy required for electrochemical reaction to take place. Another efficient means of electrolyzer improvement is to use the Computational Fluid Dynamics (CFD)-assisted design that allows the comprehension of the phenomena occurring in the electrolyzer and also the improvement in the electrolyzer’s efficiency. The designed two-phase hydrodynamics model of this study has been compared with the experimental results of velocity profiles measured using Laser Doppler Velocimetry (LDV) method. The simulated results were in good agreement with the experimental data in the literature. Under the good fit with experimental values, it is efficient to introduce a new physical bubble transfer phenomenon description called “bubble diffusion”.
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