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基于多物理场耦合仿真的碱性 电解槽极板结构优化研究.

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Title: 基于多物理场耦合仿真的碱性 电解槽极板结构优化研究.
Alternate Title: Optimization of bipolar plate structure in alkaline electrolyzer based on multi-physics simulation.
Authors: 潘灵永1 panly.oset@sinopec.com, 徐 林1, 李 红1, 叶朝希2, 温 昶2 wenchang@hust.edu.cn
Source: Clean Coal Technology. 2026, Vol. 32 Issue 2, p374-382. 9p.
Subject Terms: *Current density (Electromagnetism), *Computer simulation, *Temperature distribution, *Water electrolysis, *Electrodes, *Internal flows (Fluid mechanics), *Gas mixtures
Abstract (English): Alkaline water electrolysis (AWE) technology is currently a mainstream method for producing hydrogen from renewable energy sources, the structural improvement of the alkaline electrolyzers is of great significance for enhancing the efficiency of renewable energy hydrogen production systems. The spherical concave-convex (SCC) shaped bipolar plates are widely used in alkaline electrolyzers, their distribution and arrangement will affect the internal flow field of the electrolyzers, thereby influencing the overall performance of the alkaline electrolyzers. In order to study the influence of the SCC shaped bipolar plate and optimize its structure, a multi-physical simulation model of alkaline electrolyzer was established by using numerical simulation methods. Based on the simulation model, we propose to study the effects of three arrangements of SCC, namely, alternate arrangements, cross arrangements and sequential arrangements, and of the distance of SCC (10, 15, 20 mm) on the distribution of multi-physical fields including the electrolyte flow field, gas components, temperature field, and current density, for proposing an optimization strategy. The study found that the SCC structure can significantly improve the electrolysis reaction strength and gas component distribution on the electrode, but this structure also brings problems of bubble formation and temperature accumulation. The concave shape is more conducive to increasing the current density and gas diffusion compared to the convex shape. The structure of cross arrangements is superior to that of the alternate arrangements and sequential arrangements in improving the current density of the electrode plate. When the operating voltage is 1.8 V and the temperature is 70 ℃, the polarization current density of alkaline electrolyzer with the cross arrangement of SCC and a spacing of 15 mm is 2 004 A/m2, and the maximum temperature rise can be lowered by nearly 2 ℃ compared with other two structures, meanwhile, the structure of cross arrangements has good performance in terms of temperature uniformity, gas fraction, and flow field uniformity. [ABSTRACT FROM AUTHOR]
Abstract (Chinese): 碱性电解水技术是目前主流的可再生能源制氢方式, 研究和改善碱性水电解槽的结构性能对 提高可再生能源制氢系统效率具有重要意义。乳突状极板在碱性电解槽中得到广泛应用, 乳突的分布 与排列方式会对电解槽内部流场产生影响, 从而影响碱性电解槽整体性能。为研究乳突极板在碱性电 解槽中的作用并对其结构进行优化, 采用数值模拟方法建立碱性电解槽多物理场仿真模型, 基于仿真 模型研究极板凹形和凸形乳突间隔排列, 交叉排列, 顺次排列 3 种排列方式及其乳突间距 (10, 15, 20 mm) 对电解槽中电解液流场, 气体组分, 温度场分布及电流密度等多物理场分布的影响, 并提出优 化策略。研究发现, 乳突结构可显著改善极板的电解反应强度和气体组分分布, 但这一结构也会带来 气泡和温度积聚问题; 凹形乳突相比凸形乳突更有利于提高电流密度和气体扩散, 交叉排列的乳突结 构在改善极板电流密度方面优于间隔排列与顺次排列; 工作电压为 1.8 V, 工作温度为 70 ℃ 时, 间隔 为 15 mm 的交叉排列构型的电解槽极化电流密度可达 2 004 A / m ², 最高温升相比其他构型可降低近 2 ℃, 在温度均匀性, 气体体积分数与流场均匀性等方面均表现良好. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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DbLabel: Energy & Power Source
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: 基于多物理场耦合仿真的碱性 电解槽极板结构优化研究.
– Name: TitleAlt
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  Data: Optimization of bipolar plate structure in alkaline electrolyzer based on multi-physics simulation.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22潘灵永%22">潘灵永</searchLink><relatesTo>1</relatesTo><i> panly.oset@sinopec.com</i><br /><searchLink fieldCode="AR" term="%22徐+林%22">徐 林</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22李+红%22">李 红</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22叶朝希%22">叶朝希</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22温+昶%22">温 昶</searchLink><relatesTo>2</relatesTo><i> wenchang@hust.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Clean+Coal+Technology%22">Clean Coal Technology</searchLink>. 2026, Vol. 32 Issue 2, p374-382. 9p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Current+density+%28Electromagnetism%29%22">Current density (Electromagnetism)</searchLink><br />*<searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink><br />*<searchLink fieldCode="DE" term="%22Temperature+distribution%22">Temperature distribution</searchLink><br />*<searchLink fieldCode="DE" term="%22Water+electrolysis%22">Water electrolysis</searchLink><br />*<searchLink fieldCode="DE" term="%22Electrodes%22">Electrodes</searchLink><br />*<searchLink fieldCode="DE" term="%22Internal+flows+%28Fluid+mechanics%29%22">Internal flows (Fluid mechanics)</searchLink><br />*<searchLink fieldCode="DE" term="%22Gas+mixtures%22">Gas mixtures</searchLink>
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: Alkaline water electrolysis (AWE) technology is currently a mainstream method for producing hydrogen from renewable energy sources, the structural improvement of the alkaline electrolyzers is of great significance for enhancing the efficiency of renewable energy hydrogen production systems. The spherical concave-convex (SCC) shaped bipolar plates are widely used in alkaline electrolyzers, their distribution and arrangement will affect the internal flow field of the electrolyzers, thereby influencing the overall performance of the alkaline electrolyzers. In order to study the influence of the SCC shaped bipolar plate and optimize its structure, a multi-physical simulation model of alkaline electrolyzer was established by using numerical simulation methods. Based on the simulation model, we propose to study the effects of three arrangements of SCC, namely, alternate arrangements, cross arrangements and sequential arrangements, and of the distance of SCC (10, 15, 20 mm) on the distribution of multi-physical fields including the electrolyte flow field, gas components, temperature field, and current density, for proposing an optimization strategy. The study found that the SCC structure can significantly improve the electrolysis reaction strength and gas component distribution on the electrode, but this structure also brings problems of bubble formation and temperature accumulation. The concave shape is more conducive to increasing the current density and gas diffusion compared to the convex shape. The structure of cross arrangements is superior to that of the alternate arrangements and sequential arrangements in improving the current density of the electrode plate. When the operating voltage is 1.8 V and the temperature is 70 ℃, the polarization current density of alkaline electrolyzer with the cross arrangement of SCC and a spacing of 15 mm is 2 004 A/m2, and the maximum temperature rise can be lowered by nearly 2 ℃ compared with other two structures, meanwhile, the structure of cross arrangements has good performance in terms of temperature uniformity, gas fraction, and flow field uniformity. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Chinese)
  Group: Ab
  Data: 碱性电解水技术是目前主流的可再生能源制氢方式, 研究和改善碱性水电解槽的结构性能对 提高可再生能源制氢系统效率具有重要意义。乳突状极板在碱性电解槽中得到广泛应用, 乳突的分布 与排列方式会对电解槽内部流场产生影响, 从而影响碱性电解槽整体性能。为研究乳突极板在碱性电 解槽中的作用并对其结构进行优化, 采用数值模拟方法建立碱性电解槽多物理场仿真模型, 基于仿真 模型研究极板凹形和凸形乳突间隔排列, 交叉排列, 顺次排列 3 种排列方式及其乳突间距 (10, 15, 20 mm) 对电解槽中电解液流场, 气体组分, 温度场分布及电流密度等多物理场分布的影响, 并提出优 化策略。研究发现, 乳突结构可显著改善极板的电解反应强度和气体组分分布, 但这一结构也会带来 气泡和温度积聚问题; 凹形乳突相比凸形乳突更有利于提高电流密度和气体扩散, 交叉排列的乳突结 构在改善极板电流密度方面优于间隔排列与顺次排列; 工作电压为 1.8 V, 工作温度为 70 ℃ 时, 间隔 为 15 mm 的交叉排列构型的电解槽极化电流密度可达 2 004 A / m ², 最高温升相比其他构型可降低近 2 ℃, 在温度均匀性, 气体体积分数与流场均匀性等方面均表现良好. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.13226/j.issn.1006-6772.YS24111101
    Languages:
      – Code: chi
        Text: Chinese
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: 374
    Subjects:
      – SubjectFull: Current density (Electromagnetism)
        Type: general
      – SubjectFull: Computer simulation
        Type: general
      – SubjectFull: Temperature distribution
        Type: general
      – SubjectFull: Water electrolysis
        Type: general
      – SubjectFull: Electrodes
        Type: general
      – SubjectFull: Internal flows (Fluid mechanics)
        Type: general
      – SubjectFull: Gas mixtures
        Type: general
    Titles:
      – TitleFull: 基于多物理场耦合仿真的碱性 电解槽极板结构优化研究.
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            NameFull: 潘灵永
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            NameFull: 徐 林
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            NameFull: 李 红
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            NameFull: 叶朝希
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            NameFull: 温 昶
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            – D: 01
              M: 02
              Text: 2026
              Type: published
              Y: 2026
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              Value: 2
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            – TitleFull: Clean Coal Technology
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