电制氢反应器径向分层策略提升氨分解率的研究

王欣; 李永辉; 陈飒; 周娜; 刘斌

doi:10.19799/j.cnki.2095-4239.2026.0692

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电制氢反应器径向分层策略提升氨分解率的研究

XXXX | 更新时间：2026-09-07

- 电制氢反应器径向分层策略提升氨分解率的研究
- Study on Enhancing Ammonia Conversion through a Radial Layering Strategy in an Electrically Heated Hydrogen Production Reactor
- 储能科学与技术 2026年页码：1-10
- 作者机构：
  
  1.石家庄铁道大学，机械工程学院，河北省低温储能重点实验室，河北省石家庄市 050043
  2.石家庄铁道大学，河北省新型储能国际联合研究中心，河北省石家庄市 050043
  3.石家庄铁道大学，材料科学与工程学院，河北省石家庄市 050043
- 作者简介：
  
  王欣（1988—），女，博士，讲师，氨分解制氢技术，E-mail：wxin88@stdu.edu.cn
  周娜（1984—），女，博士，副教授，氨氢融合催化剂，E-mail：chmzhouna@stdu.edu.cn
- 基金信息：
  
  河北省重大科技支撑计划-国际科技合作专项(24294503Z)
- DOI：10.19799/j.cnki.2095-4239.2026.0692
  中图分类号： TQ 05
- 收稿：2026-08-07，
  
  修回：2026-09-02，
  
  网络首发：2026-09-05，
- 稿件说明：
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王欣, 李永辉, 陈飒, 等. 电制氢反应器径向分层策略提升氨分解率的研究[J]. 储能科学与技术, XXXX, XX(XX): 1-10.

WANG Xin, LI Yonghui, CHEN Sa, et al. Study on Enhancing Ammonia Conversion through a Radial Layering Strategy in an Electrically Heated Hydrogen Production Reactor[J]. Energy Storage Science and Technology, XXXX, XX(XX): 1-10.
王欣, 李永辉, 陈飒, 等. 电制氢反应器径向分层策略提升氨分解率的研究[J]. 储能科学与技术, XXXX, XX(XX): 1-10. DOI： 10.19799/j.cnki.2095-4239.2026.0692.

WANG Xin, LI Yonghui, CHEN Sa, et al. Study on Enhancing Ammonia Conversion through a Radial Layering Strategy in an Electrically Heated Hydrogen Production Reactor[J]. Energy Storage Science and Technology, XXXX, XX(XX): 1-10. DOI： 10.19799/j.cnki.2095-4239.2026.0692.

摘要

氨分解反应器结构优化对强化流动传热过程、提升氨氢转化效率至关重要。本文以圆柱状电制氢反应器为研究对象，建立二维稳态多物理场耦合数值模型，采用径向分层策略，对氨分解率提升进行研究。对比分析了不同氨气入口流速下，径向分层的层间距、层数及层位置对氨分解率的影响。结果表明径向分层策略可提升氨分解率，在较大氨气入口流速下提升效果更加显著。层数越多，层间距越大，氨分解率越高。内嵌式结构对氨分解率提升明显优于外壁式结构。若协同加热层径向分层与加热功率轴向分段，可进一步提升氨分解率。氨分解率的提升归因于结构优化使得热量传递更均匀，氨分解用热匹配更精准。本文结论可为电加热氨分解反应器结构的设计与优化提供理论依据。

Abstract

Structural optimization of ammonia decomposition reactors is crucial for intensifying the coupled flow and heat-transfer processes and enhancing ammonia-to-hydrogen conversion . In this study

a cylindrical electrically heated ammonia decomposition reactor is investigated by developing a two-dimensional

steady-state multiphysics model. A radial layering strategy is introduced to enhance ammonia conversion . The effects of the spacing

number

and radial position of the layers on ammonia conversion are systematically evaluated at different ammonia inlet velocities. The results demonstrate that radial layering effectively enhances ammonia conversion

with the improvement becoming more pronounced at higher inlet velocities of ammonia. Ammonia conversion increases with both the number of layers and the spacing between layers. The embedded heater configuration exhibits a substantially greater enhancement in ammonia conversion than the wall-adjacent heater configuration. Furthermore

ammonia conversion can be further improved by coupling radial layering of the heating layers with axial segmentation of the heating power. The enhanced conversion is attributed to the more uniform heat distribution and the improved spatial matching between heat supply and the endothermic heat demand of ammonia decomposition achieved through structural optimization. These findings provide a theoretical basis for the structural design and optimization of electrically heated ammonia decomposition reactors.

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references

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