中国电机工程学报2024，Vol.44Issue(1)：191-202,中插16,13.DOI:10.13334/j.0258-8013.pcsee.222155
氨燃料管状SOFCs中热冲击影响与性能的模拟研究
Simulation Study on Thermal Impact Effect and Performance of Tubular Ammonia SOFCs
摘要
Abstract
Studying the thermal impact in ammonia solid oxide fuel cells(SOFCs)will provide opportunities for cells temperature management,reliability management and performance optimization.However,there has been little research conducted to investigate the thermal impacts generated due to the complicated physical fields and complex chemical and electrochemical reactions in ammonia SOFCs.For this reason,this study analyzes the thermal impacts in single direct ammonia cracking SOFCs by establishing a simulation model and coupling the endothermic ammonia cracking reaction,electrochemical reaction,local current distribution,temperature distribution and mass flow.As a result,the fast and unbalanced ammonia cracking reaction rate is the principal reason for the generating of the thermal impacts in SOFCs,and it directly causes a temperature difference of 376 K in the whole cell.Introducing the ammonia pre-reforming reaction can improve the temperature distribution.At the same operating voltage,ammonia SOFCs which introduce the ammonia pre-reforming reaction show a more uniform temperature distribution and higher average temperature.When the ambient temperature is 800℃,96％ammonia pre-reforming SOFCs will improve the temperature extreme difference in cell anode from 62.16K to 1.0K.This study can provide theoretical basis for the optimization of ammonia SOFCs thermal management,and the modeling method presented in detail in this paper can provide ideas for the simulation research of SOFCs fueled by other hydrogen-rich fuels.关键词
固体氧化物燃料电池/耦合建模/热冲击/温度与物质分布/氨气裂解反应/预重整Key words
solid oxide fuel cell/coupling model/thermal impact/temperature and species distribution/ammonia cracking reaction/ammonia pre-reforming分类
信息技术与安全科学引用本文复制引用
赖彦辰,王哲,崔大安,韩凤翚,纪玉龙..氨燃料管状SOFCs中热冲击影响与性能的模拟研究[J].中国电机工程学报,2024,44(1):191-202,中插16,13.基金项目
国家重点研发计划项目(2023YFB4301705) （2023YFB4301705）
中央高校基本科研业务费专项项目(3132023527).National Key R&D Program of China(2023YFB4301705) （3132023527）
Fundamental Research Funds for the Central Universities(3132023527). （3132023527）
