化工学报2025，Vol.76Issue(3)：1264-1274,11.DOI:10.11949/0438-1157.20240865
考虑多物理场耦合特性的固体氧化物燃料电池瞬态特性研究
Research on transient characteristics of solid oxide fuel cells considering coupling features of multiphysics fields
摘要
Abstract
In order to solve the problems of fossil energy depletion and environmental pollution,solid oxide fuel cells(SOFC)have been rapidly developed as efficient energy conversion equipment.A multiphysics coupling model of a planar SOFC was established using COMSOL software,which comprehensively considers the interactions among electrical,thermal,flow,and mass transfer fields to study the local transient response characteristics of the SOFC under varying conditions of output voltage,air flow rate,and fuel flow rate.The results show that when the output voltage was set at 0.5,0.6,and 0.8 V,and fuel flow rate suddenly dropped to zero,the power density changed by-67%,-60%,and-56%,respectively.The average temperature changes and trends in the functional layers of the cell showed significant differences.The impact of fuel flow rate on cell performance was notably greater than that of changes in air flow rate.Due to the direct involvement of electrochemical reactions in the cell and rapid reactions at the electrode surfaces,the power density responded most quickly to changes in output voltage.This study provides important theoretical foundations and technical support for the optimization design of SOFC.关键词
固体氧化物燃料电池/COMSOL/瞬态响应/动态仿真/传热Key words
solid oxide fuel cell/COMSOL/transient response/dynamic simulation/mass transfer分类
信息技术与安全科学引用本文复制引用
齐珂,王迪,谢喆,陈东升,周云龙,孙灵芳..考虑多物理场耦合特性的固体氧化物燃料电池瞬态特性研究[J].化工学报,2025,76(3):1264-1274,11.基金项目
国家自然科学基金项目(52306004) （52306004）
