Burning characteristics of anode off gas from high temperature fuel cell
WANG Baojun
LI Guoxiang
Abstract：To accurately analyze the burning characteristics of the anode off gas from high temperature fuel cells,a three-parameter model is developed using Chemkin,the chemical reaction dynamics software.The effects of pre-heating temperature,hydrogen content,fuel conversion rate,and reaction selectivity on the premixed flame spread velocity and ignition delay time are simulated,basing on the dynamics of chemical reaction of synthetic gases and component characteristics of the anode off gas from high temperature fuel cell.The simulation results show that the pre-heating temperature has a greater impact on the ignition delay time,the pre-heating temperature is reduced by 100 K,the ignition delay time is increased exponentially.The gas component has a greater impact on the flame spread velocity than on the ignition delay time.Gas components have a greater impact on the flame spread velocity than on the ignition delay time.The higher the reaction conversion rate is,the lower the laminar flame spread velocity is,the longer the ignition delay time is.As the reaction selectively moves forward,the hydrogen content in the fuel decreases,flame spread velocity increases,and the ignition delay time decreases.
Keywords：low heat value anode off gaspre-heatingflame spread velocityignition delay time
Publication Date：2024-12-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 40-45 )