【作者】 夏永放； 史俊瑞； 徐有宁；

【Author】 Xia Yongfang;Shi Junrui;Xu Youning;Shenyang Institute of Engineering,Key Laboratory of Clean combustion for Electricity Generation and Supply Technology of Heating of Liaoning;

【机构】 沈阳工程学院辽宁省洁净燃烧发电与供热技术重点实验室；

【摘要】 通过实验研究贫氢气/空气低速过滤燃烧波逆向传播不稳定性特性。研究不同工况下燃烧波及温度波传播特点,确定了燃烧波稳定传播和不稳定传播的运行参数界限,氢气体积浓度Y_H2=13%工况下,燃烧波跳跃传播不稳定性发生的过滤速度临界值u_g,cr=0.9¹.0m·s^-1;氢气体积浓度Y_H2=14%、Y_H2=15%工况下,对应的过滤速度临界值分别为u_g,cr=0.8m·s-1、u_g,cr=0.5m·s-1。更多还原

【Abstract】 The counter-flow combustion wave propagation instability of low-velocity filtration combustion is experimentally studied with lean hydrogen/air.The characteristics of both combustion wave and temperature wave are investigated under different conditions.The limitation of operating parameters is determined for criteria of the combustion wave stability.Under the condition of hydrogen volume concentration Y_H2=13%,the critical filtration velocity is u_g,cr = 0.9¹.0m·s^-1 for the emergence of combustion wave instability.Under the condition of hydrogen volume concentration Y_H2=14%,Y_H2=15%,the critical filtration velocity is u_g,cr = 0.8m·s^-1,u_g,cr=0.5m·s^-1,respectively,for the emergence of combustion wave instability.更多还原