摘要
用详细化学反应机理研究了微型直通道中甲烷/空气预混气体在镀Pt热壁上的催化燃烧问题.联合使用计算流体力学软件FLUENT和可以计算表面催化反应的化学反应动力学软件DETCHEM,对微型直通道中当量比在0.01～10.0范围之间的甲烷/空气预混气体的催化燃烧进行了数值模拟.计算结果表明,在微尺度催化燃烧中当量比和温度对甲烷催化转化率、转化速度有重要的影响.
Catalytic combustion of CH4/air mixture in hot micro-channel plating Pt (as catalyst) was numerically investigated by using the commercial fluid dynamics code FLUENT coupled to external subroutine DETCHEM that modeled the surface chemistry in the channel. The homogeneous reactions were neglected in calculations. Equivalence ratio of CH4/air mixture is in the range of 0.01-10.0, and constant wall temperature was adopted as a boundary condition. The results indicated that equivalence ratio and temperature have important influence on catalytic combustion of CH4.
出处
《燃烧科学与技术》
EI
CAS
CSCD
北大核心
2005年第1期1-5,共5页
Journal of Combustion Science and Technology
基金
国家自然科学基金资助项目(50376027)
教育部博士点基金资助项目(20010003067).
关键词
微尺度
催化燃烧
数值模拟
Air
Boundary conditions
Catalysis
Chemical reactions
Combustion
Mathematical models
Methane
Mixtures
Models
Numerical analysis
Platinum
