Channel centerline temperature data pertaining to catalytically supported thermal combustion systems with thermally conductive materials

The channel centerline temperature data are obtained for the catalytically supported thermal combustion systems with thermally conductive materials. The system is modeled as two channels and a catalyst layer with very small dimensions. These dimensions could be increased or decreased as desired for particular applications. This design analysis treats some of these dimensions as variables, and some as constrained by combustion stability considerations. In order for flame holding to occur, methane and air must be premixed and provided in an appropriate velocity region to reside. Methane and air are perfectly premixed with a temperature of 300 degrees Kelvin before they enter the system prior to combustion. The strength of the mixture composition is typically expressed in terms of its equivalence ratio. Platinum is catalytically-active towards promoting the heterogeneous surface reaction. Complex modeling methods and algorithms are required for the system due not only to the complex geometry of the system but also the complex physicochemical processes involved. Steady-state analyses are performed, variations in system pressure and temperature are determined in accordance with the ideal gas law, and the system operates in the laminar flow regime due to the small Reynolds numbers. The maximum Reynolds number is less than 360 at the flow inlet and 960 when the velocity of the flow of the fluid is highest in the channels. The model is implemented in commercially available software FLUENT to obtain the solution of the problem. Detailed chemistry is included in the model. Detailed chemical mechanisms are playing an increasingly important role in developing chemical kinetics models for combustion. Detailed chemical mechanisms are incorporated into the reacting flow for the system. The homogeneous combustion is modeled with the detailed chemical mechanism for methane oxidation in CHEMKIN format. Detailed heterogeneous chemistry in SURFACE-CHEMKIN format is included in the model. The rates of the elementary reactions involved in the combustion process are determined by Arrhenius kinetic expressions. Numerical simulations with the detailed chemical mechanism are typically computationally expensive. The detailed chemical mechanism is invariably stiff and therefore its numerical integration is computationally costly. Contributor: Junjie Chen, E-mail address: [e-mail], ORCID: 0000-0002-5022-6863, Department of Energy and Power Engineering, School of Mechanical and Power Engineering, Henan Polytechnic University, 2000 Century Avenue, Jiaozuo, Henan, 454000, P.R. China本数据集获取了采用导热材料的催化辅助热燃烧系统的通道中心线温度数据。该系统被建模为两个通道与一个极小型催化层，其尺寸可根据特定应用需求灵活调整。本次设计分析将部分尺寸设为变量，其余则受燃烧稳定性约束。为实现火焰驻留（flame holding），甲烷与空气需预先充分混合，并在合适的流速区间内停留。燃烧前，甲烷与空气以300开尔文的温度完全预混合后进入系统。混合气的组分强度通常以当量比（equivalence ratio）表征。铂对多相表面反应（heterogeneous surface reaction）具有催化活性。由于该系统不仅几何结构复杂，且涉及复杂的物理化学过程，因此需要采用复杂的建模方法与算法。研究开展了稳态分析，依据理想气体定律计算系统压力与温度的变化；由于雷诺数较低，系统运行于层流工况（laminar flow regime）。流体入口处的最大雷诺数小于360，而通道内流体流速峰值处的最大雷诺数则小于960。本模型采用商用软件FLUENT搭建以求解该问题。模型中包含详细化学反应机理。详细化学反应机理在燃烧化学动力学模型的开发中愈发重要。详细化学反应机理被引入该系统的反应流模拟中。均相燃烧（homogeneous combustion）采用CHEMKIN格式的甲烷氧化详细化学反应机理进行建模。模型中还包含SURFACE-CHEMKIN格式的详细多相化学反应机理。燃烧过程中涉及的基元反应（elementary reactions）速率由阿伦尼乌斯动力学表达式确定。采用详细化学反应机理的数值模拟通常计算成本高昂。详细化学反应机理通常具有刚性（stiff），因此其数值积分的计算开销极大。数据集贡献者：陈俊杰，电子邮箱：[e-mail]，ORCID：0000-0002-5022-6863，河南理工大学机械与动力工程学院能源与动力工程系，中国河南省焦作市世纪大道2000号，邮编454000。