微细通道内甲烷/湿空气滞止流燃烧机理与特性

项目名称： 微细通道内甲烷/湿空气滞止流燃烧机理与特性

项目编号： No.51276207

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 能源与动力工程

项目作者： 冉景煜

作者单位： 重庆大学

项目金额： 73万元

中文摘要： 在微细燃烧室内如何保持稳定燃烧，采用何种措施提高燃烧效率等，已成为微燃烧领域急需解决的关键问题和研究热点。本课题在已结题的国家自然科学基金项目的研究基础上,开展进一步研究。项目主要针对微型燃烧动力装置（体积约为1-4cm3）中微细燃烧室，结合实验、理论与数值分析的方法，研究微细通道内甲烷/湿空气滞止流燃烧的机理及特性。重点研究并弄清微细通道内甲烷/湿空气滞止流界面形成机理、滞止流场特性、滞止流厚度及影响因素；研究并得到进气流量、流动阻力特性、表面粗糙度、表面张力、粘性、微通道截面形状等对微细通道内滞止流燃烧的影响；弄清微细通道内甲烷/湿空气滞止流燃烧的稳定性、积碳特性、燃烧产物、燃烧效率及影响因素等；揭示微细通道内甲烷/湿空气滞止流燃烧的火焰形成及移动特性以及相关影响因素；得到微细通道内含湿量对滞止流燃烧的影响。为微细通道内碳氢燃料滞止流燃烧的进一步研究奠定基础。

中文关键词： 微通道；甲烷/湿空气；滞止流；燃烧机理；燃烧特性

英文摘要： How to keep stable combustion in the micro chamber and how to improve the combustion efficiency and so on, have become the critical problems and hot spot of research in micro-combustion field. Based on the already finished research of Project of National Natural Science Foundation, this project is to make further research about methane/moist-air stagnation flow combustion. This project is mainly aimed at the micro-chamber of the miniature power device (the volume is about 1-4 cm3), combining with the experiment, the theory and the numerical analysis methods to study the combustion mechanism and characteristics of the methane/moist-air stagnation flow in micro-channel. Mainly investigate and find out the formation mechanism of stagnation flow interface of methane/moist-air stagnation flow in micro-channel, the stagnant flow field characteristics, the thickness of stagnation flow and some influencing factors. To do research and to make out the influence of the air inlet flow, the flow resistance characteristics, the surface roughness, the surface tension, the viscidity and the shape of cross section of micro-channel on stagnation flow combustion in micro-channel are mainly tasks. At the same time, this project will also find out the combustion stability of methane/moist-air stagnation flow in micro-channel, the ca

英文关键词： micro-channel；methane/moist-air；stagnation flow；combustion mechanism；combustion characteristics