基于石墨烯的液体燃料分布式点火及催化微燃烧机理与特性研究

项目名称： 基于石墨烯的液体燃料分布式点火及催化微燃烧机理与特性研究

项目编号： No.51506041

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 能源与动力工程

项目作者： 李盛姬

作者单位： 杭州电子科技大学

项目金额： 21万元

中文摘要： 针对液体燃料微燃烧过程中的点火和燃烧不稳定性问题，本项目从点火方式、催化燃烧和燃烧组织的联合角度，提出添加纳米石墨烯，对液体燃料进行分布式点火及催化燃烧，并对微燃烧过程进行组织和反馈控制。研究石墨烯添加剂在液体燃料中的分散特性；通过测量单颗石墨烯基液体燃料液滴的蒸发速度、点火延迟时间、燃烧阶段、火焰锋面及传播速度、液滴表面温度、液滴粒径与燃烧时间的关系，评价石墨烯催化燃烧性能；采用微型氙灯闪光随机分布式点火和激光光镊精确分布式点火方式，测量石墨烯基液体燃料层流扩散燃烧参数，评价分布式点燃石墨烯基液体燃料的催化燃烧特性。分布式点火可提高燃料初始能量释放，降低点火温度和点火延迟时间；石墨烯催化助燃可降低反应温度，稳定燃烧，提高燃烧效率；通过对石墨烯分布形式进行反馈调整达到最佳微燃烧点火和燃烧状态，实现一种先进的组织和控制方式，突破微燃烧控制难的瓶颈，为微燃烧研究提供一种新的研究方法和手段。

中文关键词： 分布式点火；催化微燃烧；石墨烯；液体燃料；激光光镊

英文摘要： For the issues on ignition and combustion instability of liquid fuel at the micro-scale combustor, this project proposes to add nanometer-sized graphene into the liquid fuels, to ignite distributedly the fuels, and to organize and feedback control the micro combustion of the fuels, by combining distributed ignition, catalytic combustion and combustion organization. The dispersed characteristics of graphene into liquid fuels will be investigated. The catalytic performances of graphene will be evaluated by measuring the evaporation rate, the ignition delay time, the combustion stages and flame front and propagation velocity, droplet surface temperature, droplet size against the burning time of single liquid fuel droplet with the dispersive graphene addictive. By micro xenon lamp flash randomly distributed ignition and laser optical tweezers accurate distributed ignition ways, the liquid fuels will be ignited and take place laminar diffusion combustion. According to the combustion behaviors and characteristics of laminar diffusion combustion of the liquid fuels, the catalytic effect of graphene on the liquid fuels combustion will be evaluated. Distributed ignition way will be beneficial to increase the initial energy release and to decrease ignition temperature and ignition delay time. The catalytic effect of graphene on the liquid fuels combustion can decrease reaction temperature, stabilize combustion, and enhance the combustion efficiency. The distribution formation of graphene additive can be optimized by the feedback of laser optical tweezers to realize the most optimal ignition and combustion state of micro-combustion. The study can break through the bottleneck of the control difficulty in the micro-scale combustion, and present a novel method for the investigation of micro-combustion.

英文关键词： Distributed ignition;Catalytic micro-combustion;Graphene;Liquid fuels;Laser optical tweezers