Fundamental Studies of Interacting Droplet Combustion of Low Grade Fuels Using Novel Laser Diagnostics

使用新型激光诊断技术对低品级燃料的相互作用液滴燃烧进行基础研究

• 批准号: 9261296
• 负责人: William Bachalo
• 金额: $ 4.83万
• 依托单位: Aerometrics Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-15 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9261296&HistoricalAwards=false
• 关键词: Fundamental; Studies; Interacting; Droplet; Combustion

This program deals with the design, development, and application of novel laser diagnostic techniques for the study of spray/drop vaporization and combustion. The overall objective is accurate determination of such parameters as droplet temperature and temperature gradient profiles of the gas media surrounding one or more interacting burning droplets to provide fundamental knowledge regarding their combustion. The specific objectives of the Phase I program are: a) Improve and further develop an existing test facility for burning fuel droplet streams; b) Develop the point-diffraction interferometric technique in conjunction with digital image processing techniques to define the gas temperature field around a stream of burning drops; c) Apply rainbow thermometry to measure instantaneous liquid droplet temperatures; d) Investigate the feasibility of automatically integrating all this information to allow full reconstruction of the temperature field surrounding the droplets; and, e) Perform a preliminary assessment of measurement errors associated with the technique. The ultimate potential product is an instrument which would enable acquisition of fundamental information regarding the structure of the thermal fields surrounding interacting burning fuel droplets (notably, low-grade fuels) which is of paramount importance in development of future combustion systems which could utilize these fuels. Potential applications include development/use of a novel fuel injector system for existing internal combustion engines which would enable them to use low grade fuels at high efficiency and with minimal production of pollutants. These applications could significantly reduce U.S. dependency on foreign oil imports, and would help ensure world competitiveness and environmental responsibility in the use of low grade fuels.

该计划涉及设计，开发和 应用新型激光诊断技术进行研究 喷雾/液滴蒸发和燃烧。 整体 目标是准确确定这些参数， 液滴温度和温度梯度分布 包围一个或多个相互作用的燃烧液滴的气体介质 提供有关其燃烧的基本知识。 第一阶段方案的具体目标是： 并进一步发展现有的燃料燃烧试验设施 液滴流; B）开发点衍射 干涉测量技术与数字图像相结合 确定气体温度场的处理技术 围绕燃烧的水滴流; c）应用彩虹测温法 测量瞬时液滴温度; d） 研究自动整合所有 这些信息可以完全重建 围绕液滴的温度场;以及，e）执行 测量误差的初步评估 技术。 最终的潜在产品是一种工具， 能够获取有关 相互作用的热场结构 燃烧的燃料液滴（特别是低级燃料）， 对未来燃烧发展至关重要 可以利用这些燃料的系统。 潜在 应用包括开发/使用新型燃料喷射器 用于现有内燃机的系统，该系统 使他们能够以高效率使用低级燃料， 污染物的最小产量。 这些应用程序可以 大大减少美国对外国石油进口的依赖， 并将有助于确保世界竞争力和环境 使用低级燃料的责任。