Advanced flame imaging diagnostics with applications to gas furnace engineering

先进的火焰成像诊断及其在煤气炉工程中的应用

• 批准号: 2280709
• 金额: --
• 依托单位: University of Strathclyde
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2280709
• 关键词: Advanced; flame; imaging; diagnostics; applications

The aim of the project is to use advanced laser imaging of turbulent flames to improve the understanding of flame dynamics with particular application to gas furnaces. The experimental results will be used for validation of computational models developed by a post-graduate researcher working on a linked project running in parallel.Gas furnaces are commonly used for the heat treatment of metal parts for use in a variety of industries (aerospace, automotive, marine). Both the quality of the treated material and the furnace efficiency depend strongly on the flow, temperature, and species concentration fields.Improved understanding of the flame behaviour is therefore essential to optimise furnace operation and minimise harmful emissions. This project will involve close collaboration with the Advanced Forming Research Centre (AFRC) at Strathclyde.Experiments will be performed on a lab-scale burner generating turbulent flames that mimic the properties of the burners in the AFRC gas furnace, but with reduced dimensions and well-defined boundary conditions. Laser Induced Fluorescence (LIF) imaging will be used to measure intermediate concentrations including OH and CH2O, which serve as markers for flame-front location as well as flame temperature and heat-release rate. Additionally, optical flame-emission techniques will be used to study the furnace flames directly by using a high-speed camera will be equipped with filters to selectively image specific flame radicals.

该项目的目的是使用先进的湍流火焰激光成像，以提高对火焰动力学的理解，特别是对燃气炉的应用。实验结果将用于验证一名研究生研究员开发的计算模型，该研究生研究员正在并行运行一个相关项目。燃气炉通常用于各种工业（航空航天、汽车、船舶）中金属零件的热处理。被处理材料的质量和炉子的效率在很大程度上取决于流量、温度和物质浓度场。因此，提高对火焰行为的理解对于优化炉子操作和最大限度地减少有害排放至关重要。该项目将与斯特拉斯克莱德的先进成形研究中心（AFRC）密切合作，在实验室规模的燃烧器上进行实验，产生湍流火焰，模拟AFRC燃气炉中燃烧器的特性，但尺寸减小，边界条件明确。激光诱导荧光（LIF）成像将用于测量包括OH和CH2O在内的中间浓度，这些浓度可作为火焰前沿位置以及火焰温度和热释放速率的标记。此外，光学火焰发射技术将用于直接研究熔炉火焰，使用高速相机将配备过滤器，以选择性地对特定火焰自由基进行成像。