CH 4 /Air反扩散射流火焰多组分同步PLIF诊断

Q4 Engineering

实验流体力学 Pub Date : 2018-01-01 DOI:10.11729/syltlx20170138

Shuang Chen, Jan Kapusta Lukasz, Wubin Weng, Tie Su, Xiaobo Tu, Li Zhongshan

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引用次数: 0

Abstract

The simultaneous multi-species Planar Laser Induced Fluorescence technique plays an important role in studying the flame structure and the two-dimensional distribution of intermediate species in combustion. The experimental system of OH/CH2O/Acetone-PLIF was built in order to study the CH4-Air inverse diffusion jet (IDJ) flame. The system consists of two sets of lasers, two intensifier-CCD cameras, a temporal controller and several lenses. The strategy of fluorescence excitation, the method of synchronous timing control and image calibration procedures are discussed. The IDJ flame was studied using the simultaneous multi-species PLIF technique, and the reaction zone, pre-heating zone and fuel zone of IDJ flame were determined. Experimental results suggest that the IDJ flame is different from either the normal diffusion flame or the premixed jet flame. The behavior of this type of flame reveals similarity to the partially premixed flame. Compared to OH chemilumiscence images, simultaneous multi-species PLIF can provide more detail and information about the flame structure and it has huge potential in fundamental combustion studies and industrial burner experiments (Less)

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CH 4 /Air反扩散射流火焰多组分同步PLIF诊断

同时多组分平面激光诱导荧光技术对于研究燃烧过程中火焰结构和中间组分的二维分布具有重要意义。为了研究ch4 -空气反扩散射流(IDJ)火焰，建立了OH/CH2O/丙酮- plif实验体系。该系统由两组激光器、两个增强ccd摄像机、一个时间控制器和几个镜头组成。讨论了荧光激发策略、同步定时控制方法和图像校准程序。采用同步多组分PLIF技术对IDJ火焰进行了研究，确定了IDJ火焰的反应区、预热区和燃料区。实验结果表明，IDJ火焰既不同于普通扩散火焰，也不同于预混射流火焰。这种火焰的行为与部分预混火焰相似。与OH化学发光图像相比，同时多组分PLIF可以提供更多关于火焰结构的细节和信息，在基础燃烧研究和工业燃烧器实验中具有巨大的潜力(Less)。

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来源期刊

实验流体力学 Engineering-Aerospace Engineering

CiteScore

1.00

自引率

0.00%

发文量

2815

期刊介绍： Journal of Experiments in Fluid Mechanics is a synthesis of academic and technical developments publically released bimonthly. The present editor in chief is academician Jialing Le. The main interest of the journal is placed on new information， cutting edge achievements and novel trends in the field of experimental fluid mechanics， particularly aerodynamics. Journal of Experiments in Fluid Mechanics is elected as Chinese key journal in the field of aeronautics and astronautics. It is included by notable international databases such as EI Compendex （2007-2012）， Chemical Abstracts ‘CA’， Russian Abstracts Journal‘РЖ’， and Japanese Science and Technology Abstracts Letter‘JST’， as well as domestic databases such as Chinese Science Quotation Data System，Chinese Academic Journal Evaluation Data System，Chinese Academic Journal Abstracts，Chinese Mechanics Abstracts，Chinese Academic Journals （disc），ChinaInfo， and so on.