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[1]白晓静,卢 钢,闫 勇,等.煤粉火焰热混合层分形特性研究[J].燃烧科学与技术,2017,(03):225-230.[doi:DOI 10.11715/rskxjs.R201606021]
 Bai Xiaojing,Lu Gang,Yan Yong.Fractal Characteristics of Thin Thermal Mixing Layers inCoal-Fired Flame[J].Journal of Combustion Science and Technology,2017,(03):225-230.[doi:DOI 10.11715/rskxjs.R201606021]
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煤粉火焰热混合层分形特性研究()
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《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2017年03
页码:
225-230
栏目:
出版日期:
2017-06-15

文章信息/Info

Title:
Fractal Characteristics of Thin Thermal Mixing Layers in Coal-Fired Flame
作者:
白晓静 1卢 钢 2闫 勇 1 2
1. 华北电力大学控制与计算机工程学院,北京 102206; 2. 肯特大学工程与数字艺术学院,坎特伯雷,肯特 CT2 7NT,英国
Author(s):
Bai Xiaojing1Lu Gang2Yan Yong12
1.School of Control and Computer Engineering,North China Electric Power University,Beijing 102206,China; 2.School of Engineering and Digital Arts,University of Kent,Canterbury,Kent CT2 7NT,UK
关键词:
煤粉火焰热混合层分形维数火焰图像温度梯度
Keywords:
coal-fired flamethin thermal mixing layersfractal dimensionflame imagetemperature gradient
分类号:
TK16
DOI:
DOI 10.11715/rskxjs.R201606021
文献标志码:
A
摘要:
采用数字图像采集系统在煤粉燃烧实验锅炉中采集湍流火焰图像,利用形态学图像处理技术提取火焰热 混合层的分形特征,研究了一次、二次和三次风量对火焰热混合层分形特征的影响.研究表明,火焰热混合层分 形维数与一次、二次和三次风量呈现出规律的相关性,因此有可能根据火焰热混合层分形维数变化来调整一次风 量与二次风/三次风量的比值,为燃烧过程的优化与控制提供参考.
Abstract:
The images of turbulent flame were acquired by using a digital imaging system on an industry-scale pulverized coal-fired test rig.The fractal dimensions of thin thermal mixing layers in flame were computed through morphology-based flame image processing techniques.The effects of the ratios of primary air and secondary/tertiary air on fractal dimensions were characterized.The results presented in this work show that the variations of fractal dimension are closely related to the ratio changes of primary air and secondary/tertiary air. Therefore,the fractal dimensions of flame thin thermal mixing layers can be used as an important indicator for the control and optimization of a combustion process.

备注/Memo

备注/Memo:
收稿日期:2016-06-22. 基金项目:高等学校学科创新引智计划资助项目(B13009);国家自然科学基金资助项目(61673170;61603135);中央高校基本科研业 务费资助项目(2014XS42). 作者简介:白晓静(1987— ),女,博士研究生,x.bai@ncepu.edu.cn. 通讯作者:闫 勇,男,博士,教授,yongyan@ncepu.edu.cn. 网络出版时间:2007-01-12 网络出版地址:http://www.cnki.net/kcms/detail/12.1240.TK.20170112.1609.002.html.
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