|本期目录/Table of Contents|

[1]谢正超,王 飞,张海丹,等.基于可见光-近红外多光谱图像的火焰场参数重建[J].燃烧科学与技术,2016,(06):552-557.[doi:DOI 10.11715/rskxjs.R201511006]
 Xie Zhengchao,Wang Fei,Zhang Haidan,et al.Simultaneous Reconstruction of Three Dimensional Field ParametersBased on the Visible and Near-Infrared Multi-Spectral Flame Images[J].Journal of Combustion Science and Technology,2016,(06):552-557.[doi:DOI 10.11715/rskxjs.R201511006]
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基于可见光-近红外多光谱图像的火焰场参数重建()
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《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2016年06
页码:
552-557
栏目:
出版日期:
2016-12-15

文章信息/Info

Title:
Simultaneous Reconstruction of Three Dimensional Field Parameters Based on the Visible and Near-Infrared Multi-Spectral Flame Images
作者:
谢正超王 飞张海丹严建华岑可法
浙江大学热能工程研究所能源清洁利用国家重点实验室,杭州 310027
Author(s):
Xie ZhengchaoWang FeiZhang HaidanYan JianhuaCen Kefa
State Key Laboratory of Clean Energy Utilization,Institute for Thermal Power Engineering, Zhejiang University,Hangzhou 310027,China
关键词:
多光谱火焰图像温度颗粒水蒸气重建
Keywords:
multi-spectral flame imagetemperatureparticlewater vaporreconstruction
分类号:
TK31
DOI:
DOI 10.11715/rskxjs.R201511006
文献标志码:
A
摘要:
提出一种新的同时测量火焰温度场、颗粒浓度场和气体浓度场的非接触光学测量技术.在稳态火焰周围安 装4 台电荷耦合器件(CCD),火焰的多光谱图像是由在CCD 前安装的滤波片拍摄得到,使用的滤波片通过波长分 别为0.436,μm(蓝光)、0.700,μm(红光)和1.87,μm(水吸收峰).建立了一个在三波长下的辐射反问题模型.通过水 对波长的选择吸收性分离出颗粒吸收系数和水的吸收系数.利用统计窄带模型得到水浓度,利用Mie 散射理论得到 颗粒浓度.模拟两个算例,得到从水浓度场、颗粒浓度场到温度场重建误差依次减小.当颗粒体积分数低于1×10-6 时,水浓度场可以准确重建出来.如果要精确测量水浓度,则需要辐射路径测量误差不大于1%,.
Abstract:
An original technique is presented for noncontact three-dimensional temperature,particle concentration and water vapor concentration field measurement in steady flame using radiative information captured by four cameras.The multi-spectral flame images are obtained by cameras which are equipped with three filters whose center wavelengths are 0.436,μm(blue),0.700,μm(red)and 1.87,μm(water absorption peak),respectively.An inverse problem model is built to calculate the radiative transfer equation under three wavelengths.The particle absorption coefficient and the water vapor absorption coefficient are separated through water by wavelength selective absorption. The statistical narrow band(SNB)model is introduced to obtain gas concentration,and the particle concentration is calculated by Mie theory.Two numerical simulation cases are adopted to validate the technique.It is found that temperature reconstruction is the best,followed by particle concentration reconstruction and then water concentration reconstruction.When the particle concentration is below 1×10-6 ,the water concentration could be reconstructed successfully.The length error of radiation route should be below 1%, for the accurate water concentration reconstruction.

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备注/Memo

备注/Memo:
收稿日期:2016-03-18. 基金项目:国家重点基础研究发展计划(973计划)资助项目(2011CB201506);国家自然科学基金资助项目(51276165). 作者简介:谢正超(1989— ),男,博士研究生,11427003@zju.edu.cn. 通讯作者:王 飞,男,博士,教授,wangfei@zju.edu.cn.
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