介观尺度多孔介质燃烧室内火焰分布的电容层析成像

CIESC Journal ›› 2012, Vol. 20 ›› Issue (2): 329-336.

• 第六届世界工业过程层析成像会议选文 • 上一篇下一篇

介观尺度多孔介质燃烧室内火焰分布的电容层析成像

陈琪¹, 刘石²

¹ School of Mechanical Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China ² State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China

收稿日期:2011-12-02 出版日期:2012-04-28 发布日期:2012-02-05

Flame imaging in meso-scale porous media burner using electrical capacitance tomography

CHEN Qi¹, LIU Shi²

¹ School of Mechanical Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China ² State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China

Received:2011-12-02 Online:2012-04-28 Published:2012-02-05

摘要/Abstract

摘要： This study was conducted to investigate the characteristics of meso-scale combustion. The technique of electrical capacitance tomography (ECT) was used to locate flame position and monitor the effect corresponding to varied air/fuel ratio in a meso-scale combustor. Combustion phenomena including igniting, quenching and unsteady combustion have been visualized using ECT. The method of metallization protecting ECT sensor from high tem-perature damage and the novel calibration method adapted to ECT monitoring of unknown permittivity flame have been shown to be successful. At the same time, electrical nature of combustion and dielectric characteristics of hy-drocarbon flame were studied. The relationship between flame permittivity and state parameters of combustion gas was demonstrated preliminarily.

关键词: electrical capacitance tomography, meso-scale burner, combustion, flame permittivity

Abstract: This study was conducted to investigate the characteristics of meso-scale combustion. The technique of electrical capacitance tomography (ECT) was used to locate flame position and monitor the effect corresponding to varied air/fuel ratio in a meso-scale combustor. Combustion phenomena including igniting, quenching and unsteady combustion have been visualized using ECT. The method of metallization protecting ECT sensor from high tem-perature damage and the novel calibration method adapted to ECT monitoring of unknown permittivity flame have been shown to be successful. At the same time, electrical nature of combustion and dielectric characteristics of hy-drocarbon flame were studied. The relationship between flame permittivity and state parameters of combustion gas was demonstrated preliminarily.

Key words: electrical capacitance tomography, meso-scale burner, combustion, flame permittivity

陈琪, 刘石. 介观尺度多孔介质燃烧室内火焰分布的电容层析成像[J]. CIESC Journal, 2012, 20(2): 329-336.

CHEN Qi, LIU Shi. Flame imaging in meso-scale porous media burner using electrical capacitance tomography[J]. , 2012, 20(2): 329-336.

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介观尺度多孔介质燃烧室内火焰分布的电容层析成像

Flame imaging in meso-scale porous media burner using electrical capacitance tomography

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