Effect of particle size distribution on concentration measurement with light extinction method

被引：0
|
作者：
Cui J. [1 ]
Liu X. [1 ]
Chen D. [1 ]
Xu Y. [1 ]
Han J. [1 ]
Xu M. [1 ]
机构：
[1] State Key Laboratory of Coal Combustion (Huazhong University of Science & Technology), Wuhan, 430074, Hubei Province
来源：
| 2016年 / Chinese Society for Electrical Engineering卷 / 36期
基金：
中国国家自然科学基金;
关键词：
Concentration measurement; Extinction coefficient; Light extinction method; Particles; Simulation calculation; Size distribution;
D O I：
10.13334/j.0258-8013.pcsee.160360
中图分类号：
学科分类号：
摘要：
Particulate matter (PM) emission of coal-fired power plant is one of the main factors that cause environmental pollution, So on-line monitoring of the PM concentration is of great importance.A MATLAB program was developed based on light scattering theory to study the relationship between the extinction coefficient and the size and complex refractive index of the particle. Moreover, the relationship between the particle concentration and the extinction curve was also studied. Then a self-designed particle concentration measuring device was built in the laboratory and calibrated with two standard particle samples. Three spherical silicon dioxide with different size distributions were used to investigate the impact of particle size distribution on the concentration measurement. The results show that the measurement deviation is increases with the fraction of particle with the dimensionless size factor α>30 in the sample. © 2016 Chin. Soc. for Elec. Eng.
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收藏
页码：4415 / 4421
页数：6
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