颗粒粒径分布对全散射法测量颗粒质量浓度的影响 - 中国电机工程学报.pdfVIP

第 36 卷 第 16 期 中 国 电 机 工 程 学 报 Vol.36 No.16 Aug. 20, 2016 2016 年 8 月 20 日 Proceedings of the CSEE ©2016 Chin.Soc.for Elec.Eng. 4415 DOI ：10.13334/j.0258-8013.pcsee.160360 文章编号：0258-8013 (2016) 16-4415-07 中图分类号：TK 16 颗粒粒径分布对全散射法测量颗粒质量浓度的影响 崔江，刘小伟，陈栋，徐义书，韩金克，徐明厚 (煤燃烧国家重点实验室(华中科技大学) ，湖北省 武汉市 430074) Effect of Particle Size Distribution on Concentration Measurement With Light Extinction Method CUI Jiang, LIU Xiaowei, CHEN Dong, XU Yishu, HAN Jinke, XU Minghou (State Key Laboratory of Coal Combustion (Huazhong University of Science Technology), Wuhan 430074, Hubei Province, China) ABSTRACT: Particulate matter (PM) emission of coal-fired 关键词：颗粒；浓度测量；粒径分布；全散射法；消光系数； power plant is one of the main factors that cause environmental 模拟计算 pollution, So on-line monitoring of the PM concentration is of 0 引言 great importance .A MATLAB program was developed based on light scattering theory to study the relationship between the 燃煤电厂烟尘排放是大气污染最主要的因素 extinction coefficient and the size and complex refractive index 之一，近年来随着电厂烟尘排放标准越来越严格， of the particle. Moreover, the relationship between the particle 针对电厂烟尘排放控制的研究越来越多[1]，排放烟 concentration and the extinction curve was also studied. Then a 尘颗粒浓度的测量也越来越重要，近年来国内外学 self-designed particle concentration measuring device was built 者在颗粒物浓度监测方面做了很多研究，如采用 β in the laboratory and calibrated with two standard particle samples. Three spherical silicon dioxide with different size 射线法、压电振动法、光散射法等[2-8] 。其中全散射 distributions were used to investigate the impact of particle size 法是基于 Lambert-Beer 定律，当一束平行单色光照 distrib