2017 Volume 11 Issue 9
Article Contents
Abstract
References
Previous Article Next Article

CHEN Donglin, YANG Chenhao, WU Kang, LIU Jing. Influences of turbulent agglomeration of fine particles under flue gas parameters[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5084-5090. doi: 10.12030/j.cjee.201609226
Citation: CHEN Donglin, YANG Chenhao, WU Kang, LIU Jing. Influences of turbulent agglomeration of fine particles under flue gas parameters[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5084-5090. doi: 10.12030/j.cjee.201609226
shu

Influences of turbulent agglomeration of fine particles under flue gas parameters

  • 1.

    Key Laboratory of Efficient and Clean Energy Utilization of Hunan Province, School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410076, China

  • Received Date: 07/03/2017
    Accepted Date: 28/09/2016
    Available Online: 26/08/2017
    Fund Project:
  • The turbulent agglomeration of fine particles is an effective method in the control of emissions of fine particles from coal-fired flue gas. The agglomeration of fine particles was studied with different flue gas parameters, including velocity, temperature, particle concentration and moisture content of the flue gas. The results show that turbulent intensity is significantly improved by increasing flue gas velocity, promoting the agglomeration rate of fly ash particles. When the flue gas velocity was 16 m·s-1, the agglomeration rate of PM2.5 was 44.51%. The flue gas temperature has a limited effect on the agglomeration rate of fine particles above the acid dew point. The higher concentration of particles, the greater number of particles per unit volume in flue. This increases the probability of collisions between particles, and improves the agglomeration rate of fly ash. With a particle concentration of 35 mg·L-1, the agglomeration rate of PM2.5 increased to 52.48%. The lower moisture content of flue gas has little effect on the agglomeration process of fly ash particles.
  • [1] 熊桂龙,李水清,陈晟,等.增强PM2.5脱除的新型电除尘技术的发展[J].中国电机工程学报,2015,35(9):2217-2223

    Google Scholar Pub Med

    [2] YAO Q,LI S Q,XU H W,et al.Studies on formation and control of combustion particulate matter in China:A review[J].Energy,2010,35(11):4480-4493

    Google Scholar Pub Med

    [3] 靳星.静电除尘器内细颗粒物脱除特性的技术基础研究[D].北京:清华大学,2013

    Google Scholar Pub Med

    [4] 高翔鹏,徐明厚,姚洪,等.燃煤锅炉可吸入颗粒物排放特性及其形成机理的试验研究[J].中国电机工程学报,2007,27(17):11-17

    Google Scholar Pub Med

    [5] 刘含笑,郦建国,姚宇平,等.PM2.5湍流聚并方法研究进展[J].中国环保产业,2013(4):27-30

    Google Scholar Pub Med

    [6] DURU P,KOCH D L,COHEN C.Experimental study of turbulence-induced coalescence in aerosols[J].Journal of Multiphase Flow,2007,33(9):987-1005

    Google Scholar Pub Med

    [7] 杨振楠,郭庆杰.气固射流作用下可吸入燃煤飞灰颗粒的团聚[J].高校化学工程学报,2011,25(2):225-230

    Google Scholar Pub Med

    [8] 刘忠,刘含笑,冯新新,等.湍流聚并器流场和颗粒运动轨迹模拟[J].中国电机工程学报, 2012, 32(14):71-75

    Google Scholar Pub Med

    [9] 章鹏飞,米建春,潘祖明.烟气流速和装置元件角度对细颗粒湍流聚并的影响[J].中国电机工程学报,2016,36(10):2714-2720

    Google Scholar Pub Med

    [10] CHEN D, WU K,MI J.Experimental investigation of aerodynamic agglomera tion of fine ash particles from a 330 MW PC-fired boiler[J].Fuel, 2016,165:86-93

    Google Scholar Pub Med

    [11] 李云飞.燃煤烟气细颗粒物湍流团聚的研究[D].哈尔滨:哈尔滨工业大学,2014

    Google Scholar Pub Med

    [12] 许世森.细微尘粒的预团聚对旋风分离器高温除尘性能影响的实验研究[J].动力工程,1999,19(4):60-64

    Google Scholar Pub Med

    [13] 柳冠青.范德华力和静电力下的细颗粒离散动力学研究[D].北京:清华大学, 2011

    Google Scholar Pub Med

    [14] 魏凤,张军营,王春梅,等.煤燃烧超细颗粒物团聚促进技术的研究进展[J].煤炭转化,2003,26(3):27-31

    Google Scholar Pub Med

    [15] 樊建人,胡桂林,姚军,等.气固两相圆柱绕流的直接数值模拟[J].工程热物理学报, 2003, 24(3):433-436

    Google Scholar Pub Med

    [16] 罗坤,王浩,樊建人,等.颗粒对湍流影响的无量纲分析[J].工程热物理学报,2012,33(10):1711-1714

    Google Scholar Pub Med

    [17] 岑可法,樊建人.工程气固多相流的理论及计算[M].杭州:浙江大学出版社,1990:303-375

    Google Scholar Pub Med

    [18] 孙德帅,郭庆杰,司崇殿.气体射流作用下燃煤可吸入颗粒的团聚[J].过程工程学报,2009,9(3):437-440

    Google Scholar Pub Med

    [19] 熊桂龙,杨林军,郭惠,等.水汽相变耦合撞击流作用下细颗粒物的脱除特性[J].东南大学学报(自然科学版),2012,42(5):904-909

    Google Scholar Pub Med

  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索
Export Citation
PDF
XML

Article Metrics

Article views(2253) PDF downloads(489) Cited by(0)

Access History

Influences of turbulent agglomeration of fine particles under flue gas parameters

  • Received Date: 07/03/2017
  • Accepted Date: 28/09/2016
  • Available Online: 26/08/2017
Fund Project:

Abstract: The turbulent agglomeration of fine particles is an effective method in the control of emissions of fine particles from coal-fired flue gas. The agglomeration of fine particles was studied with different flue gas parameters, including velocity, temperature, particle concentration and moisture content of the flue gas. The results show that turbulent intensity is significantly improved by increasing flue gas velocity, promoting the agglomeration rate of fly ash particles. When the flue gas velocity was 16 m·s-1, the agglomeration rate of PM2.5 was 44.51%. The flue gas temperature has a limited effect on the agglomeration rate of fine particles above the acid dew point. The higher concentration of particles, the greater number of particles per unit volume in flue. This increases the probability of collisions between particles, and improves the agglomeration rate of fly ash. With a particle concentration of 35 mg·L-1, the agglomeration rate of PM2.5 increased to 52.48%. The lower moisture content of flue gas has little effect on the agglomeration process of fly ash particles.

    HTML

Reference (19)

Catalog

  • HTML

/

DownLoad:  Full-Size Img  PowerPoint
Return

All rights reserved: Reesearch Center for Eco-Environmental Sciences,Chinese Academy of Sciences Copyright © 1997-2016

Address:  Postcode: 100085 Phone: 010-62941074 E-mail: cjee@rcees.ac.cn

Supported by: Beijing Renhe Information Technology Co. Ltd  Technical support: info@rhhz.net