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通风管道内负离子传输的数值模拟及试验验证

杨艺 周沛 赖志强

杨艺, 周沛, 赖志强. 通风管道内负离子传输的数值模拟及试验验证[J]. 环境科学研究, 2016, 29(12): 1913-1920.
引用本文: 杨艺, 周沛, 赖志强. 通风管道内负离子传输的数值模拟及试验验证[J]. 环境科学研究, 2016, 29(12): 1913-1920.
YANG Yi, ZHOU Pei, LAI Alvin C K. Simulation of the Transport of Negative Ions in Air Ventilation Ducts and Validation by Experimentation[J]. Research of Environmental Sciences, 2016, 29(12): 1913-1920.
Citation: YANG Yi, ZHOU Pei, LAI Alvin C K. Simulation of the Transport of Negative Ions in Air Ventilation Ducts and Validation by Experimentation[J]. Research of Environmental Sciences, 2016, 29(12): 1913-1920.

通风管道内负离子传输的数值模拟及试验验证

基金项目: 国家自然科学基金项目(51378447);广东省教育厅自然科学类项目(2015KQNCX055)

Simulation of the Transport of Negative Ions in Air Ventilation Ducts and Validation by Experimentation

  • 摘要: 为能有效去除通风管道系统内颗粒及气溶胶微生物,解决通风空调系统因长期使用而缺少维护和清洁,造成气溶胶微生物在系统里滋生进而形成对人体有害的生物气溶胶病原体细菌等问题,采用欧拉方法建立模拟通风管道内负离子输运过程及分布的数值模型.通过数值模拟和试验测量VI-2500型负离子发生器安装在0.2 m×0.2 m通风管道内送风速度为3~6 m/s时的负离子浓度,验证数值模型的准确性并分析负离子在通风管道内的分布规律.结果表明,负离子的模拟预测值与试验测量值误差很小.送风速度为3 m/s时,风管内负离子浓度的最低值和平均值分别为9.15×109和2.39×109 ions/m3,送风速度为6 m/s时,相应为2.37×1010和6.83×109 ions/m3.通风管道内负离子浓度随送风速度的增加而升高,送风速度一定时,通风管道内负离子浓度沿风速方向逐渐降低.当送风速度低至3 m/s时,风管内负离子浓度最低或平均值仍然可以达到有效净化细菌的负离子浓度最低数量级的推荐值(108~1010 ions/m3).研究显示,负离子数值模型能准确预测VI-2500型负离子发生器在0.2 m×0.2 m风管中产生的负离子浓度,并且发生器产生的负离子浓度能满足4.5 m长风管的净化要求.

     

  • [1] KLEPEIS N E,NELSON W C,OTT W R,et al.The national human activity pattern survey(NHAPS):a resource for assessing exposure to environmental pollutants.Journal of Exposure Analysis and Environmental Epidemiology,2011,11(3):231-252.
    [2] LEE B U,YERMAKOV M,GRINSHPUN S A.Removal of fine and ultrafine particles from indoor air environments by the unipolar ion emission.Atmospheric Environment,2004,38(29):4815-4823.
    [3] LEE S G,HYUM J,LEE S H,et al.One-pass antibacterial efficacy of bipolar air ions against aerosolized Staphylococcus epidermidis in a duct flow.Journal of Aerosol Science,2014,69:71-81.
    [4] 刘晓途,闫美霖,段恒轶,等.我国城市住宅室内空气挥发性有机物污染特征.环境科学研究,2012,25(10):1077-1084.LIU Xiaotu,YAN Meilin,DUAN Hengyi,et al.Characteristics of indoor volatile organic compounds in urban residential microenvironments in China.Research of Environmental Sciences,2012,25(10):1077-1084.
    [5] 张利文,白志鹏,游燕,等.室内多环芳烃污染源的化学组成特征研究.环境科学研究,2006,19(6):68-74.ZHANG Liwen,BAI Zhipeng,YOU Yan,et al.Characterization of chemical composition of polycyclic aromatic hydrocarbons(PAHs)emitted from indoor sources.Research of Environmental Sciences,2006,19(6):68-74.
    [6] GHOSH B,LAI H,SRIVASTAVA A.Review of bioaerosols in indoor environment with special reference to sampling,analysis and control mechanisms.Environment International,2015,85:254-272.
    [7] ZHANG Yinping,MO Jinhan,LI Yuguo,et al.Can commonly-used fan-driven air cleaning technologies improve indoor air quality? a literature review.Atmospheric Environment,2011,45(26):4329-4343.
    [8] YU Kuopin,LEE Gracewheimay,LIN Szuying,et al.Removal of bioaerosols by the combination of a photocatalytic filter and negative air ions.Journal of Aerosol Science,2008,39(5):377-392.
    [9] ARDKAPAN S R,AFSHARI A,BERGSOE N C,et al.Evaluation of air cleaning technologies existing in the Danish market:experiments in a duct and in a test room.Indoor and Built Environment,2014,23(8):1177-1186.
    [10] MAYYA Y S,SAPRA B K,KHAN A,et al.Aerosol removal by unipolar ionization in indoor environments.Journal of Aerosol Science,2004,35(8):923-941.
    [11] NOAKES C J,SLEIGH P A,BEGGS C B.Modelling the air cleaning performance of negative air ionizers in ventilated rooms//Proceedings of the 10th International Conference on Air Distribution in Rooms-Roomvent 2007.Helsinki:White Rose Research Online,2007.
    [12] FLECTCHER L A,NOAKES C J,SLEIGH P A,et al.Air ion behavior in ventilated rooms.Indoor and Built Environment,2008,17(2):173-182.
    [13] WU Yiying,CHEN Yenchi,YU Kuopin,et al.Deposition removal of monodisperse and polydisperse submicron particles by a negative air ionizer.Aerosol and Air quality Research,2015,15(3):994-1007.
    [14] SHIUE Angus,HU Shihcheng,TU Maolin.Particles removal by negative ionic air purifier in cleanroom.Aerosol and Air Quality Research,2011,11(2):179-186.
    [15] SAWANT V S,MEENA G S,JADHAV D B.Effect of negative air ions on fog and smoke.Aerosol and Air Quality Research,2012,12(5):1007-1015.
    [16] JOSHI M,SAPRA B K,KHAN A,et al.Thoron(220Rn)decay products removal in poorly ventilated environments using unipolar ionizers:dosimetric implications.Science of the Total Environment,2010,408(23):5701-5706.
    [17] SHIUE Angus,HU Shihcheng.Contaminant particles removal by negative air ionic cleaner in industrial minienvironment for IC manufacturing processes.Building and Environment,2011,46(8):1537-1544.
    [18] SAPRA B K,KOTHALKAR P S,JOSHI M,et al.Mitigating particulates emitted by mosquito coils using unipolar ionisers:implications to deposition in human respiratory tract system.Indoor and Built Environment,2011,22(2):1-13.
    [19] PARK K T,FARID M M,HWANG J.Anti-agglomeration of spark discharge-generated aerosols via unipolar air ions.Journal of Aerosol Science,2014,67:144-156.
    [20] LIANG Jialiang,ZHENG Senhong,YE Shengying.Inactivation of Penicillium aerosols by atmospheric positive corona discharge processing.Journal of Aerosol Science,2012,54:103-112.
    [21] LAI A C K,CHEUNG A C T,WONG M M L,et al.Evaluation of cold plasma inactivation efficacy against different airborne bacteria in ventilation duct flow.Building and Environment,2016,98:39-46.
    [22] RYAN K,MCCABE K,CLEMENTS N,et al.Inactivation of airborne microorganisms using novel ultraviolet radiation sources in reflective flow-through control devices.Aerosol Science and Technology,2010,44(7):541-550.
    [23] WALKER C M,KO G.Effect of ultraviolet germicidal irradiation on viral aerosols.Environmental Science & Technology,2007,41(15):5460-5465.
    [24] YANG Y,CHAN W Y,WU C L,et al.Minimizing the exposure of airborne pathogens by upper-room ultraviolet germicidal irradiation:an experimental and numerical study.Journal of the Royal Society Interface,2012,9(77):3184-3195.
    [25] WU C L,YANG Y,WONG S L,et al.A new mathematical model for irradiance field prediction of upper-room ultraviolet germicidal systems.Journal of Hazardous Materials,2011,189(1/2):173-185.
    [26] LUO Kun,LI Yan,ZHENG Chenghang,et al.Numerical simulation of temperature effect on particles behavior via electrostatic precipitators.Applied Thermal Engineering,2015,88:127-139.
    [27] WINKEL A,MOSQUERA J,AARNINK A J A,et al.Evaluation of a dry filter and an electrostatic precipitator for exhaust air cleaning at commercial non-cage laying hen houses.Biosystems Engineering,2015,129:212-225.
    [28] YAN Xiujing,WANG Haoran,HOU Zhengyang,et al.Spatial analysis of the ecological effects of negative air ions in urban vegetated areas:a case study in Maiji,China.Urban Forestry & Urban Greening,2015,14(3):636-645.
    [29] 蒙晋佳,张燕.广西部分景点地面上空气负离子浓度的分布规律.环境科学研究,2004,17(3):25-27.MENG Jinjia,ZHANG Yan.The distribution of air anion concentration above ground at some scenic sites in Guangxi.Research of Environmental Sciences,2004,17(3):25-27.
    [30] 王继梅,冀志江,隋同波,等.空气负离子与温湿度的关系.环境科学研究,2004,17(2):68-70.WANG Jimei,JI Zhijiang,SUI Tongbo,et al.Influence of temperature and humidity on negative ion concentration.Research of Environmental Sciences,2004,17(2):68-70.
    [31] 沈晋明,铙松涛,王玲玲.负离子技术对地铁站环境改善效果的研究.暖通空调,2009,39(2):122-127.SHEN Jinming,RAO Songtao,WANG Lingling.Study on improvingeffects of negative ion technique on environment in an underground railway station.Heating Ventilating & Air Conditioning,2009,39(2):122-127.
    [32] 饶松涛,沈晋明,陈巍,等.负离子对某食堂环境改善效果的实验研究.建筑热能通风空调,2008,27(3):1-5.RAO Songtao,SHEN Jinming,CHEN Wei,et al.Experimental study about the effect of negative ion on dining hall environment.Building Energy & Environment,2008,27(3):1-5.
    [33] 成霞,钟珂.不同送风方式对室内负离子分布影响的数值模拟.建筑热能通风空调,2011,30(1):50-54.CHENG Xia,ZHONG Ke.Numerical simulation of different types of ventilation′s influence on indoor negative ion spreading in air.Building Energy & Environment,2011,30(1):50-54.
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出版历程
  • 收稿日期:  2016-03-18
  • 修回日期:  2016-09-19
  • 刊出日期:  2016-12-25

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