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浙江大学学报(工学版)
J4  2010, Vol. 44 Issue (9): 1793-1797    DOI: 10.3785/j.issn.1008-973X.2010.09.026
能源与机械工程     
室内悬浮颗粒物分布及输运特性的实验研究
金晗辉1,李清平1,陈丽华1,樊建人2,吕琳 3
1.浙江大学 航空航天学院,浙江 杭州 310027；2. 浙江大学 能源清洁利用国家重点实验室,浙江 杭州 310027；
3. 香港理工大学 屋宇设备工程系 香港
Experimental study on distribution and transport of
indoor aerosol particles
JIN Han-hui1, LI Qing-ping1, CHEN Li-hua1, FAN Jian-ren2, LU Lin3
 全文: PDF 
摘要：

采用大型有限元分析软件ANSYS，对深圳福田大型地下车站主体结构标准段的钢管混凝土柱顶横纵梁、柱脚底纵梁以及柱地下1层梁等节点在梁端及柱端的弯矩、剪力和轴力等荷载作用下的力学性能进行模拟和分析.从钢管混凝土梁柱节点的受力状态出发，分析在梁端及柱端的弯矩、轴力和剪力等荷载作用下节点模型各组成构件（包括柱钢管、梁、加强环梁、承台、抗拔桩等部位）的主应力及切应力分布情况、变形情况和各个截面的内力分布情况等，与各个构件所对应的设计强度值进行对比分析，根据分析结果提出更合理的节点结构设计与加固方案.
关键词： 钢管混凝土梁柱节点;  加强环梁;  承台;  有限元分析;  力学性能    
Abstract:

The transport and distribution of aerosol particles from outdoor environment to indoor environment were experimentally studied. A scaled twodimensional experimental setup was built to simulate the indoor and outdoor environment, the timedependent concentration of the particles from outdoor with a diameter distribution of 0.310.0 μm was measured inside the chamber to illustrate the influence of the particle diameter on the distribution and dispersion of the particles. The results show that the difference of the particle concentration is observed for different ventilation situations, because the flow field configuration effectively influences the particle dispersion at certain position in indoor environment. The particle diameter also influences the concentration distribution and the dispersion of the particles. The larger the particles, the lower the dispersion efficiency is. When the inflow air velocity is high, the difference of the particle concentration distribution among the particles with different diameters is very little. When there is no inflow gas at the inlets, the difference reaches the highest level.
Key words: aerosol particles    particle concentration    diameter distribution    particle dispersion
出版日期: 2010-10-10
:  X 513  
基金资助:

国家自然科学基金资助项目（10502004)；浙江省自然科学基金资助项目（Z107332).
作者简介: 金晗辉（1972-），男，浙江义乌人，副教授，从事多相流的研究.E-mail: enejhh@emb.zju.edu.cn
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金晗辉
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引用本文:

金晗辉, 李清平, 陈丽华, 樊建人, 吕琳. 室内悬浮颗粒物分布及输运特性的实验研究[J]. J4, 2010, 44(9): 1793-1797.

JIN Han-Hui, LI Qing-Beng, CHEN Li-Hua, FAN Jian-Ren, LV Lin. Experimental study on distribution and transport of
indoor aerosol particles. J4, 2010, 44(9): 1793-1797.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2010.09.026    或    http://www.zjujournals.com/xueshu/eng/CN/Y2010/V44/I9/1793

［1］ U.S.EPA. Air quality criteria for particulate matter\[R\].Washington, DC: U.S. Environmental Protection Agency, 2004．
［2］ HOLMBERG S. Modeling of indoor environment: particle dispersion and deposition［J］.Indoor Air, 1998, 8(7): 113122．
［3］ 王昭俊,赵加宁,刘京,等.室内空气环境［M］.北京:化学工业出版社,2006:8391．
［4］ ZHAO Bin, WU Jun. Particle deposition in indoor environments: analysis of influencing factors ［J］. Journal of Hazardous Materials, 2007, 147(1/2): 439448．
［5］ LOUPA G, KIOUTSIOUKIS I.Indoor–outdoor atmospheric particulate matter relationships in naturally ventilated offices ［J］. Indoor and Built Environment, 2007, 16 (1): 6369．
［6］ LIU D L, NAZAROFF W. Particle penetration through building cracks ［J］. Aerosol Science & Technology, 2003, 37(3):565573.
［7］ RILEY W J, MCKONE T E .Indoor particulate matter of outdoor origin: importance of sizedependent removal mechanisms ［J］. Environmental Science & Technology, 2002, 36(4):200207．
［8］ FINE P M, CASS G R, SIMONEIT B R T. Characterization of fine particle emissions from burning church candles ［J］. Environmental Science &Technology, 1999, 33(14): 23522362．
［9］ SCHRIPP T, WENSING M, UHDE E. Evaluation of ultrafine particle emissions from laser printers using emission test chambers ［J］. Environmental Science & Technology, 2008, 42 (12): 43384343.
［10］ NAZAROFF W. Indoor particle dynamics［J］. Indoor Air, 2004, 14 (suppl. 7):175183.
［11］ ZHANG Zhao, CHEN Xi. Experimental and numerical investigation of airflow and contaminant transport in an airliner cabin mockup ［J］. Building and Environment, 2009, 44(1): 8594.
［12］ GADGIL A J, LOBSCHEID C, ABADIE M O. Indoor pollutant mixing time in an isothermal closed room: an investigation using CFD ［J］. Atmospheric Environment, 2003,37(39/40): 55775586．
［13］ 李艳强,吴超,易斌,等.受限空间内粉尘流动的浓度分布模型及数值模拟［J］.中国安全科学学报,2007,10(17):5055．
LI Yanqiang, WU Chao, YI Bin, et al. Mathematical models and numerical simulation of concentration distribution of dust flowing in limited space［J］.China safety Science Journal, 2007,10(17):5055．
［14］ SUN Zai,HUANFG Zhen,WANG Jiasong. Studies on the size distribution, number and mass emission factors of candle particles characterized by modes of burning ［J］. Aerosol Science, 2006, 37(11):14841496．
［15］ LAI A C K, WANG K, CHEN F Z. Experimental and numerical study on particle distribution in a twozone chamber ［J］. Atmospheric Environment, 2008, 42(8): 17171726.
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