Numerical investigation of particle transport characteristics in an isolated room with single-sided natural ventilation

详细信息    查看全文

• 作者：Xinming Jin ; Lijun Yang ; Xiaoze Du ; Yongping Yang
• 关键词：single ; sided ; ventilation ; particle transport ; Eulerian ; deposition
• 刊名：Building Simulation
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：9
• 期：1
• 页码：43-52
• 全文大小：3,678 KB
• 参考文献：Angel S, Parent J, Civco D, Blei A, Potere D (2011). The dimensions of global urban expansion: Estimates and projections for all countries, 2000鈥?050. Progress in Planning, 75: 53鈥?07.CrossRef
  ANSYS (2012). ANSYS FLUENT 14 User鈥檚 Guide.
  Ayo SA, Mohd-Ghazali N, Mansor S (2015). Outdoor ventilation performance of various configurations of a layout of two adjacent buildings under isothermal conditions. Building Simulation, 8: 81鈥?8.CrossRef
  Chen F, Yu SCM, Lai ACK (2006). Modeling particle distribution and deposition in indoor environments with a new drift-flux model. Atmospheric Environment, 40: 357鈥?67.CrossRef
  Chen Y, Ebenstein A, Greenstone M, Li H (2013). Evidence on the impact of sustained exposure to air pollution on life expectancy from China鈥檚 Huai River policy. PNAS, 110: 12936鈥?2941.CrossRef
  Dockery DW, Pope CA, Xu X, Spengler JD, Ware JH, Fay ME, Ferris BG, Speizer FE (1993). An association between air pollution and mortality in six U.S. cities. The New England Journal of Medicine, 329: 1753鈥?759.CrossRef
  Etheridge D, Sandberg M (1996). Building Ventilation: Theory and Measurement. Chichester, UK: John Wiley & Sons.
  Gao NP, Niu JL (2004). CFD study on micro-environment around human body and personalized ventilation. Building and Environment, 39: 795鈥?05.CrossRef
  Gao NP, Niu JL, Perino M, Heiselberg P (2008). The airborne transmission of infection between flats in high-rise residential buildings: Tracer gas simulation. Building and Environment, 43:1805鈥?817.CrossRef
  da Gra莽a GC, Chen Q, Glicksman LR, Norford LK (2002). Simulation of wind-driven ventilative cooling systems for an apartment building in Beijing and Shanghai. Energy and Buildings, 34: 1鈥?1.CrossRef
  H枚rschler I, Schr枚der W, Meinke M (2010). On the assumption of steadiness of nasal cavity flow. Journal of Biomechanics, 43: 1081鈥?085.CrossRef
  Hunt GR, Linden PP (1999). The fluid mechanics of natural ventilationdisplacement ventilation by buoyancy-driven flows assisted by wind. Building and Environment, 34: 707鈥?20.CrossRef
  Jiang Y, Alexander D, Jenkins H, Arthur R, Chen Q (2003). Natural ventilation in buildings: measurement in a wind tunnel and numerical simulation with large-eddy simulation. Journal of Wind Engineering and Industrial Aerodynamics, 91: 331鈥?53.CrossRef
  Lai ACK, Chen FZ (2007). Comparison of a new Eulerian model with a modified Lagrangian approach for particle distribution and deposition indoors. Atmospheric Environment, 41: 5249鈥?256.CrossRef
  Lai ACK, Nazaroff WW (2000). Modeling indoor particle deposition from turbulent flow onto smooth surfaces. Journal of Aerosol Science, 31: 463鈥?76.CrossRef
  Larsen TS, Heiselberg P (2007). Single-sided natural ventilation driven by a combination of wind pressure and temperature difference. In: Proceedings III of 6th International Conference on Indoor Air Quality, Ventilation & Energy Conservation in Buildings: Sustainable Built Environment, Sendai, Japan.
  Launder BE, Spalding DB (1974). The numerical computation of turbulence flows. Computing Methods Applied Mechanical Engineering, 3: 269鈥?89.CrossRef
  Li Y, Li X (2015). Natural ventilation potential of high-rise residential buildings in northern China using coupling thermal and airflow simulations. Building Simulation, 8: 51鈥?4.CrossRef
  Lo LJ, Novoselac A (2013). Effect of indoor buoyancy flow on winddriven cross ventilation. Building Simulation, 6: 69鈥?9.CrossRef
  Nazaroff WW (2004). Indoor particle dynamics. Indoor Air, 14: 175鈥?83.CrossRef
  Sippola MR, Nazaroff WW (2003). Experiments measuring particle deposition from fully developed turbulent flow in ventilation ducts. Aerosol Science and Technology, 38: 914鈥?25.CrossRef
  Wilson DJ, Kiel DE (1990). Gravity driven counter flow through an open door in a sealed room. Building and Environment, 25: 379鈥?88.CrossRef
  Zhao B, Chen JJ (2006). Numerical analysis of particle deposition in ventilation duct. Building and Environment, 41: 710鈥?18.CrossRef
  Zhao B, Zeng J (2009). A simple model to study the influence of fluctuating airflow on the effective air exchange rate when using natural ventilation. Building Simulation, 2: 63鈥?6.CrossRef
  Zhao B, Zhang Y, Li X, Yang X, Huang D (2004). Comparison of indoor aerosol particle concentration and deposition in different ventilated rooms by numerical method. Building and Environment, 39: 1鈥?.CrossRef
  
• 作者单位：Xinming Jin (1)
  Lijun Yang (1)
  Xiaoze Du (1)
  Yongping Yang (1)
  
  1. Key Laboratory of Condition Monitoring and Control for Power Plant Equipments of Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing, 102206, China
  
• 刊物类别：Engineering
• 刊物主题：Building Construction, HVAC and Refrigeration
  Engineering Thermodynamics and Transport Phenomena
  Atmospheric Protection, Air Quality Control and Air Pollution
  Environmental Computing and Modeling
  Chinese Library of Science
  
• 出版者：Tsinghua University Press, co-published with Springer-Verlag GmbH
• ISSN：1996-8744

文摘

Single-sided natural ventilation has been common in multi-family residential buildings. Current research usually presumes that the outdoor air is clean, which is not realistic under the outdoor pollution situations. In this study, the particle transport and airflow pattern in an isolated living room with the single-sided natural ventilation are numerically investigated by means of Eulerian drift-flux model combined with the Eulerian fluid method. The results indicate that larger wind speed does not necessarily achieve better ventilation effect and higher air change rate (ACH). At high wind speeds, the effect of wind direction on the room average concentration becomes more conspicuous. Small particles tend to disperse in the room more uniformly while large particles exhibit stratified distributions. The results would be useful for optimizing single-sided natural ventilation in buildings. Keywords single-sided ventilation particle transport Eulerian deposition