대한건축학회논문집:계획계 (Journal of the Architectural Institute of Korea Planning & Design)

  • 제29권10호
  • /
  • Pages.275-282
  • /
  • 2013
  • /
  • 1226-9093(pISSN)
  • /
  • 2384-177X(eISSN)
대한건축학회 (Architectural Institute of Korea)
권호 표지
DOI QR코드

DOI QR Code

실험과 CFD를 활용한 건물 내 미세먼지 재부유 및 확산해석 방법

Experimental and Computational Fluid Dynamics (CFD) Methods to Analyze Particle Resuspension and Dispersion in Buildings

  • 최동희 (경일대학교 건축공학과) ;
  • 강동화 (펜실베니아 주립대학교 건축공학과)
  • 발행 : 2013.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

The objective of the study is to develop methodology to evaluate particle resuspension and dispersion in building environment. Experimental chamber system to measure particle resuspension rates from reservoir materials was suggested. The resuspension chamber was designed to provide both aerodynamic disturbance and mechanical disturbance to cause particle resuspension. The particle disperser chamber system was also suggested for preparation of dust loaded reservoirs. The results from the chamber experiment showed that the resuspension chamber system can characterize resuspension rates of quartz from stainless steel plate, carpet and linoleum. It also showed that particle resuspension rates differ from reservoir materials to materials. For evaluation of indoor particle dispersion, computational fluid dynamics (CFD) technique based on Lagrangian method was suggested. The CFD model was validated by comparing the simulated results with the experimental data including the distribution of indoor particle concentration.

키워드

참고문헌

  1. Hinds, W.C., Aerosol Technology: Properties, Behavior, and Measurement of Airborne Particles. Wiley, New York. 1982
  2. US EPA. Exposure Factors Handbook, National Centre for Environmental Assessment, Washington, DC, 1997
  3. Morawska, L., Salthammer, T., Indoor Environment: Airborne Particles and Settled Dust, John Wiley & Sons, Weinheim, p.35, 2007
  4. Baron, P. A., Willeke, K., Aerosol measurement: principles, techniques, and applications, Wiley, 2001
  5. Ormstad, H.. Suspended particulate matter in indoor air: adjuvants and allergen carriers. Toxicology, Vol. 152, p.p. 53-68, 2000 https://doi.org/10.1016/S0300-483X(00)00292-4
  6. Thatcher, T. L., Layton, D. W., Deposition, resuspension, and penetration of particles within a residence, Atmospheric Environent, Vol. 29, p.p.1487-1497, 1995 https://doi.org/10.1016/1352-2310(95)00016-R
  7. Ferro, A. R., Kopperud, R. J., Hildemann, L. M.. Source strengths for indoor human activities that resuspend particulate matter, Environmental Science and Technology Vol. 38, p.p.1759-1764, 2004 https://doi.org/10.1021/es0263893
  8. Luoma, M., Batterman, S. A., Characterization of particulate emissions from occupant activities in offices, Indoor Air Vol. 11, p.p.35-48, 2001 https://doi.org/10.1034/j.1600-0668.2001.011001035.x
  9. Cheng, K. C., Goebes, M. D., Hildemann, L. M., Association of size-resolved airborne particles with foot traffic inside acarpeted hallway, Atmospheric Environment, Vol.44, p.p.2062-2066, 2010 https://doi.org/10.1016/j.atmosenv.2010.02.027
  10. Gomes, C., Freihaut, J., Bahnfleth, W., Resuspension of allergen-containing particles under mechanical and aerodynamic disturbances from human walking, Atmospheric Environment, Vol.41, p.p.5257-5270, 2007 https://doi.org/10.1016/j.atmosenv.2006.07.061
  11. Eisner, A. D., Rosati, J., Wiener, R.,. Experimental and theoretical investigation of particle-laden airflow under a prosthetic mechanical foot in motion, Building and Environment, Vol.45, p.p.878-886, 2010 https://doi.org/10.1016/j.buildenv.2009.09.007
  12. Wu Y. L., Davidson, C. I., Russell, A. G., Controlled wind tunnel experiments for particle bounceoff and resuspension, Aerosol Science and. Technololgy, Vol.17, p.p.245-262, 1992 https://doi.org/10.1080/02786829208959574
  13. Mukai, C., Siegel, J. A., Novoselac, A., Impact of airflow characteristics on particle resuspension from indoor surfaces, Aerosol Science and Technology, Vol.43, p.p.1022-1032, 2009 https://doi.org/10.1080/02786820903131073
  14. Chen F, Simon CMYu, Lai Alvin CK., Modeling particle distribution and deposition in indoor environments with a new drift-flux model, Atmospheric Environment, Vol.40, p.p.357-367, 2006 https://doi.org/10.1016/j.atmosenv.2005.09.044
  15. Zhang Z, Chen Q., Experimental measurements and numerical simulation of fine particle transport and distribution inventilated rooms, Atmospheric Environment, Vol.40, p.p.3396-3408, 2006 https://doi.org/10.1016/j.atmosenv.2006.01.014