KIEAE Journal

Korea Institute of Ecological Architecture and Environment (한국생태환경건축학회)
권호 표지

A prediction of indoor pollutant concentration using method mass transfer coefficient in multi-layered building materials

복합 건축자재의 물질전달계수를 이용한 실내 오염물질 농도 예측방법

  • Published : 2007.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

In order to predict the indoor air pollutant, the VOCs emission rate is used through small chamber in the design process. However, the small chamber method has limitations as the convective mass transfer coefficient, the most important factor when predicting VOCs contamination of indoor air, is different between the small chamber result and the measured data in the actual building. Furthermore, the existing studies which analyzed mass transfer coefficient in the small chamber were directed on the small chambers developed at the time and FLEC(Field and Laboratory Emission Cell), thus, are different from the current small chamber which has been changed with improvements. The purpose of this study is to determine the emission rate of pollutant in multi-layered building materials, and predict the indoor pollutant concentration through the CFD(Computational of Fluid Dynamics) and CRIAQ2 based on the mass transfer coefficient on singled-layered building material by using the current small chamber widely used in Korea. Futhermore, this study used the new convective mass transfer coefficient(hm') which indicates the existing convective mass transfer coefficient(hm) including VOC partition coefficient(k). Also, formaldehyde was selected as target pollutant.

Keywords

References

  1. Huang, Haghighat, 2002, Modeling of volatile organic compounds emission from dry building materials, Building and Environment, vol. 37, Issue 12, pp. 1349-1360. 2002 https://doi.org/10.1016/S0360-1323(01)00116-0
  2. 김태연외 2명, 실내중앙농도에 대한 오염물질 발생원의 기여율 해석, 대한건축학회 학회지, vol. 23, Issue 2, 2003
  3. Huang, Haghighat, 2002, Modeling of volatile organic compounds emission from dry building materials, Building and Environment, vol. 37, Issue 12, pp. 1349-1360. 2002 https://doi.org/10.1016/S0360-1323(01)00116-0
  4. 김태연외 2명, 실내중앙농도에 대한 오염물질 발생원의 기여율 해석, 대한건축학회 학회지, vol. 23, Issue 2, 2003
  5. 김태연, 오염물질 발생원의 실내 공기질에 관한 기여율 해석, 대한건축학회 학회지, vol. 29, Issue 2, 2004
  6. 박병윤외 2명, 온돌용 마루와 가구에서 발생하는 휘발성유기화합물 농도감소 예측에 관한 연구, 대한건축학회 학회지, vol. 21, Issue 6, 2005
  7. ASHRAE Fundamentals, 1993
  8. Fariborz H. and Hongyu, H., 2003, "Integrated IAQ model for prediction of VOC emissions from building material", Building and Environment, vol. 38, Issue 6, pp. 1007-1017 https://doi.org/10.1016/S0360-1323(03)00064-7
  9. Zhang, L. Z., Niu, J. L., "Modeling VOCs emissions in a room with a single-zone multi-component multi-layer technique", Building and Environment, vol. 39, Issue 5, pp.5203. 2004
  10. 김태연, 오염물질 발생원의 실내공기질에 관한 기여율해석, 대한건축학회, vol. 20, Issue 2, pp. 211, 2004