TY - JOUR
T1 - Effect of ventilation strategies for removing indoor house dust
T2 - An experimental and simulation study
AU - Lu, Yang
AU - Yoshino, Hiroshi
AU - Takaki, Rie
AU - Kurihara, Genta
N1 - Funding Information:
This research is supported by the Ministry of Land, Infrastructure, Transport and Tourism of Japan and the Fundamental Research Funds for the Central Universities of China, as a part of a technology guide related to a residential construction development promotion business program on “Technological development on reduction of health problems caused by house dust” and Inter Central corporation consignment research. The authors would like to express sincere appreciation to all the people related to this research.
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - House dust includes the mold spores or corpses and feces of the mite, among other things, which would cause allergies, asthma, and unspecific hypersensitivities. The possibility of having an allergic reaction to house dust is particularly high for children. In this study, experiments and simulations were performed to study the flow and diffusion fields affected by different location and shape of outlets. Two kinds of ventilation strategies were considered, i.e., ceiling exhaust and floor-level slit exhaust. In the experiments, for the two cases, the characteristics of airflow within the whole room are generally similar except for the airflow close to the outlet. Riboflavin particles were used as the house dust; the amount of particles in the ceiling exhaust was a little larger than that of the slit exhausted after particles decreased to the same level as the background. Flow and diffusion fields were investigated by computational fluid dynamics (CFD) simulations. The characteristics of airflow are similar for both experimental and simulation results. The particles with a diameter of 0.5-3.0 μm in the experimental data and calculated values showed good agreement. It was concluded that floor-level slit exhaust ventilation strategy produced less house dust in the whole room than the ceiling exhaust did.
AB - House dust includes the mold spores or corpses and feces of the mite, among other things, which would cause allergies, asthma, and unspecific hypersensitivities. The possibility of having an allergic reaction to house dust is particularly high for children. In this study, experiments and simulations were performed to study the flow and diffusion fields affected by different location and shape of outlets. Two kinds of ventilation strategies were considered, i.e., ceiling exhaust and floor-level slit exhaust. In the experiments, for the two cases, the characteristics of airflow within the whole room are generally similar except for the airflow close to the outlet. Riboflavin particles were used as the house dust; the amount of particles in the ceiling exhaust was a little larger than that of the slit exhausted after particles decreased to the same level as the background. Flow and diffusion fields were investigated by computational fluid dynamics (CFD) simulations. The characteristics of airflow are similar for both experimental and simulation results. The particles with a diameter of 0.5-3.0 μm in the experimental data and calculated values showed good agreement. It was concluded that floor-level slit exhaust ventilation strategy produced less house dust in the whole room than the ceiling exhaust did.
UR - http://www.scopus.com/inward/record.url?scp=80052508384&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80052508384&partnerID=8YFLogxK
U2 - 10.1080/10789669.2011.585420
DO - 10.1080/10789669.2011.585420
M3 - Article
AN - SCOPUS:80052508384
SN - 2374-4731
VL - 17
SP - 410
EP - 418
JO - Science and Technology for the Built Environment
JF - Science and Technology for the Built Environment
IS - 4
ER -