CFD prediction of the effect of slit exhaust ventilation system on the distribution of house dust with experimental validation

Y. Lu, H. Yoshino, R. Takaki, G. Kurihara, A. Mochida, H. Yonekura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of this study is to predict effect of slit exhaust ventilation system on the indoor distribution of house dust with experiments and CFD. The ventilation system includes inlet located at the ceiling and outlet of slit exhaust installed at corner between wall and floor. Experiments and simulations were performed to investigate the flow and diffusion fields that are affected by this slit exhaust ventilation system. The characteristics of airflow with experiments and CFD are generally similar except airflow at the location of impinging flow. Riboflavin particles were used as the house dust. After slit exhaust ventilation system is operated, the decay rate of the particles becomes faster than that before the ventilation system is on, and the particles with diameter of 0.5-3.0 urn in the experimental data and calculated values showed good agreement.

Original languageEnglish
Title of host publication7th International Symposium on Heating, Ventilating and Air Conditioning - Proceedings of ISHVAC 2011
Pages914-919
Number of pages6
Publication statusPublished - 2011 Dec 1
Event7th International Symposium on Heating, Ventilating and Air Conditioning, ISHVAC 2011 - Shanghai, China
Duration: 2011 Nov 62011 Nov 9

Publication series

Name7th International Symposium on Heating, Ventilating and Air Conditioning - Proceedings of ISHVAC 2011
Volume3

Other

Other7th International Symposium on Heating, Ventilating and Air Conditioning, ISHVAC 2011
CountryChina
CityShanghai
Period11/11/611/11/9

Keywords

  • CFD
  • House dust
  • Measurement
  • Riboflavin
  • Slit exhaust

ASJC Scopus subject areas

  • Environmental Science (miscellaneous)

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