Numerical study of pollutant dilution in a natural ventilated dental clinic: Ventilation path types used for exhausting pollutant

Cheuk Ming Mak, W. Zhang, H. M. Wong

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

A dental clinic was modelled in this study using a Computational Fluid Dynamics (CFD) platform. The objective was to study the effect of natural ventilation on pollutant dispersion in this setting. Three basic ventilation paths were identified, the "single narrow path", "narrow path" and "dispersive path". The results show that the first of these had the highest efficiency, with an escape time of about 1/30 and 1/100 of the narrow and dispersive paths, respectively. Despite the position of the pollutant source and facilities such as bulkheads, escape time was significantly reduced when the ventilation flow rate was increased under the single narrow and dispersive paths. However, for the narrow path, these factors played a more dominant role in the escape time than the ventilation flow rate.
Original languageEnglish
Title of host publicationProceedings - 2012 International Conference on Biomedical Engineering and Biotechnology, iCBEB 2012
Pages1572-1575
Number of pages4
DOIs
Publication statusPublished - 1 Oct 2012
Event2012 International Conference on Biomedical Engineering and Biotechnology, iCBEB 2012 - Macau, China
Duration: 28 May 201230 May 2012

Conference

Conference2012 International Conference on Biomedical Engineering and Biotechnology, iCBEB 2012
Country/TerritoryChina
CityMacau
Period28/05/1230/05/12

Keywords

  • natural ventilation
  • pollutant
  • residual time
  • wind paths

ASJC Scopus subject areas

  • Biotechnology
  • Biomedical Engineering

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