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

doi:10.1109/iCBEB.2012.286

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

The Hong Kong Polytechnic University

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

1 Citation (Scopus)

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 language	English
Title of host publication	Proceedings - 2012 International Conference on Biomedical Engineering and Biotechnology, iCBEB 2012
Pages	1572-1575
Number of pages	4
DOIs	https://doi.org/10.1109/iCBEB.2012.286
Publication status	Published - 1 Oct 2012
Event	2012 International Conference on Biomedical Engineering and Biotechnology, iCBEB 2012 - Macau, China Duration: 28 May 2012 → 30 May 2012

Conference

Conference	2012 International Conference on Biomedical Engineering and Biotechnology, iCBEB 2012
Country/Territory	China
City	Macau
Period	28/05/12 → 30/05/12

Keywords

natural ventilation
pollutant
residual time
wind paths

ASJC Scopus subject areas

Biotechnology
Biomedical Engineering

More information

10.1109/iCBEB.2012.286

Cite this

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Mak, CM, Zhang, W & Wong, HM 2012, Numerical study of pollutant dilution in a natural ventilated dental clinic: Ventilation path types used for exhausting pollutant. in Proceedings - 2012 International Conference on Biomedical Engineering and Biotechnology, iCBEB 2012., 6245436, pp. 1572-1575, 2012 International Conference on Biomedical Engineering and Biotechnology, iCBEB 2012, Macau, China, 28/05/12. https://doi.org/10.1109/iCBEB.2012.286

Numerical study of pollutant dilution in a natural ventilated dental clinic: Ventilation path types used for exhausting pollutant. / Mak, Cheuk Ming; Zhang, W.; Wong, H. M.
Proceedings - 2012 International Conference on Biomedical Engineering and Biotechnology, iCBEB 2012. 2012. p. 1572-1575 6245436.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Numerical study of pollutant dilution in a natural ventilated dental clinic: Ventilation path types used for exhausting pollutant

AU - Mak, Cheuk Ming

AU - Zhang, W.

AU - Wong, H. M.

PY - 2012/10/1

Y1 - 2012/10/1

N2 - 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.

AB - 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.

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KW - pollutant

KW - residual time

KW - wind paths

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

Abstract

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Keywords

ASJC Scopus subject areas

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