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Environmental Science and Pollution Research

, Volume 22, Issue 7, pp 4873–4880 | Cite as

An experimental approach to measure particle deposition in large circular ventilation ducts

  • Guillaume DaEmail author
  • Evelyne Géhin
  • Mourad Ben-Othmane
  • Michel Havet
  • Camille Solliec
  • Charles Motzkus
Atmospheric Pollutants in a Changing Environment

Abstract

The topic of this study is related to airborne particle dynamics in indoor environments. Lab-scale experiments have been performed to investigate particle deposition velocity to six different surfaces orientations (with respect to gravity) for fully developed turbulent flow in horizontal large circular ventilation ducts. Monodispersed aerosol particles (1–6 μm) were used in the deposition experiments. A very low particle mass (40 ng) was measured reliably above background level on duct surfaces by a means of a nondestructive stencil technique associated with fluorescence analysis. For 2–6 μm particles (diffusion and impaction regime), deposition rates to floors were much greater than rates to the ceiling and greater than rates to the wall. For 1-μm particles, the effect of surface orientation to particle deposition was not significant. Results were compared to the very few similar and published studies. This work was conducted in the frame of the CleanAirNet project which aimed at producing new knowledge, models, and techniques to help controlling the safety food stuffs, through a better control of aerosol particle (bioaerosols) transport and deposition in the ventilation networks of the food industry.

Keywords

Particle deposition Large ventilation ducts Turbulent flow Food industries Bioaerosols 

Notes

Acknowledgments

This work was conducted within the framework of the CleanAirNet project (supported by the French National Research Agency, ANR), a joint project of research groups from IRSTEA (METFRI-Rennes), GEPEA (Process Engineering laboratory), CSTB (Laboratory of Indoor Environment Microbiology), CERTES-Université Paris-Est (Center for Thermal and Environmental Research), ADRIA NORMANDIE (Center of technological resources devoted to food industry), and LAVAL MAYENNE TECHNOPOLE (territorial agency for economical development and innovation promotion).

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Guillaume Da
    • 1
    Email author
  • Evelyne Géhin
    • 1
  • Mourad Ben-Othmane
    • 2
  • Michel Havet
    • 3
  • Camille Solliec
    • 4
  • Charles Motzkus
    • 5
  1. 1.Centre d’Etudes et de Recherche en Thermique, Environnement et Systèmes (CERTES)Université Paris-EstCréteilFrance
  2. 2.CLAUGERBrignaisFrance
  3. 3.LUNAM Université, ONIRIS, CNRS, GEPEA, UMR 6144NantesFrance
  4. 4.LUNAM Université, Ecole des Mines de Nantes, CNRS, GEPEA, UMR 6144NantesFrance
  5. 5.Laboratoire National de Métrologie et d’Essais (LNE)Paris Cedex 15France

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