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Etude de l'écoulement d'air et de la distribution des aérosols contaminants dans une salle d'opération aux murs chauffés.

Investigation of airflow and contaminant aerosol distribution in an operating theater with heated walls.

Auteurs : SUN J., XI H., HUANG S.

Résumé

The objective of the study is to investigate the effectiveness of the heated sidewalls of an airflow and contaminant aerosol distribution. A class C clean-room operation theater designed with heated sidewalls is investigated by the CFD approach. The RANS equations together with the RNG turbulence model are used for flow simulation, and the Boussinesq model is applied to consider the buoyancy effect. They are further incorporated with a discrete trajectory approach for predicting contaminant aerosol behaviour. Numerical simulations are carried out for several airflows at different Reynolds and Grashof numbers. Distribution of velocity, turbulent intensity, temperature, and contaminant aerosol are obtained. In comparison with the conventional unheated sidewall configuration, the heated sidewalls produce a better airflow and contaminant aerosol distribution. Results arising from the study may provide an alternative for innovative design of clean rooms.

Détails

  • Titre original : Investigation of airflow and contaminant aerosol distribution in an operating theater with heated walls.
  • Identifiant de la fiche : 2007-0818
  • Langues : Anglais
  • Source : ACRA-2006. Proceedings of the 3rd Asian conference on refrigeration and air conditioning.
  • Date d'édition : 21/05/2006

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