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Transfert de masse dans les composés organiques volatils depuis un matériau de peinture placé dans une cellule utilisée en laboratoire et sur le terrain afin de mesurer les émissions.

Mass transfer of volatile organic compounds from painting material in a standard field and laboratory emission cell.

Auteurs : ZHANG L. Z., NIU J. L.

Type d'article : Article

Résumé

The field and laboratory emission cell (FLEC) is becoming a standard method of characterizing pollutant emissions from building materials. It is significant to use the emission profiles from FLEC to scale the emissions of building materials in real buildings. The dynamics of mass transfer in such an FLEC are the key to perform this task. In this study, the mass transfer mechanisms of the total volatile organic compounds from a wet painting in an FLEC are experimentally and numerically investigated. A three-dimensional mass transfer model, which takes into account the convective mass transfer between the material and the air, the diffusion in the paint film and in the substrate, is developed. The emissions from a water-based emulsion paint are quantified to assess the model. The concentration fields in the film and substrate are calculated to demonstrate the processes of internal volatile organic compounds diffusion.

Détails

  • Titre original : Mass transfer of volatile organic compounds from painting material in a standard field and laboratory emission cell.
  • Identifiant de la fiche : 2004-1377
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 46 - n. 13
  • Date d'édition : 06/2003

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