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Document IIF

Etude expérimentale de la stratification de l'air d'une pièce munie d'un système de distribution d'air sous le plancher.

Experimental investigation of room air stratification in an underfloor air distribution system.

Auteurs : KONG Q. X., YU B. F., YANG Q.

Résumé

Physical tests were utilized to investigate air stratification in an UFAD room. The test chamber, 3.9 (L) × 2.9 (W) × 2.6 m (H), was served by an air-conditioning and mechanical ventilation system which was capable of controlling the air temperature and airflow rate at the supply diffuser. The different supply air conditions and space heat loads approximated those found in building applications were tested. The results show that the parameter affecting room air stratification would be expressed by the length scale of the floor supply jet. When the length scale was smaller than the room height and increased from 0.83 to 1.15 m, the ratio of vertical temperature difference at the free area to the difference between return and supply air temperature decreased from 0.59 to 0.47.

Documents disponibles

Format PDF

Pages : ICR07-E1-242

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Experimental investigation of room air stratification in an underfloor air distribution system.
  • Identifiant de la fiche : 2008-0311
  • Langues : Anglais
  • Source : ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Date d'édition : 21/08/2007

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