Etude numérique sur l'influence de la hauteur de plafond pour la ventilation par déplacement d'air.
Numerical study on the influence of a ceiling height for displacement ventilation.
Auteurs : HASHIMOTO Y., YONEDA H.
Résumé
This study analyses vertical temperature profiles for displacement ventilation depending on a ceiling height of an small office room. It's purpose is to investigate the influence of the ceiling height on thermal comfort of the occupants. Numerical simulations are carried out for a modelled room which dimensions are 5.3 by 5.44 by 2.5, 3 and 3.5 m ceiling height. A finite volume method is used for solving the governing equations and low Reynolds number k-E model is applied as a turbulent model. A heat source is installed at the centre of the modelled room and lighting load is given on the ceiling. The surface temperature of the ceiling-mounted lighting fixtures is given as a boundary condition by measuring surface temperature of fluorescent lamps using a thermograph. Normalised vertical temperature profiles are compared for each ceiling height room. Numerical results are compared to experimental results for 2.5 m ceiling height room. As a result, thermal comfort is surveyed for different ceiling height rooms for displacement ventilation.
Détails
- Titre original : Numerical study on the influence of a ceiling height for displacement ventilation.
- Identifiant de la fiche : 2010-1598
- Langues : Anglais
- Date d'édition : 27/07/2009
- Source : Source : Build. Simul. 2009, Glasgow
pp. 1045-1052; fig.; photogr.; tabl.; 8 ref.
Indexation
-
Use of simulation in the design of a large, nat...
- Auteurs : HAVES P., LINDEN P. F., CARRILHO da GRACA G.
- Date : 2004
- Langues : Anglais
- Source : Build. Serv. Eng. Res. Technol. - vol. 25 - n. 3
Voir la fiche
-
Uticaj zahvata mlaza na karakteristike plafonsk...
- Auteurs : KOSONEN R.
- Date : 02/11/2005
- Langues : Serbe
- Source : Zbornik radova pisanih za 36. kongres o klimatizaciji, grejanju, hladenju + CD-ROM./ Proceedings of the 36th International HVAC&R congress + CD-ROM.
Voir la fiche
-
Conceptual analysis of intensive care room with...
- Auteurs : YU B., BROUWER A., LUSCUERE P. G.
- Date : 10/06/2007
- Langues : Anglais
- Source : Clima 2007. WellBeing Indoors. Proceedings of the 9th REHVA World Congress [CD-ROM + Abstract book].
Voir la fiche
-
Numerical investigation for the room with displ...
- Auteurs : NA Y. L., TU G. B., YU S. B.
- Date : 22/04/2003
- Langues : Anglais
- Source : Cryogenics and refrigeration. Proceedings of ICCR 2003.
Voir la fiche
-
Numerical study on thermal indoor environment o...
- Auteurs : ZHAO L., FENG Y., YUAN F., et al.
- Date : 20/05/2009
- Langues : Anglais
- Source : ACRA-2009. The proceedings of the 4th Asian conference on refrigeration and air conditioning: May 20-22, 2009, Taipei, R.O.C.
- Formats : PDF
Voir la fiche