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Transient modelling of convective movements in a room.

Modélisation en régime transitoire des mouvements convectifs dans une cellule d'habitation.

Author(s) : MOHAMMEDI M., LAINAULT F., MILCENT F., et al.

Type of article: Article

Summary

The study investigated thermal phenomena modelling inside a room in order to determine temperature distribution there. Coupling of the zonal method and integral analysis in the wall vicinity was carried out. The zonal method involves breaking up the room into isothermal zones. Mass and energy balances were established, in transient flow, for each zone. The various convective transfer types were listed and studied: transfer between air and walls, transfer between air layers, transfer between air and cold air jet, transfer between air and the transmitter. Conductive transfer through the walls and radiative transfer inside the room are also taken into account. An experimental validation campaign was also achieved in a testing room, and two heat transmitter types were tested: distributed and localized. Validation results were satisfying and the importance of air diffusion was emphasized. The influence of the number of air nodes number was also studied.

Details

  • Original title: Modélisation en régime transitoire des mouvements convectifs dans une cellule d'habitation.
  • Record ID : 2004-2727
  • Languages: French
  • Source: International Journal of thermal Sciences - vol. 41 - n. 8
  • Publication date: 2002/08

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