CODYRUN: Artificial lighting simulation for visual confort and energy saving optimization - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2011

CODYRUN: Artificial lighting simulation for visual confort and energy saving optimization

Résumé

This paper reports a method about artificial lighting simulation. More precisely, we present a case study with software simulation. The software used is 'CODYRUN', a powerful tool developed by the PIMENT laboratory. This software has been developed by the building physics team of the PIMENT laboratory since 1993. It has been completed with a specific model dealing with artificial and natural lightning in 2009. The goal of this study is to analyse, with CODYRUN, the indoor artificial lighting repartition and optimization. In this way, we will be able to appreciate the quantity/quality of this repartition, and find a better solution if needed. Beyond this particular case, the method can be used in every other study configurations to find the artificial lighting repartition. Considering that, a succinct presentation of the newest CODYRUN lighting functionalities and applications is made. Moreover, we explain briefly how these are implemented. The case study is a classroom located in a tropical island called 'La Réunion' (Indian ocean). The initial set-up is a classroom-typical light disposal. After simulation, mean artificial lighting values of 433 lux with an inadequate distribution is found. More precisely, it evolves between two hot spots of 794 lux in the centre of the room and 66 lux in the corners. This means, considering visual comfort, only 45% of the work plan is adequately lit. After correction, the distribution is much better. The new mean artificial lighting level has risen to 500 lux but with a better homogeneity. In this new configuration, there is no real hot spot, and the lighting level evolves between 550 lux and 250 lux, respectively at the centre of the room and in the corners. Considering visual comfort, 91% of the working plan surface is now adequately lit. So we improved the lighting quality by 46%. Thus, this tool induces a good prediction of light distribution and allows optimising it, which means making a better choice considering economy and comfort of occupants (with good lighting, there will be no need for additional devices)
Fichier principal
Vignette du fichier
Article-CISBAT_2011_JEAN.pdf (458.88 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01068583 , version 1 (26-09-2014)

Identifiants

  • HAL Id : hal-01068583 , version 1

Citer

Aurélien Jean, Ali Hamada Fakra, Harry Boyer, Frédéric Miranville. CODYRUN: Artificial lighting simulation for visual confort and energy saving optimization. CISBAT 2011 : CLEANTECH FOR SUSTAINABLE BUILDINGS From Nano to Urban Scal, Sep 2011, Lausanne, Switzerland. pp.467-470. ⟨hal-01068583⟩
314 Consultations
338 Téléchargements

Partager

Gmail Facebook X LinkedIn More