Lighting systems calculations for heritage buildings

[摘要] The heritage buildings generate specific problems for electrical installations, with supplementary request from lighting systems. The continuous trends towards modernization are traditionally in conflict with the conservation of the architectural details. This major constraint must be considered for new circuits, but also for luminaire, when retrofit is the main approach. After the esthetical considerations, the engineering approach raises a problem in connection with the dimensioning methods. For heritage buildings, the lighting systems must cover infinity of situation, very different from classical designing methods, based on Utilization Factor or Direct Illumination Calculus for orthogonal situations. An original method of calculation is proposed, based on analytical geometry, useful for any orientation of the working plane. Even this method has important limitations, generated by the specifically architectural details, and a lighting simulation is necessary. Based on DIALuxEVO7, specific methods are presented. The importance of results interpretation is also underline.

[发布机构] Gheorghe Asachi Technical University of Iai, Faculty of Civil Engineering, Building Services, Iai; 700050, Romania^1

[学科分类] 土木及结构工程学

[关键词] Analytical geometry;Direct illumination;Electrical installations;Heritage buildings;Lighting simulation;Method of calculation;Specific problems;Utilization factor