Integrated evaluation of visual performance and energy efficiency by DIALux evo 8 for artificial lighting projects

• Autor(a) principal: Moraes, Júlia Silva de
• Data de Publicação: 2020
• Outros Autores: Muros Alcojor, Adrián, Bittencourt, Leonardo Salazar
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: PARC (Campinas)
• Texto Completo: https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8653991
• topic: Simulação; DIALux evo 8; Indicadores da iluminação artificial; Edifícios residenciais; Simulation; DIALux evo 8; Artificial lighting indicators; Residential buildings; Simulação; DIALux evo 8; Indicadores da Iluminação Artificial; Edifícios residenciais

The environmental behavior of buildings has been discussed in order to integrate quantitative and qualitative aspects of energy performance into the process of preparing artificial lighting projects. The purpose of this study is to examine the capacity of the DIALux evo 8 software to evaluate, in an integrated way, the visual performance and energy efficiency of virtual models during the elaboration of residential artificial lighting projects. The outline of the study consisted of: (i) definition of visual performance and efficiency indicators for artificial lighting; (ii) verification of the potential for the elaboration of these indicators by the software; (iii) application of simulation in residential environment. The visual comfort indicators evaluated were: maintained illuminance, uniformity, unified glare rating, color rendering index and color temperature. The indicators concerning energy efficiency evaluated were: luminous efficacy and lighting power densities. The simulation aimed to promote the discussion of capacity through the metrics determined by the software and aspects related to the user interface during the analysis of visual and energy performance. It was been found that all of the proposed indicators are calculated by DIALux evo 8, however the integrated analysis provided by the software's graphical interface prioritizes the analysis of illuminances. The Unified Glare Rating and lighting power densities are presented only in the documentation, requiring comparative analyzes performed outside the program. There were limitations regarding the standards used by the software, exclusive to EN 12464-1, consequently not including residential types. The contribution of this work consists of discussing the resources offered by the software and its repercussions in the management of lighting projects.