Daylight performance of office buildings: a dynamic evaluation for the case of São Paulo

• Autor(a) principal: Marcondes Cavaleri, Mônica Pereira
• Data de Publicação: 2018
• Outros Autores: Cunha, Guilherme Reis Muri, Gonçalves, Joana Carla Soares
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: PARC (Campinas)
• Texto Completo: https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8650725
• topic: Iluminação natural. Edifício de escritórios. Clima subtropical. Avaliação dinâmica.; Daylight performance. Office building. Subtropical climate. Climate-based evaluation.

A review of visual comfort criteria and daylight analysis supported by newer assessment methods involving climatic-based evaluations have been investigated in the last decade.  In this context, the main objective of this research work is to analyze the daylighting performance of the deep-plan office building, representative of the recent building production in the city of São Paulo, using climate-based computer simulations performed to the definition of the daylight passive zone of the base-case. The digital model was developed in the software Rhinoceros-5 and the performance assessment with the use of the plug-in Diva-for-Rhino. The initial criterion was a UDI factor of 75% for two illuminance ranges: UDI300-3000 e UDI100-3000; from which the results were compared against the Daylight Autonomy target of 500 lux. In addition to that, simulations were carried out for the recording of illuminance levels in two typical days of the São Paulo climate: winter and summer, to quantify the illuminance levels in the space throughout the day and therefore, add another measurement of quality. The results pointed out the difficulty in achieving a UDI of 75% across the whole office floor; made evident the more significant influence of external shading in the periphery of the plan, and quantified the reduction effects of excessive illuminance levels in the same periphery. Potential passive zones were established for the specific conditions of the study, varying significantly between 3.5 and 12.0 meters. Moreover, the wider range between 100lux and 3.000lux is applicable when architectural diversity is required.