Energy performance of mixed-mode office buildings: Assessing typical construction design practices

Autor(es)

Neves, L. O. ^[1] ; Melo, A. P. ^[2] ; Rodrigues, L. L. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Civil Engn Architecture & Urban Design, Campinas, SP - Brazil

^[2] Univ Fed Santa Catarina, Lab Energy Efficiency Bldg, Florianopolis, SC - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF CLEANER PRODUCTION; v. 234, p. 451-466, OCT 10 2019.
• Citações Web of Science: 1

Resumo

Studies have demonstrated the energy savings potential of mixed-mode ventilated office buildings. Yet, it is important to widen the knowledge about how those buildings have been designed and built in practice, and which design parameters have greater influence on its energy performance. The aim of this paper was to evaluate how building envelope design parameters influence the energy performance of cellular mixed-mode office buildings, in order to identify key design variables. The analysis presents a comparison among literature research studies and typical construction practices from a sample of buildings located in the city of Sao Paulo, Brazil. According to a base case model, established based on the real buildings sample, three sensitivity analysis techniques were performed to obtain relative parameter sensitivity to thermal loads: OFAT, Morris and Monte Carlo. Results showed the importance of the window opening effective area and the reduced impact of the window-to-wall ratio on the energy performance of mixed-mode office buildings. By applying a multivariate regression model, it showed significant in predicting 78.1% of the variance in annual thermal loads. The accurate determination of annual thermal loads into mixed-mode office buildings can be used to optimize the envelope characteristics based on a combination of input data and the building geometry. Findings from this study could also be applied to other locations, provided that similar climatic environment and urban context are taken into account. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 16/02734-0 - Desenvolvimento de metamodelos para análise de desempenho energético de edifícios de escritórios com sistema híbrido de condicionamento
• Beneficiário: Leticia de Oliveira Neves
• Modalidade de apoio: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Regular