Opaque Ventilated Façade (OVF) Thermal Performance Simulation for Office Buildings in Brazil

Camila Gregório-Atem, Carolina Aparicio-Fernández, Helena Coch and José-Luis Vivancos
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Camila Gregório-Atem: Civil, Construction Engineering Department, State University of Londrina, Londrina 86057-970, Brazil
Carolina Aparicio-Fernández: Department of Architectural Constructions, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
Helena Coch: Architecture, Energy & Environment, School of Architecture of Barcelona, UPC, Av. Diagonal, 649, 7th Floor, 08028 Barcelona, Spain
José-Luis Vivancos: GIDDP, Departamento de Proyectos de Ingeniería, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain

Sustainability, 2020, vol. 12, issue 18, 1-15

Abstract: Opaque ventilated façades (OVFs) are increasingly gaining in importance in the design of sustainable buildings, given that they can lessen the building´s environmental impact. Opaque ventilated façades can reduce thermal gains in hot climate zones, improving the thermal comfort indoors, and reducing air conditioning demand. Nevertheless, the thermal behaviour of the opaque ventilated façade depends on the climatic conditions and the building´s specific design. This study analyses the effect of opaque ventilated façades in office buildings using 30 constructive configurations under eight tropical climate conditions. The study considers three options for the external layer of cladding (ceramic, stone, and aluminium composite material) and two configurations for the inner layer (plasterboard with mineral wool and ceramic). Simulations were carried out using the software tools TRanNsient SYstem Simulation program (TRNSYS) and TRNFlow. The model developed considers bioclimatic characteristics, including solar radiation and wind conditions for each climatic zone. The operating temperature was selected from within the range established by occupant comfort regulations. The findings suggest that it is possible to select the best office building opaque ventilated façade configuration for each of the specific climate conditions in Brazil.

Keywords: ventilated façade; building simulation; tropical climates; energy demand (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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