Opaque Ventilated Facade (OVF) Thermal Performance Simulation for Office Buildings in Brazil
Opaque ventilated facades (OVFs) are increasingly gaining in importance in the design of sustainable buildings, given that they can lessen the building ' s environmental impact. Opaque ventilated facades can reduce thermal gains in hot climate zones, improving the thermal comfort indoors, and reduci...
| Authors: | ; ; ; |
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| Format: | Article |
| Publication date: | 2020 |
| Country: | España |
| Institution: | Consejo General de la Arquitectura Técnica de España (CGATE) |
| Repository: | RIARTE |
| OAI Identifier: | oai:www.riarte.es:20.500.12251/1964 |
| Online Access: | http://hdl.handle.net/20.500.12251/1964 https://doi.org/10.3390/su12187635 |
| Access Level: | Open access |
| Keyword: | Fachadas ventiladas Edificios sostenibles Confort térmico Ahorro energético Climatización Envolvente de edificio Fachadas Simulación energética - herramientas Zonas climáticas Brasil 3313.04 Material de Construcción 3305.90 Transmisión de Calor en la Edificación 2501.21 Simulación Numérica 2502.07 Climatología Regional 3312.08 Propiedades de Los Materiales 3312.12 Ensayo de Materiales |
| Summary: | Opaque ventilated facades (OVFs) are increasingly gaining in importance in the design of sustainable buildings, given that they can lessen the building ' s environmental impact. Opaque ventilated facades 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 facade depends on the climatic conditions and the building ' s specific design. This study analyses the effect of opaque ventilated facades 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 facade configuration for each of the specific climate conditions in Brazil. |
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