Influence of green walls on the thermal performance of social housing
Although the benefits of vegetation are widely known, its use as a facade element remains a very incipient practice. This strategy has become popular due to the promise of improvement on the thermal performance of buildings, in addition to representing an alternative for expanding biodiversity in th...
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| Main Authors: | , , |
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| Formato: | Online |
| Idioma: | por |
| Publicado em: |
Universidade Estadual de Campinas
2020
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| Acesso em linha: | https://periodicos.sbu.unicamp.br/ojs/index.php/parc/article/view/8658167 |
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| Resumo: | Although the benefits of vegetation are widely known, its use as a facade element remains a very incipient practice. This strategy has become popular due to the promise of improvement on the thermal performance of buildings, in addition to representing an alternative for expanding biodiversity in the urban environment. This paper investigates the influence of green walls, within the Brazilian climate context, on the thermal performance of social housing buildings. The methodology consists of the simulation of the thermal and energy behavior of a multifamily housing building. The simulation is performed with the EnergyPlus® program, including the HAMT model, that takes into account the moisture transfer process through the envelope for three bioclimatic zones provided by the Brazilian standard NBR 15520-2005: extreme winter climate (ZB1), extreme summer climate (ZB8), and a climate considered as the intermediary (ZB3). The results obtained demonstrate a difference in the environments' indoor temperature caused by the two facade arrangements: with and without vegetation. The green wall's use provided a reduction in the indoor temperature of up to 2.8 °C in summer and an increase of up to 1.4 °C in winter. The facade's vegetation worked as a layer of thermal insulation, helping to keep the indoor temperature lower during the day and mild during the night. Therefore, green walls can represent a sustainable and low-cost solution to be implemented in buildings, aiming to improve their thermal performance. |
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