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Impact of key bioclimatic design strategies on buildings' performance in dominant climates worldwide

机译：Impact of key bioclimatic design strategies on buildings' performance in dominant climates worldwide

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摘要

Bioclimatic design strategies are among the most promising sustainable approaches for improving energy efficiency of buildings. However, their contributions to reducing the energy consumption and carbon footprint of buildings are largely dependent on the alignment of building design with climatic conditions. The objective of this paper is to investigate the effect of key bioclimatic design strategies, namely green roof and walls, tree shading, natural ventilation, glazing system, blinds, building orientation and Trombe wall on the energy performance of a typical residential building in the three most dominant climates worldwide. These strategies are analyzed in Riyadh, Tetouan and Montreal cities, selected to represent those climates, viz. arid, temperate and cold climates, respectively. To this end. numerous dynamic thermal simulations were performed using EnergyPlus software. The findings of this research revealed that, individually, green roof and walls, and Trombe wall strategies have the highest performance in terms of energy savings and greenhouse gas (GHG) emissions mitigation for all selected locations. Moreover, blinds and tree shading strategies are too recommended for arid and temperate climates, while natural ventilation is advisable only for the last one. Additionally, significant energy saving could be achieved by optimizing the building orientation, especially in arid and cold climates. However, the greatest energy savings and GHG emissions mitigation were achieved (ⅰ) by combining green roof and walls, Trombe wall, blinds and tree shading techniques for arid climates, (ⅱ) by adding natural ventilation to the last combination for temperate climates, and (ⅲ) when green roof and walls design is combined with an optimal building orientation for cold climates, with a share of 33, 58 and 19, respectively. This work is intended to be a reference to help building designers and engineers to select the appropriate bioclimatic design strategies according to the building's climate.

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