Singapore's commercial buildings are energy-intensive, primarily for cooling, a demand increasing with population growth. This research investigates skyrise greenery (green roofs, vertical gardens, sky parks) to mitigate energy consumption and enhance thermal comfort, addressing the critical need for sustainable building practices.
The study used a multifaceted methodology, building on research by Wong et al.. It involved a literature review and computer simulations of a commercial building in Singapore. These simulations assessed skyrise greenery's energy-saving potential, considering solar radiation, temperature, and material properties based on ASHRAE standards. A comparative analysis evaluated energy performance with and without greenery.
Results demonstrate skyrise greenery significantly reduces cooling and fan energy consumption. Buildings with 100% single-glazed facades showed the most substantial energy reduction with green facades, indicating effectiveness against solar heat gain. A double-skin green facade on translucent single glazing led to a 32.43% decrease in cooling load and a 37.50% decrease in fan usage. Overall, green facade installation cut annual fan load by 15.17%. Vertical greenery systems also lowered the glass facade buildings' mean radiant temperature.
In conclusion, this study confirms skyrise greenery's substantial impact on energy consumption and thermal comfort in Singapore's commercial buildings. Integrating greenery reduces cooling loads, fan energy, and improves overall energy efficiency, fostering a sustainable urban environment. These findings offer valuable resources for architects, engineers, and policymakers in tropical regions, guiding more sustainable urban development.