Passive Energy Performance of Vertical Greenery Systems (VGS) Under Different Climatic Conditions

Dahanayake, Kalani C.; Chow, Cheuk Lun

doi:10.1007/978-3-030-04293-6_28

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…Research conducted in Hong Kong [27] revealed that living walls experienced temperature reductions of up to 16 °C during the summer. Furthermore, a study by Dahanayake et al reported that the maximum outside surface temperature of a living wall was 15.4 °C lower than that of a conventional wall [63]. Additional investigations in Wuhan, China [64], and Singapore [61] exhibited exterior surface temperature reductions of 20.8 °C and 10 °C, respectively.…”

Section: Thermal Effect Of the Living Wallmentioning

confidence: 98%

Investigating the Effect of Living Walls on Cooling Energy Consumption in Various Urban Microclimates, Building Heights, and Greenery Coverage Areas

Bakhtyari,

Fattahi,

Movahed

et al. 2024

Sustainability

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With the aim of addressing the significant contribution of buildings to global energy consumption and the growing need to establish a more harmonious connection between humans and nature in urban environments, the concept of green vertical systems has garnered considerable attention. These systems possess the potential to enhance the energy efficiency and environmental sustainability of buildings. This study seeks to explore the impact of living walls on the energy performance of buildings, specifically investigating the influence of a living-walled urban block on the ambient air temperature and its subsequent effect on building energy consumption. By comparing the cooling energy consumption of two typical buildings situated in Shiraz, southern Iran, with varying levels of greenery in different microclimates, we further ascertain the effectiveness of living walls in reducing energy consumption. To conduct this analysis, we employed coupled simulations utilizing EnergyPlus and Envi-met, which incorporated both the outdoor microclimate and the cooling energy consumption of the buildings. The urban block under consideration consisted of 48 three-story buildings (Case A) and five-story buildings (Case B) within a site measuring 120 m × 150 m. Our findings substantiate that the implementation of a living wall system can lower the ambient air temperature by a significant extent, with an average decrease of 1.35 °C and a maximum decrease of 2.25 °C. Consequently, living walls can effectively mitigate the urban heat island phenomenon by decreasing the temperatures of the surrounding buildings. Additionally, our investigations revealed a maximum energy saving of 15%, with microclimate exerting a 4.3% influence on these savings.

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Section: Thermal Effect Of the Living Wallmentioning

confidence: 98%

Investigating the Effect of Living Walls on Cooling Energy Consumption in Various Urban Microclimates, Building Heights, and Greenery Coverage Areas

Bakhtyari,

Fattahi,

Movahed

et al. 2024

Sustainability

View full text Add to dashboard Cite

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A Review of Advanced Façade System Technologies to Support Net-Zero Carbon High-Rise Building Design in Subtropical China

Zhou

Herr

2023

Sustainability

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While net-zero carbon buildings have been the focus of many previous studies, existing research tends to focus on low-rise buildings in temperate climates with cold winters. However, much of current building activity across the world, particularly in China, is located in hot and humid subtropical climates and typically features high-rise buildings. This review article systematically surveys recent literature on advanced façade systems that have been widely used across Europe and North America to determine their suitability for implementation in the subtropical climatic environment of southern China. To support the further research and design of net-zero carbon buildings in this context, this paper reviews existing technologies enabling zero carbon buildings, particularly those related to high-performance building facades, with a focus on South China. To this end, we present a systematic literature review of relevant studies in English conducted in the past 10 years. Following a definition of the scope of zero carbon building and design factors related to such building types, the paper discusses the rationale and mechanisms of key advanced facade technologies and their suitability for high-rise buildings in the hot and humid subtropical climate of South China, including double-skin façades, building integrated photovoltaics, façade greening systems, advanced shading systems, phase-change materials, and smart windows. The results of the review illustrate a shortage of relevant studies as well as a shortage of design tools supporting the integration of key technologies in the early architectural design stages, where decisions will have a significant impact on a building’s subsequent performance.

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Passive Energy Performance of Vertical Greenery Systems (VGS) Under Different Climatic Conditions

Cited by 2 publications

References 9 publications

Investigating the Effect of Living Walls on Cooling Energy Consumption in Various Urban Microclimates, Building Heights, and Greenery Coverage Areas

Investigating the Effect of Living Walls on Cooling Energy Consumption in Various Urban Microclimates, Building Heights, and Greenery Coverage Areas

A Review of Advanced Façade System Technologies to Support Net-Zero Carbon High-Rise Building Design in Subtropical China

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