The rapid urban development has caused serious problems such as high energy consumption and carbon emissions,especially under the context of climate change.Buildings are particularly energy-intensive,generating about ...The rapid urban development has caused serious problems such as high energy consumption and carbon emissions,especially under the context of climate change.Buildings are particularly energy-intensive,generating about one third of global energyrelated carbon emissions.Compared with active solutions(like mechanical systems),passive solutions offer the potential to balance energy consumption,thermal comfort,and ecological benefits.One potential solution is the integration of green glass space(GGS)into passive building design.GGS is a transitional building space with glass curtain walls that exhibit excellent insulation performance during winter.However,GGS is susceptible to overheating during summer,which limits its applicability.Therefore,this work proposes a strategy of integrating vertical greenery into GGS,leveraging the nature-based solution of greenery(i.e.,flourishes in summer and withers in winter)to address this seasonal challenge of GGS.The results demonstrated that the strategic application of vertical greenery can effectively mitigate the overheating in GGS and improve comprehensive benefits.By using full coverage of vertical greenery in a linear layout,the air temperature of GGS and cooling energy consumption were largely reduced by 8.02℃and 12.2%,respectively,while the carbon abatement was enhanced by up to 101.11 tons.Based on a comprehensive evaluation of energy,economy,and environmental benefits,it is recommended to use a greenery configuration with 50%coverage in a vertical linear layout for GGS.The integration of greenery into building design can mitigate adverse environmental impacts,reduce energy consumption,and contribute to the sustainable development of low-carbon cities.展开更多
Urban vegetation is a nature-based solution for cooling cities.Under global warming and urban population growth,it is essential to optimize urban vegetation configuration in the urban area to bring maximum cooling ben...Urban vegetation is a nature-based solution for cooling cities.Under global warming and urban population growth,it is essential to optimize urban vegetation configuration in the urban area to bring maximum cooling benefit.This paper reviews 85 optimized urban vegetation configuration studies published from 2010 to 2020 to provide an insight into the most effective vegetation configuration for urban heat mitigation.Patterns and preferences in methods and the optimized greenery configurations are comprehensively analyzed.The results indicate that size,quantity,and layout of urban green space and the physiological characteristics and spatial arrangement of urban vegetation significantly influence their cooling effect.Additionally,two other research gaps were identified.First,more research needs to be done in southern hemisphere cities experiencing rapid urbanization and severe impacts of extreme weather.Second,a comprehensive method for quantifying interactions and cumulative effects of natural and artificial factors in the urban environment is required.Future study needs a holistic understanding of the interactive effects of vegetation spatial distribution on urban environment and climate for a more accurate analysis of optimal cooling greening layouts in large urban areas at multi-scales.展开更多
基金supported by the National Natural Science Funds for Distinguished Young Scholar(Grant No.52225005)。
文摘The rapid urban development has caused serious problems such as high energy consumption and carbon emissions,especially under the context of climate change.Buildings are particularly energy-intensive,generating about one third of global energyrelated carbon emissions.Compared with active solutions(like mechanical systems),passive solutions offer the potential to balance energy consumption,thermal comfort,and ecological benefits.One potential solution is the integration of green glass space(GGS)into passive building design.GGS is a transitional building space with glass curtain walls that exhibit excellent insulation performance during winter.However,GGS is susceptible to overheating during summer,which limits its applicability.Therefore,this work proposes a strategy of integrating vertical greenery into GGS,leveraging the nature-based solution of greenery(i.e.,flourishes in summer and withers in winter)to address this seasonal challenge of GGS.The results demonstrated that the strategic application of vertical greenery can effectively mitigate the overheating in GGS and improve comprehensive benefits.By using full coverage of vertical greenery in a linear layout,the air temperature of GGS and cooling energy consumption were largely reduced by 8.02℃and 12.2%,respectively,while the carbon abatement was enhanced by up to 101.11 tons.Based on a comprehensive evaluation of energy,economy,and environmental benefits,it is recommended to use a greenery configuration with 50%coverage in a vertical linear layout for GGS.The integration of greenery into building design can mitigate adverse environmental impacts,reduce energy consumption,and contribute to the sustainable development of low-carbon cities.
基金The research is based on a PhD program of James Cook University(JCU)and partly supported by James Cook University Postgraduate Research Scholarship(JCUPRS)and the College of Science and Engineering Competitive Research Training Grant(CRTG)of JCU.
文摘Urban vegetation is a nature-based solution for cooling cities.Under global warming and urban population growth,it is essential to optimize urban vegetation configuration in the urban area to bring maximum cooling benefit.This paper reviews 85 optimized urban vegetation configuration studies published from 2010 to 2020 to provide an insight into the most effective vegetation configuration for urban heat mitigation.Patterns and preferences in methods and the optimized greenery configurations are comprehensively analyzed.The results indicate that size,quantity,and layout of urban green space and the physiological characteristics and spatial arrangement of urban vegetation significantly influence their cooling effect.Additionally,two other research gaps were identified.First,more research needs to be done in southern hemisphere cities experiencing rapid urbanization and severe impacts of extreme weather.Second,a comprehensive method for quantifying interactions and cumulative effects of natural and artificial factors in the urban environment is required.Future study needs a holistic understanding of the interactive effects of vegetation spatial distribution on urban environment and climate for a more accurate analysis of optimal cooling greening layouts in large urban areas at multi-scales.
