干旱区生态环境知识资源中心(Arid): Assessment of green roof benefits on buildings' energy-saving by cooling outdoor spaces in different urban densities in arid cities

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DOI	10.1016/j.energy.2020.119514
	Assessment of green roof benefits on buildings' energy-saving by cooling outdoor spaces in different urban densities in arid cities
	Aboelata, Amir
通讯作者	Aboelata, A (corresponding author), Tech Univ Berlin, Inst Landscape Architecture & Environm Planning, Str 17 Juni 145, D-10623 Berlin, Germany.
来源期刊	ENERGY
ISSN	0360-5442
EISSN	1873-6785
出版年	2021
卷号	219
英文摘要	Over the last twenty years, Cairo experienced a great rise in temperature by 4-5 K due to the high urban density and lack of vegetation. These factors led to increased air conditioning and electricity usage. This study therefore seeks to evaluate the effect of green roofs on reducing outdoor air temperature and lowering buildings' cooling energy demand in different urban densities. Group A consisted of the same aspect ratio areas H/W = 1 and different building heights of 12 m, 18 m, and 30 m. Group B contained areas of the same building heights (12 m) and different aspect ratios of H/W = 1, 2, and 3. ENVI-met v.4.4.4 was used to study each area by simulating the reference case and two scenarios: extensive and intensive green roofs. Then, a Design Builder model was used to calculate the buildings' energy demand. This study found that intensive green roofs achieve the maximum reduction in air temperature and buildings' cooling energy. However, the economic aspect favors using extensive green roofs as they were able to reduce air temperature and buildings' cooling energy in Group A by 0.1-0.5 K and 1.3-3.2% and in Group B by 0.1-1.7 K and 3.2-13.3%. (C) 2020 Elsevier Ltd. All rights reserved.
英文关键词	Building simulation ENVI-met Extensive green roofs Intensive green roof Urban density PET
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000611859300009
WOS关键词	HEAT-ISLAND ; THERMAL COMFORT ; RESIDENTIAL BUILDINGS ; MITIGATION MEASURES ; IMPACT ; PERFORMANCE ; MICROCLIMATE ; CLIMATE ; QUALITY ; SYSTEM
WOS类目	Thermodynamics ; Energy & Fuels
WOS研究方向	Thermodynamics ; Energy & Fuels
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368945
作者单位	[Aboelata, Amir] Tech Univ Berlin, Inst Landscape Architecture & Environm Planning, Str 17 Juni 145, D-10623 Berlin, Germany; [Aboelata, Amir] Cairo Univ, Fac Reg & Urban Planning, Urban Design Dept, Cairo, Egypt
推荐引用方式 GB/T 7714	Aboelata, Amir. Assessment of green roof benefits on buildings' energy-saving by cooling outdoor spaces in different urban densities in arid cities[J],2021,219.
APA	Aboelata, Amir.(2021).Assessment of green roof benefits on buildings' energy-saving by cooling outdoor spaces in different urban densities in arid cities.ENERGY,219.
MLA	Aboelata, Amir."Assessment of green roof benefits on buildings' energy-saving by cooling outdoor spaces in different urban densities in arid cities".ENERGY 219(2021).

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