Methodology to assess the impact of urban vegetation on the energy consumption of residential buildings. Case study in a Mediterranean city

IF 7.1 Q1 ENERGY & FUELS Energy Conversion and Management-X Pub Date : 2024-09-07 DOI:10.1016/j.ecmx.2024.100706
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Abstract

The global growth of urban areas is unstoppable, and this growth is accompanied by an intensification of urban heat island effects, exacerbating the challenges of climate change and sustainable urban development in warm climates. In this context, understanding the intricate dynamics of these phenomena and their implications on the thermal behaviour of buildings becomes paramount. This study focuses on València, a Spanish city characterized by a Mediterranean climate, where the interplay between ground temperature variations, vegetation levels, and the thermal demands of buildings is investigated.

Land surface temperature measurements derived from satellite data, specifically from the Landsat-8 mission, provide a valuable lens through which to assess the heat island effect. These measurements are harmonized with data collected from local weather stations to establish a robust foundation for evaluating the thermal dynamics of the urban environment. European standards, coupled with Geographic Information System technologies, enable the simulation of temperature variations, and facilitate a nuanced analysis of their impact on the thermal demands of a building.

Moreover, recognizing the crucial role played by the urban climate in the influencing of heating and cooling needs, this study explores nature-based solutions implemented in València. By leveraging satellite-derived temperature and vegetation data over an extended period, it is possible to identify actions and elements that contribute positively to mitigating UHI effects and improving the overall climatic conditions. Results indicate that vegetation has a notable impact on local temperature, with distinct patterns observed in different seasons. The research incorporated the simulation of climate scenarios, introducing varying levels of vegetation. Results demonstrated a substantial reduction in cooling demand, particularly during the summer months. Buildings with a lower exterior surface-to-volume ratio exhibited a more pronounced reduction in energy consumption.

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评估城市植被对住宅建筑能耗影响的方法。地中海城市案例研究
全球城市地区的增长势不可挡,与此同时,城市热岛效应也在加剧,从而加剧了气候变化和温暖气候条件下城市可持续发展所面临的挑战。在这种情况下,了解这些现象的复杂动态及其对建筑物热行为的影响变得至关重要。本研究以西班牙的地中海气候城市瓦伦西亚为重点,研究了地表温度变化、植被水平和建筑物热需求之间的相互作用。这些测量数据与当地气象站收集的数据相协调,为评估城市环境的热动态奠定了坚实的基础。此外,由于认识到城市气候在影响供热和制冷需求方面的关键作用,本研究探讨了在瓦伦西亚实施的基于自然的解决方案。通过利用卫星获取的长期气温和植被数据,可以确定哪些措施和要素对缓解 UHI 影响和改善整体气候条件有积极作用。结果表明,植被对当地温度有显著影响,在不同季节观察到不同的模式。研究结合了气候情景模拟,引入了不同程度的植被。结果表明,制冷需求大幅减少,尤其是在夏季。外表面积比率较低的建筑物的能耗降低更为明显。
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来源期刊
CiteScore
8.80
自引率
3.20%
发文量
180
审稿时长
58 days
期刊介绍: Energy Conversion and Management: X is the open access extension of the reputable journal Energy Conversion and Management, serving as a platform for interdisciplinary research on a wide array of critical energy subjects. The journal is dedicated to publishing original contributions and in-depth technical review articles that present groundbreaking research on topics spanning energy generation, utilization, conversion, storage, transmission, conservation, management, and sustainability. The scope of Energy Conversion and Management: X encompasses various forms of energy, including mechanical, thermal, nuclear, chemical, electromagnetic, magnetic, and electric energy. It addresses all known energy resources, highlighting both conventional sources like fossil fuels and nuclear power, as well as renewable resources such as solar, biomass, hydro, wind, geothermal, and ocean energy.
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