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Neighborhood designs for low-density social housing energy efficiency: Case study of an arid city in Argentina

机译：低密度社会住房能源效率的邻里设计：阿根廷一个干旱城市的案例研究

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摘要

Neighborhood planning and design strategies that reduce outdoor air temperatures would improve the thermal and energy performance of cities in arid regions. This study presents the thermal behavior and energy consumption of different urban scenarios for low-density social housing neighborhoods in Mendoza, Argentina. The microclimates of three representative urban canyons located in three different social housing neighborhoods were monitored. These neighborhoods have different layouts but share other similar features, which allow the behavior of their microclimates to be compared. Thus, 48 simulations were conducted using ENVI-met software to test neighborhood-level scenarios with the following features: two street widths (16 and 20m), three layout grids (multi-azimuthal, Cul-de-Sac, and rectangular), and four street orientations (E-W, N-S, NE-SW, and NW-SE). The energy consumption of each urban scenario was then estimated and compared. The results show that, in a house constructed without following bioclimatic design strategies, at least 21% of the auxiliary energy required to achieve a comfortable indoor temperature (25 degrees C) during summer can be saved. Energy savings depend on a suitable layout and street orientation, urban trees, and the albedo of the building materials. This study highlights the importance of planning and design decisions, especially for social housing settlements in arid cities. (C) 2018 Elsevier B.V. All rights reserved.
机译：降低室外空气温度的邻里规划和设计策略将改善干旱地区城市的热能和能源表现。这项研究提出了阿根廷门多萨低密度社会住房社区不同城市情景的热行为和能耗。监测了位于三个不同社会住房社区中的三个代表性城市峡谷的小气候。这些邻域具有不同的布局，但共享其他相似的功能，从而可以比较其微气候的行为。因此，使用ENVI-met软件进行了48次仿真，以测试具有以下特征的邻里级场景：两个街道宽度（16和20m），三个布局网格（多方位角，Cul-de-Sac和矩形），以及四个街道方向（EW，NS，NE-SW和NW-SE）。然后估算并比较每种城市情景的能耗。结果表明，在没有按照生物气候设计策略建造的房屋中，可以节省至少21％的辅助能量，以在夏季达到舒适的室内温度（25摄氏度）。节能取决于合适的布局和街道朝向，城市树木以及建筑材料的反射率。这项研究强调了规划和设计决策的重要性，特别是对于干旱城市的社会住房定居点。 （C）2018 Elsevier B.V.保留所有权利。

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  • 来源
    《Energy and Buildings》 |2018年第6期|137-146|共10页
  • 作者

    Belen Sosa Maria; Norma Correa Erica; Alicia Canton Maria;

  • 作者单位

    Consejo Nacl Invest Cient & Tecn CONICET, Inst Ambiente Habitat & Energia INAHE, CCT Mendoza, Av Ruiz Leal S-N Parque Gral San Martin, RA-5500 Mendoza, Argentina;

    Consejo Nacl Invest Cient & Tecn CONICET, Inst Ambiente Habitat & Energia INAHE, CCT Mendoza, Av Ruiz Leal S-N Parque Gral San Martin, RA-5500 Mendoza, Argentina;

    Consejo Nacl Invest Cient & Tecn CONICET, Inst Ambiente Habitat & Energia INAHE, CCT Mendoza, Av Ruiz Leal S-N Parque Gral San Martin, RA-5500 Mendoza, Argentina;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Urban form; Neighborhood design; Residential energy consumption; Heat island effect; Arid cities;

    机译：城市形态;社区设计;住宅能耗;热岛效应;干旱城市;

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