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首页> 外文期刊>Architectural science review >Regression modelling of radiant fluxes on different view factors under shading in a densely built environment
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Regression modelling of radiant fluxes on different view factors under shading in a densely built environment

机译：密集构建环境中遮蔽下不同视角因素下辐射通量的回归建模

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摘要

The exchange of radiant fluxes between different surfaces in an outdoor environment can be described with an enclosure theory. It provides a physical understanding of the relationship between different surfaces and consequent radiant fluxes within an enclosure, which is constructed by including surfaces of building facades and an imaginary surface of sky dome. Radiant fluxes on a surface can be expressed as linear combinations of view factors. This study examines the linear dependencies of urban radiant fluxes on view factors, namely Sunlit View Factor (SLVF), Green View Factor (GNVF), and Sky View Factor (SVF), using an empirical regression analysis. Results revealed a simple and linear correlation between view factors and outdoor radiant fluxes. As such, a quick estimation of the potential increase in the outdoor mean radiant temperature in relation to neighboring built environments can be achieved, and industry guidelines for designing thermally comfortable open spaces can be formulated accordingly. Urban morphology; radiant fluxes; Sky View Factor (SVF); Sunlit View Factor (SLVF); Green View Factor (GNVF)
机译：室外环境中不同表面之间的辐射通量交换可以用封闭理论来描述。它提供了对不同表面之间的关系以及封闭空间内的辐射通量之间关系的物理理解，封闭空间是通过包括建筑立面的表面和虚拟穹顶的表面而构建的。表面上的辐射通量可以表示为视图因子的线性组合。这项研究使用经验回归分析研究了城市辐射通量对视图因子（即阳光视图因子（SLVF），绿色视图因子（GNVF）和天空视图因子（SVF））的线性依赖性。结果表明，视线因子与室外辐射通量之间存在简单的线性关系。这样，可以快速估计室外平均辐射温度相对于邻近建筑环境的潜在增加，并且可以相应地制定用于设计热舒适开放空间的行业准则。城市形态辐射通量；天空景观因子（SVF）；阳光照射因子（SLVF）；绿观因子（GNVF）

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  • 来源
    《Architectural science review》 |2018年第2期|15-28|共14页
  • 作者

    Alan Lai; Yu Ting Kwok; Minjung Maing; Edward Ng;

  • 作者单位

    School of Architecture, The Chinese University of Hong Kong, Hong Kong, People's Republic of China;

    School of Architecture, The Chinese University of Hong Kong, Hong Kong, People's Republic of China;

    Faculty of Architecture, The University of Hong Kong, Hong Kong, People's Republic of China;

    School of Architecture, The Chinese University of Hong Kong, Hong Kong, People's Republic of China, Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Hong Kong, People's Republic of China, Institute of Future Cities, The Chinese University of Hong Kong, Hong Kong, People's Republic of China;

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