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Unified evaluation of total radiation in urban environments

机译：统一评估城市环境中的总辐射

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摘要

The increasing complexity of modern architectural geometries emphasizes the need for more accurate simplified calculations of comfort analysis in architectural design. In most applications, the designer roughly estimates several parameters involved in thermal comfort that are very difficult to compute, among which the components of Mean Radiant Temperature (MRT) are notable. The goal of this paper is to propose a fast reliable technique, named Numerous Vectors (NV), to calculate MRT even in the presence of complex geometries. Considering the area, orientation, and distance of different radiant geometries, the process suggests an innovative method to find geometric-related parameters such as view factors by projecting the surrounding surfaces on a unit sphere representing the human body. The NV method is much faster than conventional methods. Moreover, all the geometry-related components of MRT including the radiation of individual surfaces, solar radiation, and the atmospheric radiation are calculated in one single step. The results are proved to be in a good agreement with analytical data.
机译：现代建筑几何形状的复杂性日益增加，这就要求在建筑设计中对舒适度分析进行更精确的简化计算。在大多数应用中，设计人员粗略估算了涉及热舒适性的几个参数，这些参数很难计算，其中平均辐射温度（MRT）的组成部分值得注意。本文的目的是提出一种快速可靠的技术，称为“多个向量（NV）”，即使存在复杂的几何图形也可以计算MRT。考虑到不同辐​​射几何的面积，方向和距离，该过程提出了一种创新方法，该方法可通过将周围表面投影到代表人体的单位球体上来找到与几何相关的参数，例如视图因子。 NV方法比常规方法快得多。而且，MRT的所有与几何相关的组件，包括单个表面的辐射，太阳辐射和大气辐射，都可以一步计算。结果证明与分析数据非常吻合。

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