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首页> 外文期刊>Building and Environment >Impact of double skin facade constructional features on heat transfer and fluid dynamic behaviour
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Impact of double skin facade constructional features on heat transfer and fluid dynamic behaviour

机译：双皮肤立面结构特征对传热和流体动力行为的影响

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Double skin facades (DSF) are an interesting and important architectural element in buildings as they are visually very attractive and can, at the same time, lead to better performance than single skin facades. DSFs need to be properly designed and operated, or their potential benefits might vanish. For this reason, the physical processes occurring in a DSF should be well understood and predicted. However, they are highly dynamic and in constant interaction with each other, and they depend on the geometric, thermo-physical, optical and aerodynamic characteristics of the different DSF elements. This literature review reports experimental and numerical studies of DSFs that investigate and assess the cause-effect link between constructional features and the thermophysical phenomena occurring in the systems. These studies are analyzed to better understand the current knowledge available to design both naturally and mechanically ventilated DSFs. The review shows that it is possible to understand simple links between families of constructional properties and performance, but only when one parameter at a time is analyzed. General trends can be defined, such as that the optical properties and especially shading (when present) properties are driving factors for both mechanically ventilated and naturally ventilated DSF, while other features seem to be less relevant (at least alone) to determine the behaviour of these systems. However, the complex interaction between more than one constructional feature is seldom investigated, if not completely explored, and this leaves a relatively large knowledge gap to support the optimal design and operation of DSF systems.
机译：双重皮肤外墙（DSF）是建筑物中的一个有趣而重要的建筑元素，因为它们视觉上非常有吸引力，同时可以导致比单皮肤外墙更好的性能。 DSF需要正确设计和操作，或者他们的潜在福利可能会消失。因此，应该很好地理解和预测在DSF中发生的物理过程。然而，它们是高度动态的，并且彼此恒定的相互作用，它们取决于不同DSF元素的几何，热物理，光学和空气动力学特性。该文献综述报告了对DSF的实验性和数值研究调查和评估了系统中发生的结构特征和热神经现象之间的原因效果联系。分析这些研究以更好地了解可用于设计自然和机械通风的DSF的目前的知识。审查表明，可以了解构造属性和性能的族之间的简单链接，但仅在分析一个参数时才会分析。可以定义一般趋势，例如光学性质，尤其是阴影（当存在时）属性是机械通风和天然通风的DSF的驱动因子，而其他特征似乎较低（至少单独）以确定行为这些系统。然而，如果没有完全探索，很少调查多于一个结构特征之间的复杂互动，并且这留下了相对较大的知识差距来支持DSF系统的最佳设计和操作。

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