Abstract
One of the problems of ventilated facades systems is the emission of heat-insulating layer. Emission is a process of separation or removal of material’s particles from insulation by virtue of different factors. In this article research of emission of contemporary light weight insulation in system of hinged ventilated facade (VF) with various design is carried out. Impact of design and hydraulic factors on insulation destruction is estimated. Quantitative characteristic of blast air through rustication joints in a vertical channel is given and, consequently, it is possible to determine control point of recirculation zone formation – the beginning of turbulent air flow. Particle’s removal in insulation and decline of its properties are most probable in case of tangential stress, that conform to turbulent air flow.
Highlights
In modern construction using of hinged ventilated facades as an enclosure structure has increased
Characteristics of an air flow in interlayer of ventilated façade (VF) were analyzed by Diego Angeli, Alessanro Dama [1]
Velocity fluctuation and increasing of tangential stresses in 10 times are specific to turbulent flow
Summary
In modern construction using of hinged ventilated facades as an enclosure structure has increased. This type of systems is characterized by high heat-shielding properties in comparison with other popular types of walling. [7,10] this type of insulation is more expensive Another way to reduce emission of insulation layer is using of wind-shelter membranes. The question of the possibility of applying lightweight insulation without a wind-shelter membrane in VF systems becomes relevant. The aim of this study is determination of impact of rustication joints on lightweight insulation in VF systems. 3. determination of amount of the blast air through rustication joints in a vertical channel and control point of recirculation zone formation
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