Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) Web of Science
  • Dependence of Air Permeability of Translucent Structures on Temperature Impacts
  • UDC 692.82
    Yury S. KUNIN, e-mail:
    Rafik G. ALEKPEROV, e-mail:
    Tatiana V. POTAPOVA, e-mail:
    Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
    Abstract. Air permeability is one of the most important characteristics affecting the heat balance of premises and energy efficiency of buildings, and ranks first among the reasons for claims to translucent structures. Existing methods for determination of air permeability of window units are based on sequential creation of stationary pressure differences and measurement of mass and volume air flow rates penetrating through the sample, with subsequent calculation of air permeability at positive temperature. Translucent structure is considered as static system, characteristics of which do not change during operation period. The hypothesis of increasing the air permeability of these structures with a decrease in temperature, which was confirmed by laboratory tests, was formulated. This is due, first of all, to the temperature deformations of frames and sashes' profiles and deterioration of elasticity of sealing gaskets. Laboratory tests of a number of samples of window units were conducted and the dependence of the air permeability value on temperature impacts was determined on the basis of the results obtained. It is established that the dependence of air permeability on pressure is non-linear. Introduction of additional requirements and correction coefficients for translucent structures when calculating the infiltration of buildings and structures is proposed. The foundation for further research in the field of the impact of climatic loads on the properties of the material and the deformability of PVC window units is laid.
    Key words: translucent structures, air permeability, windows, terms and conditions of use, temperature conditions, pressure difference, air tightness, volumetric air flow rate, air infiltration.
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  • For citation: Kunin Yu. S., Alekperov R. G., Potapova T. V. Dependence of Air Permeability of Translucent Structures on Temperature Impacts. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 10, pp. 114-120. (In Russian).