Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) на платформе Web of Science

  • Influence of Air Permeability of External Enclosures on Energy-Saving Operation of Buildings
  • UDC 697:699.86.022.3
    Andrey I. YURCHENKO, å-mail:
    Tatyana V. SCHUKINA, å-mail:
    Voronezh State Technical University, ul. 20 let Oktyabya, 84, Voronezh 394006, Russian Federation
    Lubov' V. KUZNETSOVA, å-mail:
    Agrotorg, ul. Kosmonavtov, 84, Voronezh 394006, Russian Federation
    Abstract. The feasibility of regular inspection of external enclosures for detecting defects and their subsequent elimination when conducting repairing works aimed at the further implementation of energy saving operation of buildings is substantiated. The natural aging of building materials is often accompanied by an increase in air permeability which must be considered when determining thermal protection properties of external enclosures. The obtained solution of the thermal conductivity equation with due regard for the infiltration influence for multilayer building structures makes it possible to evaluate the consequences of its growth during the lengthy operation, without timely repairs. As calculations show, the penetration of cold air in external enclosures due to the formation of micro-cracks and voids with increasing the age of buildings affects negatively the thermal regime of the premises. As a result, the low temperature on the inner surface of building structures does not meet sanitary-hygienic requirements. The prognosis of reduction of thermal protective properties affords ground to recommend an additional increase in the thickness of the applied insulation as an energy saving solution. The payback of over-expenditure of materials for reducing the infiltration of outside air through building constructions is not more than two years.
    Key words: energy saving, building envelope, air permeability, reducing thermal protection properties.
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  • For citation: Yurchenko A. I., Schukina T. V., Kuznetsova L. V. Influence of Air Permeability of External Enclosures on Energy-Saving Operation of Buildings. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2018, no. 5, pp. 79-83. (In Russian).