Experimental methods for determining the unsteady-state heat and moisture behavior of building enclosing structures

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Abstract

Improvement of methods for determining heat transfer resistance and unsteady-state heat and moisture regime of enclosing structures is one of the current topics in modern building thermophysics. This article describes methods for determining heat transfer resistance and methods for determining coefficients that influence the temperature and humidity conditions of enclosing structures, regulated by interstate standards. A description of the innovative method of heat transfer resistance allowing to determine the reduced heat transfer resistance of enclosing structures in the summer proposed by V.P. Vavilov, A.V. Grigoriev, A.I. Ivanov is given. and D.A. Nesteruk. A useful model by S.G. Golovnev, K.M. Mozgalev, A.E. Rusanov is presented. The method for increasing thermal homogeneity allowing generating operating conditions when conducting laboratory studies to study the characteristics of vapor permeability of materials is described by G.P. Vasiliev, V.A. Lichman, A.M. Vinogradov, I.A. Vasiliev, V.G. Silaeva. A device by A.S. Petrov is presented, which allows generating operating conditions during laboratory studies to investigate the characteristics of vapor permeability of materials.

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About the authors

K. P. Zubarev

National Research Moscow State University of Civil Engineering; Research Institute of Building Physics Russian Academy Architecture and Construction sciences; RUDN University

Author for correspondence.
Email: zubarevkirill93@mail.ru

Candidate of Sciences (Engineering) 

Russian Federation, 26, Yaroslavskoe Highway, Moscow, 129337; 21, Lokomotivniy Driveway, Moscow, 127238; 6, Miklouho-Maclaya Street, Moscow, 117198

Y. S. Zobnina

National Research Moscow State University of Civil Engineering

Email: selma.inufo@gmail.com

Student

Russian Federation, 26, Yaroslavskoe Highway, Moscow, 129337

Yu. A. Sapronova

National Research Moscow State University of Civil Engineering

Email: ho5metown@gmail.com

Student

Russian Federation, 26, Yaroslavskoe Highway, Moscow, 129337

Z. R. Alikhanova

National Research Moscow State University of Civil Engineering

Email: annarostova12@gmail.com

Student

Russian Federation, 26, Yaroslavskoe Highway, Moscow, 129337

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2. Fig. 1. Model proposed by S.G. Golovnev, K.M. Mozgalev, A.E. Rusanov: 1 – rectangular frame; 2 – vertical posts; 3, 4 – heat-insulating element; 5 – heating element; 6 – grounding wire [17]

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3. Fig. 2. Diagram of the device proposed by V.P. Vavilov, A.V. Grigoryev, A.I. Ivanov, D.A. Nesteruk: 1 – enclosing structure; 2 – heating area; 3 – heater [18]

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4. Fig. 3. Schematic diagram of the device proposed by G.P. Vasiliev, V.A. Lichman, A.M. Vinogradov, I.A. Vasilyeva, V.G. Silaev: 1 – outer supporting layer; 2 – inner supporting layer; 3 – key; 4 – thermal insulation; 5 – heater; 6 – controller; 7, 8 – temperature sensors [19]

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5. Fig. 4. The device proposed by A.S. Petrov: 1 – electronic scales; 2 – thermostat; 3 – heat carrier; 4 – bowl; 5 – liquid; 6 – collar with hole; 7 – sample of material; 8 – sealing substance; 9 – heating device; 10 – bell of wind tunnel; 11 – fan; 12 – refrigeration chamber [20]

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