Open AccessThe effect of the building blind area heat insulation on heat losses through the floor on the ground
Author(s) -
Elena Malyavina,
Elizaveta Gnezdilova
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/869/4/042017
Subject(s) - ground floor , dynamic insulation , thermal insulation , thermal , environmental science , heat transfer , materials science , mechanics , meteorology , engineering , vacuum insulated panel , civil engineering , physics , composite material , layer (electronics)
The relevance of the problem under studying is the appearance of non-traditional heating insulation structures of the floor on the ground, that can not be subject to calculations of heat losses using the existing methods. The purpose of this article is to find out the average characteristic heat transfer resistances in the design zones adopted in the Russian Federation for thermal protection of the floor on the ground by heat insulating the blind area of the building. Factors essential for possible elimination of condensation on the junction of the floor and the exterior walls were evaluated, as well as the possible maintenance of the floor temperature at the border of the serviced area not below specified values. The method of investigation is the annual calculation of unsteady thermal regime of flooring with the soil massive by finite difference method according to the implicit scheme. As the results we can state a significant impact of the type of soil on the heat loss through the ground floor, an insignificant impact of the width and thickness of the insulated building blind area. The most critical for the possibility of using the blind area heat insulation is the practical inability to provide acceptable temperatures of the floor at the wall-to-floor junction and on the border of the serviced zone. The main conclusion is that the heat insulation of the building blind reaches its goals at the room temperature of 10 °C. But it needs additional small heat insulation of the floor on the ground itself at a room temperature of 20°C and 30°C.