MATEC Web Conf.
Volume 230, 20187th International Scientific Conference “Reliability and Durability of Railway Transport Engineering Structures and Buildings” (Transbud-2018)
|Number of page(s)||6|
|Section||Structures, Buildings and Facilities|
|Published online||16 November 2018|
The heat loss calculating methods of external walls in the buildings reconstruction
Kharkiv National University of Civil Engineering and Architecture, 61002, Sumska St. 40, Kharkiv, Ukraine
2 Ufa State Petroleum Technological University, 450000, Mendeleeva St. 195, Ufa, Russia
* Corresponding author: firstname.lastname@example.org
Heat loss analysis in cladding of brick buildings under reconstruction is presented. Thermograms obtained under thermovision inspection and window systems operating experience in conditions of the Republic of Bashkortostan are thoroughly studied. Live issue of increasing buildings energy performance in public utilities sector may largely be solved by replacement of existing window units made of wood to new PVC profile windows equipped with multi-glazed glass units both in brick and frame-panel old buildings. Significant heat loss occurs in junctions between the window frames and the wall in jamb areas. Therefore for the heat conduction matrix for the finite element is used the heat balance equation. Use of the software application to choose certain measures to eliminate the thermal bridges enables to get the thermotechnical calculations in the junction between the window and the exterior wall in the form of temperature fields. Practical recommendations for arrangement of heat insulation in junctions between the window frames and the wall to eliminate actual defects and for normal room conditions are made under examinations. To get the heat conduction matrix for the finite element we will use the heat balance equation.
© The Authors, published by EDP Sciences, 2018
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