Study of heat shielding qualities of brick wall angle with additional insulation located on the outside fences

Abstract

Abstract.The results of theoretical studies of heat-shielding properties of the angle of external wall a residential building are presented. The brick wall thickness of 510 mm was considered. The studies were performed for the I-st temperature zone of Ukraine. Heat insulation was located on the external side of enclosure. Thermal protection problems of the angle are consideration of the impact of heat-conductive inclusion on adjusted heat transfer resistance of enclosure. Conductive inclusion on the external angle area is its configuration. An additional layer of insulation in the angle area is necessary to use for bringing the level of thermal protection of angle area to the standards. The results of calculations of two-dimensional temperature fields were used for the analysis of thermal protection. Two options for additional insulation were studied. The first option: continuous strip insulation covering the external wall angle. Another one provides division of additional insulation layer into two parts and displacement them from the angle within the design scheme. Studies were performed for different thickness of additional insulation. There was additionally taking into account the value of insulation displacement from the angle for the second option. The optimal location and size of additional insulation were determined. The minimum amount of additional insulation under which the thermal protection requirements are performed was accepted like optimality criterion.

Standardization of Required Level Probability of No-Failure Operation of the Building Envelopes by the Criterion of Total Thermal Resistance

“…The floor slab is located in a residential building, which is under construction in Poltava, Ukraine. Statistical characteristics of thermal resistance distribution of homogeneous areas of the floor slab are calculated by the formulas (13) and (14). Table 1 demonstrates the results of the calculation.…”

“…Further research in the field of thermal reliability of building envelopes, and walls made from thin-walled steel structures in particular, was carried out in PoltNTU [5][6][7][8][9]. Thermotechnical research on building envelope was also done in [10][11][12][13][14][15][16]18].…”

Heat Treatment Technology of Porous Building Materials with Predictability of Thermophysical Properties

“…The analysis of publications has shown that in full are described various constructive scheme insulation, in particular, the thermophysical properties of new heat insulating materials [1][2][3][4] and methods of their production [5][6][7]. The questions of effective insulation of fencing structures were considered in works [8][9][10]. Thus, the work is devoted to the development and detailed scientific substantiation of the thermodynamic parameters of porous heat insulating materials production.…”