Increase of energy performance of residential buildings with enclosing structures made of masonries with application of ceramic blocks

Abstract

Economy of energy resources in the Russian Federation is currently the urgent national environmental and economic problem as the package of measures providing energy saving has high profitability and environmental safety as compared with energy resources buildup. Therefore, much attention is paid to energy saving for the account of reducing heat loss through the enclosing structures at engineering and construction of residential buildings. Therewith, diverse elements of three-layer wall structures are reducing general reliability thereof at failure probability exposed to various factors. The buildings with the enclosing structures made of hollow porous blocks are slightly behind the three-layer wall structure by specific heat-resistant performance, with the base layer thereof consisting of solid ceramic brick and efficient heat insulation layer. The problem of construction and erection work quality is arising therewith. The heat engineering calculation of monolayer structure made as masonry of 510mm PORIKAM 14.3NF ceramic hollow porous blocks finished on the outside by heat insulation plaster is presented herein. Temperature fields are calculated in Therm 7.4 program. The design diagram for the structure part (cross section of the wall) is being made in the program for this purpose with indication of heat engineering data of the materials and overlaying of boundary conditions in both “inside” and “outside” surfaces. Graphic images of thermal fields and heat transfer are presented by the calculation results. Noncompliance with some regulatory requirements at making construction and erection operations are reviewed and simulated, with the reduced heat transfer resistance of the structures being calculated therewith. Noncompliance with the masonry technology results in increase of heat loss thereby reducing heat efficiency.