Optimization of Heat-Shielding Characteristics of the Exterior Walls of Country Cottages, Insulated With Monolithic Foam Concrete

Abstract

The heat-shielding properties of three-layer external walls insulated with monolithic foam concrete are considered in the article. The temperature is given in rooms operated in intermitt ent heating conditions. An optimal exterior wall design is proposed using monolithic foam concrete for the construction of country cott ages. For this design, the results of heat engineering calculations are presented using the analytical dependence of determining the heat transfer resistance, which ensures the minimum warm-up time of the wall. The results of the calculation are presented in tabular form for a given heating time and density of foam concrete. Also a relationship is described to determine the maximum allowable resistance to heat transfer of the outer wall at diff erent densities of monolithic foam concrete.

Energy efficient three-layer panels and elastic compliance of their middle layer

“…3i) respectively; i X is an unknown resulting force of the supporting structure distributed reaction i. On the right side of each equation system (5) there is displacement i of the elastic supporting structure under the effect of the panel reaction i X . After the solution of the system of equations (5) we find a final equation of elastic line of a multi-span panel exposed to shear load q and temperature difference in sheathing obtained with account of their middle layer shift and elastic compliance of supporting structures .…”

“…Three-layer panels with metal sheathing and efficient insulation material as a middle layer (hereinafter the panels) are used as wall envelopes and roof insulation. The use of mineral wool from basalt fiber adds a good thermal quality to the panels, allowing to noticeably reduce energy consumption for heating buildings [1][2][3][4][5][6]. Application of thin-profiled metal sheets in panels sheathing, separated by their middle layer thickness, allows to effectively use their geometric characteristics under bending loads and to use these panels as load bearing structures.…”