Journal of Scientific Engineering Advances

Abstract

This paper presents a mathematical modeling of steady-state heat transfer through multilayer building envelope structures. One-dimensional heat flow is considered for given indoor and outdoor air temperatures. The equivalent thermal resistance method is used for calculations, taking into account the thermophysical properties of individual building envelope layers and the heat transfer resistance on the internal and external surfaces.

The thermal resistances of the building envelope layers, the total thermal resistance, the heat flux density, and the temperature distribution across the wall thickness and at the layer boundaries are determined. The greatest temperature difference occurs in the layer with the highest thermal resistance, confirming the effectiveness of thermal insulation materials. The results can be used in the design of energy-efficient building envelopes and in thermal engineering calculations for buildings.