THERMAL ANALYSIS OF DIFFERENT CONFIGURATIONS FOR BUILDING INSULATION SYSTEMS WITH ACTUAL MATERIALS USING REAL SOLAR RADIATION AND TEMPERATURE DATA

Thermal insulation is present in several engineering areas, such as in civil construction, in industrial ovens, in satellites and launch vehicles and even in domestic applications, such as refrigerators. This work aims to present multilayer insulation for civil construction, thus reducing electrical energy expenditure on air conditioning the environment and increasing thermal comfort. To determine the heat flow through the wall, it was necessary to solve the heat diffusion equation in rectangular Cartesian coordinates for each insulation layer, and the boundary conditions of each differential equation depend on the neighboring layers, thus forming a system of equations. The Wolfram Mathematica computational software was used to solve the mathematical equations. The heat flow was determined for the four seasons of the year throughout the day for different configurations of thermal insulation, varying the insulating material and its thickness. After analyzing the results, it was possible to observe the great efficiency of the models with thermal insulation compared to traditional walls, making the internal wall's temperature profile more constant throughout the day.