ONE DIMENSIONAL UNSTEADY HEAT CONDUCTION OF A MULTI-LAYERED WALL UNDER SUDDEN TEMPERATURE CHANGES AT WALL BOUNDARIES

Abstract

Research in the field of heat conduction has a broad application in various industrial sectors and engineering disciplines. One of the key aspects of this research is the analysis of thermal characteristics of materials, considering that conduction directly influences the thermal comfort within a structure. The proper distribution of temperature within a wall directly reflects the properties of the material itself and provides predictions of thermal comfort.
This study is expected to present specific data about the temperature profile within a multi-layered wall during a certain time step, using both analytical and finite difference methods. Based on the obtained results, an evaluation of the error between the analytical and numerical methods will be presented. The described multi-layered wall represents the external wall of an existing building in Niš, Serbia.