The Analysis of Thermal Properties of Selected Rock Materials by Thermovision Methods

Abstract

Heat accumulation means denotes the of a material to collect and store inside a specific amount of thermal energy, which can be then returned for a period time from the material. There are many investigations devoted to finding a method to collect heat when there is an excess and to use it when there is a deficit. The parameter determining whether the returned heat long for a term will have an impact on the room temperature, is the time of emission of stored energy. For the specified amount of stored energy, the emission time cannot be too short (in such a case too much heat in the unit time is returned) or too long (in this case a too small amount of heat in the time unit is returned, for example insufficient for heating rooms). The main aim of this research is to investigate the behavior (during cooling) of natural rock materials. On the basis of research and performed calculations the evaluation of tested materials to serve as the heat accumulator was performed. This analysis wo - uld allow them to be applied for the production of components, including precast, working at elevated temperatures, in which the accumulation and transfer of heat is important (eg. housing furnaces and fireplaces).