Information Measurement System for Thermal Conductivity Studying

A modern approach to improving energy efficiency and reducing heat losses in the building, heat energy, agricultural and other fields involves the use of modern materials with high heat-insulating characteristics. The main indicators of the quality of heat-insulating materials and products are thermal conductivity and the associated thermal resistance. An analysis of existing methods and instruments for studying thermal conductivity shows that for solid, inhomogeneous, low-heat-conducting materials, the most acceptable are the devices that implement standardized stationary methods, such as a Heat flow meter apparatus and Guarded hot plate methods. The metrological support of these measurements in world practice is based on the reference installations and working standards, in Russia an additional method was introduced using a multi-valued measure of thermal conductivity. In Ukraine, it is currently relevant to create our own metrological base for measuring thermal conductivity, especially in the range of its low values.