DETERMINATION OF HEAT TRANSFER CONDITIONS WHEN COOLING A HIGH-TEMPERATURE SURFACE

The solution of inverse heat conduction problems for the identification of parameters of mathematical models is of particular importance for ensuring the adequacy of these models in the presence of experimental information about the thermal process under study. The effectiveness of decisions made when designing various power equipment depends both on the depth and reliability of knowledge of heat exchange phenomena and on the adequacy of modeling various thermophysical processes. In order to create effective methods for diagnosing and identifying such processes, experimental studies are conducted and their results are processed. These methods can be based on solutions of inverse problems of heat conduction for both homogeneous and composite media. In some cases, methods for solving inverse problems are the only means of obtaining the necessary information about the object under study. This paper presents a mathematical model for determining the temperature field of a specially designed thermal probe rod and a method for solving the boundary inverse problem of thermal conductivity (BIP), which is reduced to determining heat flows and heat transfer coefficients based on experimental temperature measurements at one or more internal points. The value of the heat flow and the heat transfer coefficient at the working end of the thermoprobe rod when it is cooled by liquid will be determined as a result of solving the OZT. The solution itself will be performed by a direct method, and its implementation will be carried out numerically.