Modeling of Non-stationary Heat Transfer of Floor Structures of Rooms with Artificial Ice

Abstract

Statement of the problem. The purpose of the scientific article is to develop an adjusted methodology and program for calculating the non-stationary heat exchange of floor structures with artificial ice, taking into account the asymmetric radiation cooling of heat exchange surfaces to determine the time they reach the critical temperature. Results. An important characteristic of the adjusted technique is the use of the average coefficient of irradiation of the surfaces of the structure, as well as taking into account the displacement of the thermal center during its asymmetric heating. The technique takes into account the radiant component from the ice surface in the determining generalized heat transfer coefficient. Conclusions. The considered features make it possible to increase the accuracy of calculating the cooling time of the surface of the structure to critical values, which can be used to adjust the operating modes of microclimatic systems of rooms with artificial ice.