КОНЦЕПТУАЛЬНІ ОСНОВИ АНАЛІЗУ ТЕПЛО- І МАСОПЕРЕНОСУ У ШАРУВАТИХ КАПІЛЯРНО-ПОРИСТИХ ТІЛАХ

Abstract

The phenomena of contact heat and mass transfer between materials of different physical and chemical structures are quite widespread in the technological processes of various industries, which leads to the need for further studies of their kinetics, for example, when drying capillary-porous bodies. It has been established that many researchers studied non-stationary problems of heat and mass exchange of a piecewise-homogeneous unbounded two-layered plate with the surrounding medium, but some details of these processes have not yet been established. The authors of the paper give an analytical solution of the non-stationary problem of heat and mass conductivity of a piecewise homogeneous unbounded double-layered plate, which, with one surface, takes part in convective heat and mass transfer with the surrounding medium with constant potentials of heat and mass transfer, while the other surface is heat and moisture-insulated . This model adequately describes the processes of heat and mass exchange in a canvas, exhibited in the museum's premises, to which the flow of visitors moves. The first layer simulates the paints that are applied of the picture, and the second one – directly the basis of the painting (the art painting itself). As a result of the solution of the problem by mathematical physics, the influence of individual heat and mass transfer criteria on heat and mass transfer in this plate is established. The results obtained by the authors can be used to specify and improve the existing engineering methods for calculating the parameters of nonstationary heat and mass transfer in layered capillary-porous bodies, as well as to develop more advanced algorithms for controlling the artificial microclimate of museum premises on the basis of modern information technologies and fuzzy logic controllers / controllers, as in the stages of designing (constructing) artificial intelligence systems for the management of the climate of museum premises, and in their real modes their operation.