Based on the transformations and integration of a simplified system of differential equations of the transfer of a scalar and vector quantity in a fluid or gas flow, integral criteria are substantiated that affect the course of processes in heat and mass exchange devices and the distribution of temperature, concentration and velocity in the flow. Analytical dependencies have been obtained that relate the dimensions of the flow part, hydrodynamic and thermodynamic parameters, to the temperature, concentration and velocity profile. The use of the materials presented in the article will simplify the process of creating and fine-tuning a heat and mass transfer device and will give the opportunity to optimize its geometry.
heat and mass transfer device, parameter distribution, flow part dimensions
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