The study considers the method of analysis and estimation in the computation of contact device parameters.
The relevance of the topic has been noted; the two basic categories of modern approaches to the calculation of processes in heat exchangers have been provided. Then, heat and mass transfer in devices is analyzed. A scheme of mass transfer at the inlet and outlet of a heat exchanger has been presented as an illustration.
Special attention has been paid to the development of formulas for the described processes. The study precisely specifies all parameters applied and provides formulas for practical calculations. The author aims to maximally simplify the derived formulas for convenient and time-saving calculations, which is an important fact. The practical use of these calculations has been studied with specialized installations. The author has detected the optimal correlation between descending and ascending gas flow in the device, which allowed the comparison of certain calculation indices.
In the course of the study, the results of calculations performed using the obtained criteria dependence have been compared with the experimental data. This has shown the high accuracy of the proposed method, as the mean square deviation of the calculated values of heat and mass transfer intensity coefficient is 4.7 %. Therefore, the proposed estimation method and the derived equations can be used for practical calculations of contact heat exchangers with accuracy sufficient for engineering purposes.
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