Functions of particle distribution by residence time and moisture content in drying units

The article deals with the theoretical analysis of experimental data and the calculation of the distribution function of the particles of the dried material, i.e., the dried mass of dried melon pulp in the coolant flow according to the residence time and moisture content in the drying chamber.As is known, the main advantage of carrying out the drying process in the drying chamber of a mechanized chamber-chain drying plant for drying melon fruits is the high intensity and continuity of the process. However, its continuity leads to unevenness in the true residence time of the dried material in the unit.The calculation was carried out by mathematical modeling and the application of data from experiments conducted on drying melons.Analysis of the distribution function for the residence time and moisture content of the material allows us to conclude: it is impossible to guarantee a uniform moisture content at the outlet of the drying chamber.The final moisture content of the material varies widely. The high intensity of the process in the drying chamber makes it desirable to use it in several industries, particularly in the production of dried melon. However, in combination with a traditional drying chamber, it is necessary to use as a second stage, for example, infrared lamps for radiant heat and mass transfer, which will ensure sufficient uniformity of the final moisture content of the processed material.

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