RESEARCH OF RATIONAL MODES OF DRYING RAPE SEED
ДОСЛІДЖЕННЯ РАЦІОНАЛЬНИХ РЕЖИМІВ СУШІННЯ НАСІННЯ РІПАКУ
DOI : https://doi.org/10.35633/inmateh-58-33
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Abstract
Determination of rational drying modes of seed grain is related to the kinetics of the drying process and qualitative indicators. Changing the drying conditions affects the drying process duration and also affects the seed germination. The mathematical processing of experimental data on the drying of rape seeds is based on experimental studies and the compilation of an experiment matrix based on three factors: the temperature and velocity of the heat carrier, the initial moisture content of the material. Selected variation levels or the boundary conditions of these factors are based on qualitative indicators, initial seed conditions before drying. Studies carried out on increasing the temperature of the coolant from 50° to 80°C increase the drying rate by 2.4 times, but reducing the germination of the material indicates the advisability of drying at 50°C. The obtained regression equations of duration and germination characterize the processes, proceeding from the effect of three factors with the exception from the equation of non-significant coefficients of the regression according to Stewdent's criterion. It also examines the adequacy of the mathematical model that corresponds to the real object. The change in the acid number substantially increases at the coolant temperature of 80°C, but it is normal.
Abstract in Romanian, Moldavian, Moldovan