Mathematical Model of the Rapeseed Drying Process with the Use of Electromagnetic Microwave Radiation Based on Heat Calculations

Few studies have been devoted to mathematical modelling of the drying process of various crops using microwave drying units. The paper presents a mathematical model of the rapeseed drying process using electromagnetic microwave radiation based on heat calculations. The research aims at mathematical modelling of thermal processes of rapeseed heating when treated by electromagnetic microwave radiation. The computational and technological scheme of drying has been developed. According to the scheme, the drying process includes several cycles, which, in turn, consist of two stages. In the first stage, rapeseeds are heated to the desired temperature by applying electromagnetic microwave radiation. At this stage, there is an intensive release of moisture from rapeseeds, accumulating in the interseminal space. In the second stage, rapeseeds are blown off with atmospheric air to create a fluidized bed. The developed mathematical model allows predicting such parameters as the power of the microwave generator and fan depending on the drying unit capacity.