Study of the Ratio of Heat and Electrical Energy Expended in Microwave-Convective Drying of Grain

Nowadays, the design of the power supply of agro-industrial enterprises should be carried out considering the required installed capacity and the peculiarities of production. Thus, livestock farming involves waste, the disposal of which incurs costs. Simultaneously, preparation of feed (including drying of feed grain) is associated with significant energy costs. Thus, the availability of biogas equipment will allow synthesizing utilization technologies by processing waste into biogas and supplying energy to the equipment to carry out drying. Simultaneously, it is necessary to pay attention to technologies with reduced energy consumption for technological processes, for example, microwave-convective or infrared-convective drying of grain. These technologies have reduced energy consumption for moisture extraction, but the installed capacity of the equipment is higher than in traditional technologies. This paper aims to investigate the ratio of heat and electrical energy expended during microwave-convective drying and choose possible sources of renewable energy for implementing technological operations. The fact that grain drying is mainly carried out in the harvesting period before placing it in storage allows us to consider energy equipment as a source of thermal energy in the cold season when drying is not required.