Pulsed energy supply in oil products’ drying process

Abstract

This type of processing provides possibility of SHF electromagnetic fields’ application as a source of thermal energy for oil products’ dehydration. It was obtained an optimal regime for the application of this energy in form of pulses. Action duration of internal heat source on the product and rest duration between two consecutive drives were calculated in such a way, that the temperature gradient (which is one of the driving forces of the drying process) in the product maintains maximal values throughout the process. Field strength was chosen such a way, that the temperature gradient to obtain the maximum value, that is recommended by the product temperature regime given by the product drying technology. Pulse amplitude and frequency optimization has allowed a considerable reduction of energy consumption and drying temperature and duration.