A predictive approach in modeling and simulation of heat and mass transfer during microwave heating. Application to SFME of essential oil of Lavandin Super

作者：Navarrete A; Mato R B^*; Cocero M J

来源：Chemical Engineering Science, 2012, 68(1): 192-201.

DOI：10.1016/j.ces.2011.09.026

• Microwave heating
• Evaporation
• Essential oils
• Food processing
• Heat transfer
• Simulation

Solvent Free Microwave Extraction (SFME) is a new and faster process with higher energy efficiency used to extract essential oils. Nevertheless, so far no modeling efforts have been found on the subject. In this work a predictive modeling approach to the microwave extraction of essential oils applied to the SFME is proposed. The model includes the interaction between electromagnetic energy and the material through the use of Maxwell%26apos;s equations together with estimation of the dielectric constants. The evaporation of water from the plant is also simulated. The results indicate that it is possible to model this process with a predictive approach of the properties of the system. The microwave heating is underpredicted in the area closer to the walls, thus the evaporation resulting in simulations is lower than the measured values. Nevertheless, the results show a behavior very similar to the experimental values.

• 出版日期2012-1-22