Browsing by Author "Yahyaoui, Boudour"
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- Mechanical innovation for sustainable olive oil extraction: application of ultrasound and thermal integrationPublication . Yahyaoui, Boudour; Mesquita, L.M.R.; Brahim, AhmedThis work presents the design, modeling, and simulation of a continuous Ultrasonic Thermal Inline Reactor (UTIR) for sustainable extra virgin olive oil extraction. The proposed system integrates a double tube heat exchanger for rapid thermal preconditioning and an ultrasonic reactor for enhanced oil recovery and preservation of bioactive compounds. Analytical design calculations were performed to size the heat exchanger, and the CFD simulations (SolidWorks Flow Simulation) that validate the thermal performance are presented in the final section. The system demonstrated stable operation with minimal energy loss. Compared to a traditional two phase mill, where malaxation requires about 45 minutes and the average extraction efficiency is 86.7%, the UTIR enables a continuous process with a reduced processing time of only 10–25 minutes by combining thermal and ultrasonic treatment inline. The integration of ultrasound increases extraction performance by up to +5.5 points, allowing yields of 92.2% and a final oil recovery of 25–27% instead of the typical 21%. the UTIR provides a continuous, and environmentally sustainable alternative to conventional batch malaxation, suitable for medium scale industrial operation and supporting modernization of the olive oil sector.