فهرست نشریات علمی دسترسی آزاد ایران

Biodiesel can be produced through various methods, but the transesterification reaction is the most widely used due to its advantages, such as improved biodiesel quality, continuous in-line processing, reduced methanol and catalyst requirements, and enhanced energy efficiency. Recent advancements in biodiesel production technology have focused on optimizing the mixing process and improving mass and heat transfer between the two liquid phases involved in the transesterification reaction. These innovations have led to the development of new reactors that significantly increase reaction rates and reduce production time. In this study, the design and construction of a novel hydrodynamic cavitation reactor—a commercially viable renewable energy system—were investigated. After its construction and commissioning, the reactor was tested using standard biodiesel production materials. The evaluation results demonstrated that the optimal reaction time for biodiesel production was 3.13 minutes, with a rotational speed of 16,000 rpm and a flow rate of 0.83 liters per minute. The biodiesel produced met high-quality standards and complied with international fuel specifications. The highest hydrodynamic cavitation efficiency achieved was 6.19 mg/kJ. The results indicated that the transesterification reaction efficiency exceeded 88% at 3.13 minutes using this hydrodynamic cavitation reactor, highlighting an excellent recovery time for crude biodiesel production. This method significantly reduces processing time compared to conventional biodiesel production reactors, which typically require more than 20 minutes to over an hour to complete the process. The successful design, commissioning, and biodiesel production using this reactor represent a significant step forward in intensifying and optimizing the biodiesel production process.