Abstract
Precisely estimating the top electrode voltage of a radio frequency (RF) system is important for computer simulation of sample temperatures. The goal of this study was to validate whether the developed equations can be applied to determine the top electrode for RF heated soybeans with different moisture contents. Soybeans with moisture contents of 6.7% and 8.7% (w.b.) were treated in a 27.12 MHz, 6 kW RF system under 5 electrode gaps. The results showed that the top electrode voltage increased almost linearly both with increasing moisture content and decreasing electrode gap. The maximum difference of the estimated top electrode voltages was less than 10% relative error between the anode current and the measured current in the same conditions. The temperature distributions in three representative layers from simulation were in good agreement with those from experiment, as was the average root mean square error (RMSE) of 1.6% for temperature profiles in three selected positions. The validation results demonstrated that the established equation using anode current was suitable for estimating the top electrode voltage when soybeans of different moisture contents were heated in RF systems.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
