Version 1
: Received: 19 August 2024 / Approved: 20 August 2024 / Online: 21 August 2024 (09:41:05 CEST)
How to cite:
Duan, J.; Xiao, W.; Liu, G.; Yang, F.; Zhu, H.; Yang, Y. A High-Performance Microwave Heating Device Based on a Coaxial Structure. Preprints2024, 2024081482. https://doi.org/10.20944/preprints202408.1482.v1
Duan, J.; Xiao, W.; Liu, G.; Yang, F.; Zhu, H.; Yang, Y. A High-Performance Microwave Heating Device Based on a Coaxial Structure. Preprints 2024, 2024081482. https://doi.org/10.20944/preprints202408.1482.v1
Duan, J.; Xiao, W.; Liu, G.; Yang, F.; Zhu, H.; Yang, Y. A High-Performance Microwave Heating Device Based on a Coaxial Structure. Preprints2024, 2024081482. https://doi.org/10.20944/preprints202408.1482.v1
APA Style
Duan, J., Xiao, W., Liu, G., Yang, F., Zhu, H., & Yang, Y. (2024). A High-Performance Microwave Heating Device Based on a Coaxial Structure. Preprints. https://doi.org/10.20944/preprints202408.1482.v1
Chicago/Turabian Style
Duan, J., Huacheng Zhu and Yang Yang. 2024 "A High-Performance Microwave Heating Device Based on a Coaxial Structure" Preprints. https://doi.org/10.20944/preprints202408.1482.v1
Abstract
Continuous-flow microwave heating stands out for its ability to rapidly and uniformly heat substances, making it widely applicable in chemical production. However, in practical applications, the permittivity of the heated liquid changes dramatically as the reaction progresses, affecting the efficiency and uniformity of continuous-flow heating. Herein, this work presents a novel microwave heating device based on coaxial structure for high-performance heating. Our approach commenced with the development of a multi-physical field model, incorporating a spiral polytetrafluoroethylene (PTFE) as a water channel and the coaxial waveguide as a container was established. The analysis shows that the uniform distribution of the sectional electric field of electromagnetic waves in the TEM mode within the coaxial structure can enhance heating uniformity. Then, a continuous-flow microwave heating system for different liquid loads was established, and experimental measurements were conducted. The heating efficiency for all loads exceeded 90%, which basely matched the simulation results, validating the accuracy of the model. Finally, the heating efficiency and uniformity under different permittivity loads were analyzed, as well as the impact of channel radius on heating efficiency. The device demonstrated high heating efficiency and stable heating uniformity across different loads. This continuous-flow microwave device is suitable for chemical research and production, contributing to the promotion of microwave energy applications in the chemical industry.
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
