350 rub
Journal Electromagnetic Waves and Electronic Systems №7 for 2013 г.
Article in number:
Investigation of efficiency of microwave heating of chemical substances samples in single-mode resonator cavity
Authors:
V.V. Komarov, A.A. Dovgan
Abstract:
Microwave energy is widely utilized nowadays in such scientific spheres as physical chemistry, microbiology, material science, electromagnetic compatibility and etc. Single-mode and multi-mode microwave chambers of different shape with usual operating frequency 2,45 GHz are used for investigation of processes of electromagnetic waves interaction with solid and liquid media. All single-mode applicators of such type are intended for exposition of one sample with microwave power. Design of the single-mode chamber for heating several samples of chemical substances is proposed in present work. Modified re-entrant cavity has been chosen as a basic unit of microwave heating system and it allows decreasing the aspect ratio sizes of the cavity at operating frequency 915 MHz and increasing uniformity of heat release in the samples. The dominant mode of the resonator is excited with the help of the inductance probe.
Electromagnetic and thermal fields inside resonator and return loss characteristics for three liquid substances were studied using numerical models on the finite element method and finite difference time domain method.
Pages: 35-40
References
- Paffi A., Apollonio F., Liberti M., Grandinetti L., Chicarella S., d´Inzeo G. A new wire patch cell for the exposure of cell cultures to electromagnetic fields at 2,45 GHz design and numerical characterization // Proceedings of the 39th European Microwave Conference. 2009. Rome, Italy. R. 870-873.
- Rosa R., Veronesi P., Leonelli C., et al. Modeling of microwave assisted combustion synthesis appied to the joining of high temperature ceramics // Proceedings of the 12th Int. Conference on Microwave and high Frequency Heating. 2009. Karlsruhe, Germany. R. 352-355.
- Fukushima H., Sato M. Microwave heating characteristics of metallic powders by single-mode cavity separated in E and H fields // Proceedings of the First Global Congress on Microwave Energy Applications. 2008. Otsu, Japan. R. 139-142.
- Kayser T., Pauli M., Weisbeck W. Design of a microwave applicator for nanoparticle synthesis // Int. J. Microwave Power and Electromagnetic Energy. 2008. V. 42. №2. R. 21-30.
- Huang K.-M., Lin Z., Yang X.-Q. Numerical simulation of microwave heating on chemical reaction in dilute solution // Progress in Electromagnetic Research. 2004. V. 49. R. 273-289.
- Kalhori S., Elander N., Svennebrink J., Stone-Elander S. A re-entrant cavity for microwave enhanced chemistry // Int. J. Microwave Power and Electromagnetic Energy. 2003. V. 38. №2. R. 125-135.
- Komarov V.V. Optimizacziya S-parametrov chislenny'x modelej dissipativny'x SVCh-e'lementov slozhnoj konfiguraczii // E'lektromagnitny'e volny' i e'lektronny'e sistemy'. 2006. T. 11. № 2/3. S. 64-73.
- Komarov V.V., Savina A.G. Chislenny'e modeli speczializirovanny'x kamer dlya mikrovolnovogo oblucheniya obrazczov die'lektricheskix sred // Naukoemkie texnologii. 2009. №6. S. 23-27.
- Komarov V.V., Tang J. Dielectric permittivity and loss factor of tap water at 915 MHz // Microwave and Optical Technology Letters. 2004. V. 42. №5. R. 419-420.
- Axadov Ja.Ju. Die'lektricheskie svojstva chisty'x zhidkostej. M.: Izd-vo Standartov. 1972.
- Wang Y., Wig T.D., Tang J., Hallberg L.M. Dielectric properties of food relevant to RF and microwave pasteurization and sterilization // Journal of Food Engineering. 2003. V. 57. R. 257-268.
- Mechenova V.A., Yakovlev V.V. Efficiency optimization for systems and components in microwave power engineering // Int. J. Microwave Power and Electromagnetic Energy. 2004. V. 39. №1. R. 15-29.
- Komarov V.V. Speczializirovanny'e sistemy' obrabotki obrazczov dissipativny'x materialov i sred SVCh-izlucheniem // Diss - dokt. texn. nauk. Saratov: SGTU. 2007.