| Citation: | Wu Hao, Li Shaofu, Wang Wei, et al. Simulation and verification of 3D temperature model for high power microwave heating[J]. High Power Laser and Particle Beams, 2024, 36: 013014. doi: 10.11884/HPLPB202436.230281
|
Microwave heating inhomogeneity has always been a hot issue in microwave heating control research. According to the physical structure of the microwave heating device, the static difference model of the surface temperature of each layer in the furnace is established, and the actual power of microwave heating is obtained by combining with experiments. Based on the finite difference method of heat transfer, the temperature distribution model in 3D space is established, and the effectiveness of the model is verified by MATLAB and COMSOL simulations. The equilibrium temperature of the heated medium obtained by uniformly heating the microwave is compared with the temperature distribution during uneven heating, the partial temperature rise equilibrium points of the medium during the microwave heating process are identified. Finally, comparison is carried out to find out the best point for the control object for expert PID (proportion-integral-derivative) microwave heating. The experimental results show that this method can accurately measure the equilibrium temperature of liquid heated medium at any time, and can make microwave heating more widely used in industrial production.
| [1] |
Li Hangren, Liu Saiyu, Xu Wence, et al. The effect of microwave on the crystallization behavior of CMAS system glass-ceramics[J]. Materials, 2020, 13: 4555. doi: 10.3390/ma13204555
|
| [2] |
Zhong Jiaqi, Liang Shan. A data-driven based spatiotemporal model reduction for microwave heating process with the mixed boundary conditions[J]. Processes, 2021, 9: 827. doi: 10.3390/pr9050827
|
| [3] |
Chan T V C T, Reader H C. Computational design of a multiplex magnetron cavity[C]//Proceedings of IEEE AFRICON’96. 1996: 523-527.
|
| [4] |
Jeni K, Yapa M, Rattanadecho P. Design and analysis of the commercialized drier processing using a combined unsymmetrical double-feed microwave and vacuum system (case study: tea leaves)[J]. Chemical Engineering and Processing:Process Intensification, 2010, 49 (4) : 389-395. doi: 10.1016/j.cep.2010.03.003
|
| [5] |
Wang Shunmin, Hu Zhichao, Han Yongbin, et al. Effects of magnetron arrangement and power combination of microwave on drying uniformity of carrot[J]. Drying Technology, 2013, 31 (11) : 1206-1211. doi: 10.1080/07373937.2013.783590
|
| [6] |
Zhou Mingchang. Study on numerical simulation of microwave heating and temperature control[D]. Mianyang: Southwest University of Science and Technology, 2020.
|
| [7] |
Dai Chengjun. The design and development of the microwave activation equipment on the industry[D]. Mianyang: Southwest University of Science and Technology, 2012.
|
| [8] |
Yang Biao, Wang Shili, Guo Linjia, et al. Numerical calculation of temperature uniformity in microwave heating based on moving mesh[J]. Control and Decision, 2019, 34 (1) : 113-120.
|
| [9] |
Zhong Jiaqi, Liang Shan, Xiong Qingyu. H∞ guaranteed cost temperature tracking control for microwave heating Debye media process[J]. Acta Automatica Sinica, 2018, 44 (8) : 1518-1527.
|
| [10] |
Zheng Hongfei. Fundamentals of thermodynamics and heat transfer[M]. Beijing: Science Press, 2016.
|
| [11] |
Liu Yanfeng, Liang Xiujun, Gao Zhengyang, et al. Heat transfer[M]. Beijing: China Electric Power Press, 2021.
|
| [12] |
Zhou Mingchang, Li Shaofu. Multi-feed microwave heating temperature control system based on numerical simulation[J]. Journal of Microwaves, 2019, 35 (5) : 92-96.
|
Figures(12) / Tables(2)
DownLoad:
