强激光与粒子束2024，Vol.36Issue(1)：84-93,10.DOI:10.11884/HPLPB202436.230281
高功率微波加热三维温度模型仿真与验证
Simulation and verification of 3D temperature model for high power microwave heating
摘要
Abstract
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.关键词
微波加热/静态差分/有限差分/COMSOL仿真/温升平衡点Key words
microwave heating/static difference model/finite difference method/COMSOL simulation/equilibrium point of temperature rise分类
能源科技引用本文复制引用
吴昊,李少甫,王威,蒋成,唐颖颖..高功率微波加热三维温度模型仿真与验证[J].强激光与粒子束,2024,36(1):84-93,10.基金项目
National Natural Science Foundation of China(U1830201) （U1830201）
