Research Status of Microwave Heating Performance Optimization
Microwave heating is a process in which electric,magnetic and thermodynamic fields are coupled with each other,and the two prominent problems of uneven temperature distribution and thermal runaway during the heating process have seriously hindered the development of this technology.Given these two major problems,a microwave heating performance optimization study is proposed.The technology is adopted to further improve the uniformity of microwave heating,increase the heating efficiency and avoid the occurrence of thermal runaway.This review paper briefly describes the existing methods for optimizing microwave heating performance,which mainly include adjusting the mechanical structure of microwave resonant cavities to optimize heating performance.By ad-justing or controlling the structure of mode stirrers,turntables,waveguides,etc.within the heating cavity,thereby improving the distribution of electromagnetic fields inside the cavity;Optimizing heating performance through op-timal control,combining the optimal control method with the microwave heating model to achieve temperature tracking control of the heating medium;Microwave parameter optimization improves heating performance.Starting from the microwave generator,the impacts of its power and frequency on heating performance were investigated,and combined optimization algorithms to enhance microwave heating performance;The multi-agent cooperative consensus optimizes the heating performance,intelligentizes some devices inside the resonant cavity,and uses the consensus algorithm for cooperative control to optimize the temperature distribution of the heated medium and im-prove the heating efficiency.Finally,the research on microwave heating performance optimization was prospected.
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