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《Food & Machinery》 2018-04
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Design of rectangular microwave spouted bed with single waveguide based on electric field distribution

SHUAI Wei-kui;WANG Rui-fang;GAO Ya-ping;WU Long;XU Qing;LI Zhan-yong;Tianjin University of Science and Technology;Tianjin Key Laboratory of Integrated Design and On-line Monitoring for Light Industry & Food Machinery and Equipment;  
The structure of rectangular microwave spouted bed was optimized based on the good electric field intensity and distribution.The evaluation index was the coefficient of variation COV which reflected the uniformity of the electric field distribution,and the average electric field intensity Emeanand the local gathering parameter E_(max)/E_(mean).The numerical simulation of the electric field intensity in the spouted bed was carried out by using the COMSOL Multiphysics to analyze the effects of the parameters a(spouted bed width),H(waveguide position)and L(spouted bed height).The results showed that the effect of a value on COV and E_(max)/E_(mean )was the most significant,but H value on Emeanwas the most significant.The interaction between a and L was significant for COV,E_(mean )and E_(max)/E_(mean).The optimized structure of rectangular microwave spouted bed with single waveguide was:a=427mm,H=200mm,and L=1 000mm.
【CateGory Index】: TS203
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