The precise condition of thermal runaway in microwave heating on chemical reaction  

作　　者：HUANG KaMa LU Bo 

机构地区：[1]School of Electronics and Information Engineering,Sichuan University,Chengdu 610064,China

出　　处：《Science China(Technological Sciences)》2009年第2期491-496,共6页中国科学（技术科学英文版）

基　　金：Supported by the National Natural Science Foundation of China (Grant No.60531010)

摘　　要：The precise condition of thermal runaway in microwave heating on chemical reaction with a feedback control system is quantitatively studied. First, the precise condition of thermal runaway in engineering application is derived based on the principle of the feedback control system. Then, the temperature rising rates for 4 different kinds of reaction systems placed in the waveguide and irradiated by micro-wave with different input powers are simulated. Finally, the relationship, which is inattentive so far, between the thermal runaway and the sensor's response time is discussed.The precise condition of thermal runaway in microwave heating on chemical reaction with a feedback control system is quantitatively studied. First, the precise condition of thermal runaway in engineering application is derived based on the principle of the feedback control system. Then, the temperature rising rates for 4 different kinds of reaction systems placed in the waveguide and irradiated by microwave with different input powers are simulated. Finally, the relationship, which is inattentive so far, between the thermal runaway and the sensor’s response time is discussed.

关 键 词：MICROWAVE CHEMISTRY MICROWAVE heating thermal RUNAWAY MULTI-PHYSICS computation 

分 类 号：O642[理学—物理化学]