CAJ | 학술논문

给出了微波与热风耦合同步加热物料的数学物理模型，以微波与热风耦合加热土豆为例，建立了完整的三维仿真模型，采用数值模拟法，分别得到了位于耦合加热腔内7个不同位置上土豆最终温度场的分布参数，并以实验加以验证，对数值模拟所得的仿真结果进行了分析与评定。结果表明，不同位置对热风微波耦合加热物料的效果影响极大，这主要体现在影响微波电磁场能量转化为热能功率的大小，以及密度分布及被加热食品温度场分布的不均匀性，故在采用热风微波加热食品时，应当要重视物料位置对耦合加热效果的影响。
급출료미파여열풍우합동보가열물료적수학물리모형，이미파여열풍우합가열토두위례，건립료완정적삼유방진모형，채용수치모의법，분별득도료위우우합가열강내7개불동위치상토두최종온도장적분포삼수，병이실험가이험증，대수치모의소득적방진결과진행료분석여평정。결과표명，불동위치대열풍미파우합가열물료적효과영향겁대，저주요체현재영향미파전자장능량전화위열능공솔적대소，이급밀도분포급피가열식품온도장분포적불균균성，고재채용열풍미파가열식품시，응당요중시물료위치대우합가열효과적영향。
This study aimed to investigate the effect of different positions on the hot-air and microwave coupled heating. Based on the mathematical model of hot-air and microwave coupled heating, distribution parameters of the end temperature field for seven spots were first obtained for whole potato heated in a particular cavity by numerical simulation techniques. The simulations were further by verified by the experimental results that different spots showed varied heat power values and density distribution after the conversion of microwave electromagnetic energy into heat power and uneven distribution of the temperature field. Therefore, great attention should be paid to the food spots in the hot-air and microwave coupled heating.