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文章摘要
黑胡椒颗粒的介电特性混合方程研究
Mixing Equations Study on Dielectric Properties of Black Pepper Particles
投稿时间:2019-05-06  修订日期:2019-06-11
DOI:
中文关键词: 黑胡椒  介电特性  射频  仿真
英文关键词: black pepper  dielectric properties  radio frequency  computer simulation
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目),中国博士后科学基金
作者单位E-mail
王品正 上海海洋大学 pinzhengwang306@163.com 
张汝怡 上海海洋大学  
朱亚莉 上海海洋大学  
李双 上海海洋大学  
李锋 上海海洋大学  
焦阳 上海海洋大学 yjiao@shou.edu.cn 
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中文摘要:
      通过介电混合方程对黑胡椒颗粒的介电特性进行推算,对比模拟值与实验值以验证介电特性混合方程的适用性。以黑胡椒颗粒为研究对象,测定压缩黑胡椒粉的介电特性,并运用介电特性混合方程—CRIME方程、LLLE方程、BE方程计算获得胡椒颗粒的介电特性,随后运用COMSOL Multiphysics软件建立静电场-热传导双向耦合模型对射频加热仿真,并通过27.12 MHz,12 kW的平行极板式射频系统进行加热实验验证。采用CRIME方程获得的胡椒颗粒介电特性运用在仿真中与试验结果温度分布为最接近。本研究证明了通过压缩胡椒粉末介电特性代入CRIME方程能够有效获得黑胡椒颗粒的介电特性,这有助于工业生产中颗粒物料射频加热工艺的研发。
英文摘要:
      The aim of the research is to find the optimum mixing equation for dielectric properties prediction and verify the prediction accuracy in a radio frequency heating process. By measuring the dielectric constant of grinded black pepper powder, the corresponding dielectric properties of particles were calculated by using CRIME, LLLE and BE equation, respectively. The obtained dielectric properties were applied in COMSOL Multiphysics? simulation for a radio frequency heating process and then verified by a parallel-plate radio frequency system (27.12 MHz, 12 kW). Result shows that the dielectric properties obtained by the CRIME equation provide the most reasonable temperature distribution as compare to the experimental results. The research proves that CRIME equation is a suitable model for black pepper particle dielectric properties prediction, which may have an industrial application for heating process prediction of other granular materials.
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