包装与食品机械2016，Vol.34Issue(3)：38-41,4.DOI:10.3969/j.issn.1005-1295.2016.03.009
高压脉冲电场处理室多物理场仿真研究
A Simulation Study of Multilevel Physical Field on Pulsed Electric Fields
摘要
Abstract
The pulsed electric fields technology (PEF)is a highly effective method for liquid food preser-vation at low or moderate temperatures.One key component of this technology is the treatment chamber,in which the food is exposed to a pulsed electric field.The electric field strength and the temperature distribution in the treatment chamber have been identified as the key processing parameters affecting treatment efficacy and the sensorial characteristic of the food.In this paper,with developed different isolator geometries co-linear PEF treatment chamber as research object,all simulations were performed with the commercial software package COMSOL Multiphysics which analysised the stationary flow pattern,the electric field and the temperature distri-butions.Simulation results show that non-uniform electric field strength at the standard chamber,but elliptical isolator geometry chamber can effectively improve the electric field and flow field distribution,thus effectively reduce the temperature rise.It is concluded that elliptical embedded co-field sterilization treatment chamber is more suitable aiming at the pilot-scale and the industrialized PEF sterilization system with high performance re-quirements for its excellent coupled-field characteristics.关键词
高压脉冲电场/处理室/多物理场/仿真Key words
pulsed electric field/treatment chamber/COMSOL Multiphysics/simulation分类
轻工纺织引用本文复制引用
张姗姗,颜文旭,公群..高压脉冲电场处理室多物理场仿真研究[J].包装与食品机械,2016,34(3):38-41,4.基金项目
中央高校基本科研计划项目 （）
