Electrohydrodynamic drying - A concise overview

被引：90

作者：

Bajgai, Tirtha R.

Raghavan, G. S. Vijaya

Hashinaga, Fumio

Ngadi, Michael O.

机构：

[1] McGill Univ, Dept Bioresources Engn, Quebec City, PQ H9X 3V9, Canada

[2] Kagoshima Womens Jr Coll, Kagoshima, Japan

来源：

DRYING TECHNOLOGY | 2006年 / 24卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

air ions; corona current; drying rate; non-thermal drying; rehydration; shrinkage;

D O I：

10.1080/07373930600734091

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Electrohydrodynamic (EHD) drying is a novel method of non-thermal processing. The drying can be carried out using either AC or DC high voltages. The thermodynamic considerations regarding the lowering of temperature under EHD drying include rapid rates of evaporation and exothermic interaction of the electric field with a dielectric material. Multi-point and plate electrode systems are efficient in accelerating drying of agricultural materials. Compared to hot air (convective) drying systems, EHD drying systems offer lower food production costs along with superior quality in terms of physiochemical properties such as color, shrinkage, flavor, and nutrient content. Compared to convective and freeze-drying, EHD drying systems, given their simpler design and lesser energy consumption, show great potential for bulk and industrial drying applications.

引用

页码：905 / 910

页数：6

共 34 条

[1] EHD-enhanced drying of partially wetted glass beads [J].