AN EXPERIMENTAL FRUIT DEHYDRATION SYSTEM

被引：6

作者：

HANSMANN, CF ^{[1
]}

VANNOORT, G ^{[1
]}

机构：

[1] UNIV STELLENBOSCH,DEPT FOOD SCI,STELLENBOSCH 7600,SOUTH AFRICA

来源：

DRYING TECHNOLOGY | 1992年 / 10卷 / 02期

关键词：

COMPUTER CONTROL; DATA ACQUISITION; DRYING RATE; SIMULATION STUDIES; TUNNEL DEHYDRATORS;

D O I：

10.1080/07373939208916448

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An experimental dehydration system comprising two dehydration units, and in which control and data acquisition functions were computerized, was developed. Product mass is continuously monitored using a built-in weighbridge which facilitates drying rate studies. Product temperatures are also monitored on a continuous basis. Control of wet bulb temperature is achieved by varying the rate of recirculation of air, in conjunction with humidification. Dehydration under isothermal conditions as well as programmed temperature control is supported. In the latter mode temperature programming is performed according to change in mass to simulate the typical air temperature profiles encountered in commercial dehydration tunnels during parallel- and counterflow operations.

引用

页码：491 / 508

页数：18