SOLAR DRYING OF FRUITS IN A MEDITERRANEAN CLIMATE

被引：5

作者：

ROSSELLO, C

BERNA, A

MULET, A

机构：

[1] Chemical Engineering, University of Illes Balears

来源：

DRYING TECHNOLOGY | 1990年 / 8卷 / 02期

关键词：

and phrases; blanching; Mixed kind solar dryer; solar drying of apricots; sulfiring; tray height effect;

D O I：

10.1080/07373939008959885

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Two twin forced convection dryers of 1.5 m3 were built in Majorca (Spain). They are of a mixed kind, with solar air collectors and a green house type chamber. A wooden frame supports polycarbonate walls. After two years operation they have been proven weather resistant. Six solar air collectors 2.12 x 1.05 m were used in each dryer. Apricots were processed in both dryers and at open sun. Three different tray heights were tested 5, 9 and 12 cm. The best results were obtained with 12 cm trays. Recycling part of the exhaust air improves the efficiency of the dryer. Blanching the fruits makes no difference to the dehydration rate. The rate of SO2 loss during the drying process is higher within the chamber. © 1990, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：305 / 321

页数：17

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