ADVANCES IN HYBRID DRYERS: REVIEW IN TECHNOLOGICAL DEVELOPMENT

Abstract

Drying of the food is one of the oldest & finest methods of food preservation. Food dehydration finds its roots in the history of mankind, even the cavemen found the dehydration as the best alternative for food storage. To overcome the shortcomings of open sun drying various dryer designs had been proposed so far. From the conventional method of open-air drying to hybrid dryers, many technological changes are introduced in the drying mechanisms. This paper provides information about various designs of those solar dryers which are already developed for helping the reader to develop new and modified dryer structures. For this purpose, many designs are discussed in this paper.