Different Types of Solar Dryer for Agricultural and Marine Products: A Reference Guide
Sivakumar E
PG Student, Department of Mechanical Engineering, Anna University Regional Campus, Tirunelveli, India
Rajesh K
PG Student, Department of Mechanical Engineering, Anna University Regional Campus, Tirunelveli, India
Receiving Date:
2016-06-05
Acceptance Date:
2016-07-31
Publication Date:
2016-08-16
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Abstract
Drying for agricultural products are one of the most attractive and cost-effective application of solar energy. Numerous types of solar dryers have been designed and developed in various parts of the world, yielding varying degrees of technical performance. Basically, there are four types of solar dryers; (1) direct solar dryers, (2) indirect solar dryers, (3) mixed-mode dryers and (4) hybrid solar dryers. This paper is a review of these types of solar dryers with aspect to the product being dried, technical and economical aspects. The technical directions in the development of solar-assisted drying systems for agricultural produce are compact collector design, high efficiency, integrated storage, and long-life drying system. Air-based solar collectors are not the only available systems. Water-based collectors can also be used whereby water to air heat exchanger can be used. The hot air for drying of agricultural produce can be forced to flow in the water to air heat exchanger. The hot water tank acts as heat storage of the solar drying system
Keywords:
Solar Dryer; Types of Dryer; Direct Type; Indirect Type; Mixed Mode dryer
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