Comparison of performance of direct solar air heating with water based solar air beating for drying application

摘要

Drying of food products is one of the most widely practiced activities through out the world. Almost all the crops have to be dried in order to improve the shelf life of the product. A study by AN [1998] has shown that various food items, to the tune of 65 million tons, worth Rs.76,000 crores per annum, are lost during post-harvest phase because of unavailability of proper treatment technology.