Review Paper on Solar Dryers

Abstract

This work is an attempt to utilize the benefits of using forced convection solar dryers through the use of a
ventilator in the remote areas where electricity and other power sources are non-existent. The solar air dryer was
designed with solar collector of tilt angle 11.0138’ so that the temperature remains much higher than the ambient
temperature. The tilt angle is chosen based upon the latitude of Coimbatore 11’ N. The main objective is to show that
the temperatures inside the dryer and the air-heater is higher than the ambient temperature during most hours of the
day-light. The drying of food items in the solar air dryer will be higher when compared with open air-drying of similar
items. This will show that the drying with the solar air dryer will provide better results than open air-drying. The
results will also depend upon the dryer performance on the proper air circulation through the system.