India is a tropical country which has large amount of available solar radiation which can be harvested and converted to suitable from that is required by the energy utilizing process of our industries. Sago is one of the main food items that are in taken by the most people of India. The raw sago is not consumed directly instead it is processed by sago processing industries which produce processing of a consumable from of sago called starch. The sago include of drying of sago particles in open air convection method or by using electrically operated oven for sago drying.
In open air convection the area required for drying sago is more and suitable for large scale processing and the usage of electric oven requires huge amount of electricity for the effective drying of sago particles, to avoid these constraints we have designed an device known as step type solar dryer which use solar energy as its energy source and has high efficiency by reducing the total time for drying out the moisture content in sago particles. We have employed glass covers which the entry of dust particles to the sago particles thereby increase the purity of sago processing. The main advantage of this device is its efficiency in energy conversion of solar radiation it is exposed to it. We hope this device would be transformed in to an essential device in sago processing industries in near future due to its clean and green energy of operations which reduce the cost of production.