ICT Tool : Development of Calculator for Design of Solar Dryer

Henry David said "Men Have Become the Tools of Their Tools." In this era all the developing technology begin from calculation influenced by the computer programming ICT-tool. Today energy is main problem, by utilizing sun light energy(solar energy) problem can be minimize. Sun drying is still the most common method used to preserve agricultural products in most tropical and subtropical countries. However, being unprotected from rain, wind-borne dirt and dust, infestation by insects, rodents and other animal, products may be seriously degraded to the extent that sometimes become inedible and the resulted loss of food quality in the dried products may have adverse economic effects on domestics and international markets. The conditions in tropical countries make the use of solar energy for drying food practically attractive and environmentally sound. Dryers have been developed and used to dry agricultural products in order to improve shelf life. Solar drying facilities are economical for small holders, especially under favourable meteorological conditions. This paper discuss to design to calculate design of solar dryer. In this different parameters are determined i.e Moisture removed, Water activity, Equilibrium Relative humidity, Total Heat Needed, Enthalpy, Average Drying rate, Drying time, Collector area, Length of air vent, Velocity required. The calculator was developed using C language Version 3.0 Turbo c++ copyright (c)1990, 1992 by Borland International was developed.