Forced Convection Solar Dryer For Multipurpose Drying Process

Mechanical Engineering

The solar drying system utilizes the solar energy to heat up a air and to dry any food substance which is loaded, which is not only beneficial but also it reduces wastage of agricultural products and helps in preservation of agricultural products, but it also makes transportation of such dried product easily and promotes the health and welfare of the people. This paper presents the design and construction of a solar dryer for drying a agriculture product. The dryer is composed of solar collector (air heater) with the trapezoidal collector and a solar drying chamber containing rack of four net trays both being assimilated together. The air allowed in through air inlet is heated up in the solar collector chamber and channelled through the drying chamber where it is utilized in drying (removing of the moisture content from the food substances or agricultural product which is loaded in it). The design was based on the geographical location which is Nagpur and meteorological data were obtained for proper design specification. Locally materials were used for the construction are iron bar and sheet, glass, CR metal sheet and net for the trays.

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