International Journal of Advanced Innovative Technology in Engineering (IJAITE)

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Study on Solar Dryers for drying Agricultural Products

Amar Tolmare, Prof. P. B. Ingle

Abstract :

Drying is the process of removing liquid from a solid material by evaporation. In drying technique, the concept of environment is of importance as it refers to the properties of air-vapor mixture that controls the rate of drying. The temperature and pace at which the liquid vaporises depends on the vapour concentration in the surrounding atmosphere when a suitable amount of heat is available for drying. Solar drying refers to techniques for drying that make use of the sun s energy. A sun dryer is a sealed container that protects food from damage, birds, insects, and unexpected rain. Solar dryers are divided into two categories: active and passive. Forced convection dryers are active, while natural convection dryers are passive. Active dryers are more expensive than passive dryers. Solar dryers must be made more efficient and less expensive. We evaluated the numerous studies on passive solar dryers for drying agricultural products in this paper.

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