Drying Conditions for Tomato Processing in Solar Dryer

Abstract

A solar dryer composed of solar collector, drying room and auxiliary heating system was constructed. Drying conditions, “The combination of dryer construction, dried product state during the process and drying medium state during the process”, which lead to quality dried product, were investigated. Test runs with the dryer were carried out during the summer period at many locations across the country, using tomato slices as dried product. The correct operational drying conditions, reached by fieldwork activities, are proposed.