Design of an electrical dryer for plantation crops
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Date
1999
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Abstract
Sun drying of plantation crops becomes impossible during rainy season and so artificial drying has to be resorted to. The electrical dryer developed by CPCRI is an indirect type dryer suitable for all seasons to dry coconut, cardamom and pepper. It is tray type dryer with mixed flow and forced hot air circulation. Heating unit consits of 6 numbers of 1K W strip heaters and hot air blower with 0.5 HP motor. Themostatic / electronic temperature control is provided to set the maximum drying temperature to suit the requirement of different crops. This dryer can be used to dry 1000 coconuts / batch in 32 hours and 75 kg of cardamom (wet) in 25 hours. The cost of drying per kilogram of copra and cardamom is calculated to be Rs 1.83 and Rs 1.96 respectively.
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Proceedings of the eleventh Keraka science congress 1999 p-451-455