Solar energy is the most promising of the renewable energy sources in view of its apparent limitless potential. A\r\nsmall scale villageââ?¬â??level solar dryer for tomato was developed under Yola weather at latitude 9Ã?°14 N and longitude 12Ã?°26 E\r\nusing locally available materials and the performance was evaluated. The essence of the dryer was to achieve the effective\r\nmethod of tomato preservation and eliminate the drudgery and product deterioration associated with traditional methods of open\r\nsun drying of tomatoes. This is in view of alleviating the weather limitation experienced by farmers in crop drying especially\r\nfor tomatoes. The solar dryer consists of tray, reflective walls and glass roof, a preheating air absorber plate, inner panels for\r\nremoval of moisture and chimney through which air stream passes across the dryer. Evaluation of the dryer showed a raised\r\ntemperature of about 47?? attainable in the drying chamber. The dryer temperature and drying rate was found to be higher\r\nthan the natural open sun drying method. The dryer was able to reduce moisture content of tomato from initial moisture\r\ncontent of 94% wet basis to 4% in three days with effective drying time of 24 h, efficiency of 64%, air mass flow rate of\r\n0.025 kg s-1 and drying rate of 0.03906 kg h-1. The results showed a considerable advantage of solar dryer over the traditional\r\nopen sun drying method in term of drying rate and less risk for spoilage.
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