การอบแห้งกากมันสำปะหลังด้วยเครื่องอบแห้งแบบลูกกลิ้งหมุน
เทวรัตน์ ตรีอำนรรคเกียรติศักดิ์ ใจโตวีรชัยอาจหาญ และ กระวี ตรีอำนรรค
วารสารวิทยาศาสตร์เกษตร 43 (3พิเศษ):135-138. 2555.
2555
บทคัดย่อ
The objective of this research was to evaluate the performance of cassava-pulp drying using a twin rotary drum dryer. The drying factors consisted of drying drum temperature of 100 °C, 120 °C and 140 °C, drum speed of 0.5, 0.6 and 0.7 rpm, and the spacing between drums of 0.15, 0.3 and 0.5 mm. The average initial moisture content of cassava-pulp was 81.50 %wb. It was found that drum temperature had great effect on moisture (reduction) at drum temperature of 140 °C could reduce the final moisture content of cassava-pulp to 4.30 %wb and the problem of sticky on the drum were not happen. At the drying temperature of 100 °C, the final moisture of cassava-pulp were higher than safety limit to safe storage and it has problem of sticky on the drum. It was also found that the final moisture content of cassava-pulp at the same temperature increased with an increased of the drum speed. The optimum conditions for drying cassava-pulp was found at drying drum temperature 140 °C, rotating speed 0.7 rpm and the drum spacing of 0.5 mm had the highest drying capacity.