| Popis: |
The main aim of the present study is to develop, fabricate and evaluate a cutting machine for turnip fingers to be used in small and medium production units locally available materials like stainless steel and mild steel were used in fabrication. The machine productivity increased from 246.249 to 452.356, 280.026 to 421.881 and 290.427 to 434.313 kg h-1 with increased turnip size from small to large, slice thickness from 9 to 12 mm and cutting speed from 250 to 550 rpm, respectively. The uniformity index increases with increasing turnip size, slice thickness and cutting speed. The cutting efficiency increased from 95.361 to 96.674 and 95.130 to 96.864 % with increased turnip size from small to large, slice thickness from 9 to 12 mm, respectively, while it decreased from 97.524 to 94.716 % with increased cutting speed from 250 to 550 rpm, respectively. The specific energy consumption decreased from 3.100 to 1.680, 2.821 to 1.901 and 2.870 to 1.803 W.h kg-1 with increased turnip size from small to large, slice thickness from 9 to 12 mm and cutting speed from 250 to 550 rpm, respectively. The total cost of slicing machine decreased from 0.081 to 0.043, 0.074 to 0.049 and 0.073 to 0.048 LE kg-1 with increased turnip size from small to large, slice thickness from 9 to 12 mm and cutting speed from 250 to 550 rpm, respectively. |
