| The performance of a hammer mill fabricated in Uganda was evaluated and the optimal performance conditions were determined. The evaluation was done with screen hole diameters (S) of 1.5, 2.0, and 3.0 mm, hammer tip speeds (H) of 68.12, 81.81, 102.17 m s-1 and hammer thicknesses (T) of 4.0, 5.0, and 6.0 mm for determination of energy consumption and final particle size (GMD) using a modified central composite (CCD) split-plot experimental design. Screen hole diameter and hammer thickness had significant effects on energy consumption (p<0.05). S and H had a significant effect on GMD but with T did not have a significant effect on GMD. S and H had significant effects on both GMD and energy consumption. Quadratic effect of T, interaction effects of TH and... |
