From Fig 4 the effect of tilt angle on whole grain
separation (EG) was constant at 85% for tilt angle
of3o and 4o and increased to a peak of 87% at 5o and
experienced a sharp gradient of decrease to a value of 76 at 6 o then gentle gradient 8o to a value of 70 %.
This implies a decrease in efficiency as tilt angle
increases; a quadratic equation of R2 of 0.773
describes the trend of the machine performance.
Also for the EB initially decreases gradually as the tilt
angle increase from 3 to 5o and then had the peak
separation of 86% at 6o before a steep reduction to
69% at 8o tilt angle. A polynomial equation of R2 of
0.523 described the separation