Table 4.
Independent variables | Coded values | Actual values |
---|---|---|
Barrel temperature (°C) | − 0.236 to 0.216 | 67.64 to 72.16 |
Feed moisture content (% w.b.) | − 0.264 to 0.208 | 29.34 to 30.52 |
Feeder speed (rpm) | − 0.050 to 0.460 | 11.90 to 12.92 |
Screw speed:feeder speed | − 0.380 to 0.230 | 9.62 to 10.23 |