Table 3.
ANOVA summary for the full quadratic model for percentage yield of biodiesel from unheated and heated canola oils
| Source | BD_100 | BD_190 | BD_240 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| df | Sum of Squares | df | Mean Square | F-value | p-value | df | Sum of Squares | Mean Square | F-value | p-value | df | Sum of Squares | Mean Square | F-value | p-value | ||||
| Model | 9 | 2730.27 | 9 | 303.36 | 68.74 | < 0.0001 | significant | 9 | 2163.74 | 240.42 | 15.46 | < 0.0001 | significant | 3 | 191.16 | 63.72 | 3.29 | 0.0478 | significant |
| A-Methanol : Oil Molar Ratio | 1 | 112.68 | 1 | 112.68 | 25.53 | 0.0005 | 1 | 180.47 | 180.47 | 11.61 | 0.0067 | 1 | 90.51 | 90.51 | 4.68 | 0.0461 | |||
| B–Catalyst Concentration | 1 | 1634.50 | 1 | 1634.50 | 370.34 | < 0.0001 | 1 | 1591.87 | 1591.87 | 102.39 | < 0.0001 | 1 | 49.02 | 49.02 | 2.53 | 0.1311 | |||
| C-Reaction Time | 1 | 36.91 | 1 | 36.91 | 8.36 | 0.0161 | 1 | 4.718E-06 | 4.718E-06 | 3.035E-07 | 0.9996 | 1 | 51.50 | 51.50 | 2.66 | 0.1224 | |||
| AB | 1 | 0.1019 | 1 | 0.1019 | 0.0231 | 0.8822 | 1 | 0.4837 | 0.4837 | 0.0311 | 0.8635 | ||||||||
| AC | 1 | 13.08 | 1 | 13.08 | 2.96 | 0.1159 | 1 | 26.66 | 26.66 | 1.71 | 0.2197 | ||||||||
| BC | 1 | 25.05 | 1 | 25.05 | 5.68 | 0.0384 | 1 | 14.58 | 14.58 | 0.9378 | 0.3557 | ||||||||
| A2 | 1 | 238.58 | 1 | 238.58 | 54.06 | < 0.0001 | 1 | 15.75 | 15.75 | 1.01 | 0.3379 | ||||||||
| B2 | 1 | 503.25 | 1 | 503.25 | 114.03 | < 0.0001 | 1 | 210.27 | 210.27 | 13.52 | 0.0043 | ||||||||
| C2 | 1 | 8.08 | 1 | 8.08 | 1.83 | 0.2058 | 1 | 8.92 | 8.92 | 0.5734 | 0.4664 | ||||||||
| Residual | 10 | 44.13 | 10 | 4.41 | 10 | 155.47 | 15.55 | 16 | 309.74 | 19.36 | |||||||||
| Lack of Fit | 5 | 41.10 | 5 | 8.22 | 13.55 | 0.0062 | significant | 5 | 153.19 | 30.64 | 66.97 | 0.0001 | significant | 11 | 217.87 | 19.81 | 1.08 | 0.5009 | not significant |
| Pure Error | 5 | 3.03 | 5 | 0.6069 | 5 | 2.29 | 0.4575 | 5 | 91.87 | 18.37 | |||||||||
| Cor Total | 19 | 2774.41 | 19 | 19 | 2319.21 | 19 | 500.90 | ||||||||||||