Open Access
Table 8
ANOVA method for engine VN.
| Source | Vibration (m/s2) |
Noise (dB[A]) |
||||
|---|---|---|---|---|---|---|
| Sum of squares | F-value | P-value | Sum of squares | F-value | P-value | |
| Model | 741.685 | 56.83 | 0.000 | 75.2313 | 54.81 | 0.000 |
| Linear | 725.645 | 166.81 | 0.000 | 55.2075 | 120.67 | 0.000 |
| A-CNG blend | 11.045 | 7.62 | 0.025 | 0.3613 | 2.37 | 0.168 |
| B-biodiesel ratio (%) | 0.180 | 0.12 | 0.735 | 0.2450 | 1.61 | 0.246 |
| C-engine speed (rpm) | 714.420 | 492.70 | 0.000 | 54.6012 | 358.04 | 0.000 |
| Square | 8.253 | 1.90 | 0.218 | 20.0013 | 43.72 | 0.000 |
| A2 | 6.711 | 4.63 | 0.068 | 3.1322 | 20.54 | 0.003 |
| B2 | 1.711 | 1.18 | 0.313 | 1.4533 | 9.53 | 0.018 |
| C2 | 0.111 | 0.08 | 0.790 | 13.8322 | 90.70 | 0.000 |
| 2-way interaction | 7.788 | 1.79 | 0.237 | 0.0225 | 0.05 | 0.984 |
| AB | 0.563 | 0.39 | 0.553 | 0.0100 | 0.07 | 0.805 |
| AC | 0.203 | 0.14 | 0.720 | 0.0025 | 0.02 | 0.902 |
| BC | 7.023 | 4.84 | 0.064 | 0.0100 | 0.07 | 0.805 |
| Error | 10.150 | 1.0675 | ||||
| Total | 751.835 | 76.2988 | ||||
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