Open Access
Table 9
Optimisation of test setup and desirability of engine responses.
| Response | Goal | Lower | Upper | Weight | Importance | Desirability |
|---|---|---|---|---|---|---|
| CNG addition (L/min) | In range | 5 | 15 | 1 | 1 | 1 |
| Biodiesel ratio (%) | In range | 0 | 40 | 1 | 1 | 1 |
| Engine speed (rpm) | In range | 1500 | 2100 | 1 | 1 | 1 |
| NOx (ppm) | Minimum | 64.00 | 153.00 | 1 | 1 | 0.66548 |
| CO (ppm) | Minimum | 312.00 | 765.00 | 1 | 1 | 0.72174 |
| CO2 (%) | Minimum | 1.28 | 2.30 | 1 | 1 | 0.81409 |
| O2 (%) | Minimum | 17.08 | 19.15 | 1 | 1 | 0.26804 |
| Vibration (m/s2) | Minimum | 34.60 | 57.40 | 1 | 1 | 0.88730 |
| Noise (dB[A]) | Minimum | 91.20 | 97.40 | 1 | 1 | 0.97670 |
| Combined | – | – | – | – | – | 0.6710 |
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