Open Access
Table 3
Plan of experimentation for the optimization study and the results of output variables.
| S. No. | Load (N) | % of Curcuma longa in the blend | Nano additive | SFC (kg/kW-h) | vol/vol.% of CO emission | vol/vol.% of CO2 emission | NOX emission in ppm | HC emission in ppm | EGT in deg °C | BTE (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 30 | 10 | NCOP | 0.650 | 0.0621 | 0.412 | 444.8 | 26.0 | 180.03 | 12.93 |
| 2. | 30 | 10 | NESP | 0.640 | 0.0620 | 0.403 | 454.0 | 25.0 | 167.17 | 13.01 |
| 3. | 30 | 20 | NCOP | 0.630 | 0.0576 | 0.420 | 481.6 | 23.2 | 177.81 | 13.10 |
| 4. | 30 | 20 | NESP | 0.620 | 0.0570 | 0.410 | 493.0 | 23.0 | 186.70 | 13.46 |
| 5. | 30 | 30 | NCOP | 0.600 | 0.0472 | 0.416 | 512.0 | 23.0 | 169.03 | 13.92 |
| 6. | 30 | 30 | NESP | 0.580 | 0.0450 | 0.410 | 523.0 | 22.6 | 183.21 | 14.49 |
| 7. | 60 | 10 | NCOP | 0.440 | 0.0592 | 0.514 | 542.6 | 23.0 | 225.89 | 19.91 |
| 8. | 60 | 10 | NESP | 0.440 | 0.0580 | 0.521 | 555.0 | 22.8 | 221.07 | 18.66 |
| 9. | 60 | 20 | NCOP | 0.430 | 0.0468 | 0.460 | 575.2 | 21.4 | 214.38 | 19.25 |
| 10. | 60 | 20 | NESP | 0.430 | 0.0450 | 0.452 | 583.0 | 19.8 | 221.14 | 19.47 |
| 11. | 60 | 30 | NCOP | 0.390 | 0.0346 | 0.452 | 601.0 | 18.0 | 215.50 | 21.25 |
| 12. | 60 | 30 | NESP | 0.390 | 0.0340 | 0.440 | 623.0 | 17.5 | 222.66 | 21.29 |
| 13. | 90 | 10 | NCOP | 0.345 | 0.0528 | 0.616 | 640.4 | 20.0 | 268.04 | 24.38 |
| 14. | 90 | 10 | NESP | 0.350 | 0.0530 | 0.611 | 657.0 | 18.9 | 269.71 | 23.48 |
| 15. | 90 | 20 | NCOP | 0.340 | 0.0432 | 0.550 | 668.8 | 18.8 | 264.27 | 23.32 |
| 16. | 90 | 20 | NESP | 0.340 | 0.0430 | 0.550 | 686.0 | 17.8 | 264.40 | 23.19 |
| 17. | 90 | 30 | NCOP | 0.320 | 0.0304 | 0.488 | 705.0 | 16.0 | 268.01 | 25.84 |
| 18. | 90 | 30 | NESP | 0.320 | 0.0300 | 0.477 | 734.0 | 14.0 | 267.52 | 25.74 |
| 19. | 120 | 10 | NCOP | 0.320 | 0.0504 | 0.718 | 738.2 | 17.0 | 320.93 | 26.46 |
| 20. | 120 | 10 | NESP | 0.320 | 0.0500 | 0.699 | 740.0 | 16.6 | 326.22 | 26.20 |
| 21. | 120 | 20 | NCOP | 0.320 | 0.0396 | 0.640 | 762.4 | 16.9 | 321.95 | 26.09 |
| 22. | 120 | 20 | NESP | 0.300 | 0.0400 | 0.633 | 777.0 | 16.5 | 317.44 | 27.37 |
| 23. | 120 | 30 | NCOP | 0.290 | 0.0262 | 0.524 | 868.0 | 12.0 | 322.42 | 28.93 |
| 24. | 120 | 30 | NESP | 0.290 | 0.0250 | 0.509 | 879.0 | 13.0 | 320.77 | 28.84 |
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