Table 2 Interaction effects between engine load percentage and fuel blends percentage on power take-off speed, power take-off power, power take-off torque, engine speed, brake power, brake specific fuel consumption, brake thermal efficiency, fuel consumption, brake mean effective pressure, O2 percentage, CO2 percentage, CO, NO, and SO2.
Engine load (%) | Biodiesel blends (%) | PTO speed (rpm) | PTO power (kW) | PTO torque (Nm) | Engine speed (rpm) | Brake power (kW) | Brake specific fuel consumption (BSFC) | Brake thermal efficiency (BTE) | Fuel cons (kg/h) | Brake means effective pressure (kPa) | O2 (%) | CO2 (%) | CO (ppm) | NO (ppm) | SO2 (ppm) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Treatments | |||||||||||||||
0 | 0 | 699.2 | 7.2 | 98.5 | 2854.8 | 10.3 | 1.04 | 8.3 | 10.7 | 92.8 | 15.30 | 4.20 | 99.00 | 281.0 | 4.00 |
5 | 687.0 | 7.1 | 98.6 | 2805.0 | 10.1 | 1.01 | 8.5 | 10.3 | 92.9 | 15.20 | 4.18 | 91.00 | 274.0 | 3.00 | |
20 | 672.0 | 6.9 | 98.7 | 2743.8 | 9.9 | 1.00 | 8.5 | 9.9 | 92.9 | 15.28 | 4.20 | 85.00 | 269.0 | 1.00 | |
100 | 659.6 | 6.8 | 98.7 | 2692.9 | 9.7 | 1.00 | 8.5 | 9.8 | 93.0 | 15.30 | 4.20 | 69.00 | 266.0 | 0.00 | |
25 | 0 | 646.0 | 27.2 | 401.9 | 2637.6 | 38.8 | 0.35 | 24.3 | 13.7 | 378.6 | 10.98 | 7.39 | 54.75 | 449.5 | 11.63 |
5 | 635.5 | 25.9 | 389.2 | 2594.5 | 36.9 | 0.40 | 21.5 | 14.7 | 366.6 | 10.98 | 7.34 | 54.13 | 450.3 | 10.13 | |
20 | 619.3 | 23.8 | 367.7 | 2528.7 | 34.1 | 0.44 | 19.3 | 15.1 | 346.4 | 11.03 | 7.34 | 60.25 | 452.3 | 7.50 | |
100 | 612.5 | 22.8 | 355.7 | 2500.9 | 32.6 | 0.49 | 17.5 | 15.9 | 335.1 | 11.01 | 7.41 | 81.00 | 451.0 | 0.00 | |
50 | 0 | 523.4 | 32.3 | 590.7 | 2137.2 | 46.2 | 0.32 | 26.6 | 14.9 | 556.1 | 7.70 | 9.80 | 85.00 | 539.0 | 17.00 |
5 | 515.4 | 30.8 | 570.3 | 2104.4 | 43.9 | 0.37 | 2.9 | 16.4 | 537.3 | 7.90 | 9.70 | 85.00 | 545.0 | 15.00 | |
20 | 501.2 | 28.3 | 540.2 | 2046.4 | 40.5 | 0.42 | 20.3 | 17.1 | 508.9 | 8.00 | 9.70 | 87.00 | 551.0 | 12.00 | |
100 | 498.3 | 27.1 | 520.6 | 2034.4 | 38.8 | 0.47 | 18.2 | 18.2 | 490.2 | 8.20 | 9.50 | 88.00 | 560.0 | 0.00 | |
75 | 0 | 332.0 | 23.1 | 663.9 | 1355.7 | 32.9 | 0.43 | 19.7 | 14.3 | 625.4 | 5.48 | 11.44 | 189.75 | 549.5 | 20.13 |
5 | 327.2 | 21.9 | 640.9 | 1335.7 | 31.4 | 0.49 | 17.4 | 15.4 | 603.8 | 5.98 | 11.25 | 183.63 | 558.3 | 17.63 | |
20 | 317.2 | 20.4 | 613.3 | 1295.7 | 29.1 | 0.55 | 15.7 | 15.9 | 577.7 | 6.19 | 11.29 | 165.25 | 565.3 | 14.50 | |
100 | 316.8 | 19.7 | 593.3 | 1293.6 | 28.1 | 0.59 | 14.4 | 16.7 | 558.9 | 6.86 | 10.46 | 90.00 | 593.0 | 0.00 | |
100 | 0 | 70.7 | 4.6 | 622.8 | 288.7 | 6.6 | 1.81 | 4.7 | 11.9 | 588.0 | 4.30 | 12.30 | 369.00 | 481.0 | 21.00 |
5 | 70.1 | 4.4 | 602.3 | 286.2 | 6.3 | 1.85 | 4.6 | 11.7 | 567.4 | 5.20 | 12.00 | 350.00 | 490.0 | 18.00 | |
20 | 68.2 | 4.2 | 590.4 | 278.5 | 6.0 | 1.92 | 4.5 | 11.5 | 556.2 | 5.60 | 12.10 | 295.00 | 495.0 | 15.00 | |
100 | 67.8 | 4.1 | 573.9 | 276.9 | 5.8 | 1.95 | 4.4 | 11.3 | 540.9 | 7.00 | 10.30 | 87.00 | 550.0 | 0.00 | |
LSD at 0.05 | 9.7 | 0.3 | 6.6 | 24.3 | 0.5 | 0.01 | 0.2 | 0.1 | 9.4 | 0.07 | 0.12 | 1.66 | 4.4 | 0.13 | |
