Research Article
Prediction and Analysis of Engine Friction Power of a Diesel Engine Influenced by Engine Speed, Load, and Lubricant Viscosity
Table 4
Full factorial design of experiments comprising variables speed, load, oil viscosity, and response variable friction power (FP) in kW.
| Run order | Speed (rpm) | Load (Nm) | Viscosity (cSt) | FP (kW) |
| 1 | 2000 | 200 | 14.5 | 10.95 | 2 | 2000 | 50 | 11 | 10.04 | 3 | 1000 | 350 | 11 | 2.58 | 4 | 2000 | 350 | 14.5 | 2.67 | 5 | 1000 | 200 | 14.5 | 2.28 | 6 | 1000 | 50 | 14.5 | 1.77 | 7 | 2000 | 200 | 11 | 7.02 | 8 | 1000 | 50 | 11 | 2.1 | 9 | 2000 | 350 | 11 | 1.33 | 10 | 1000 | 50 | 11 | 2.52 | 11 | 1000 | 350 | 14.5 | 2.22 | 12 | 2000 | 50 | 14.5 | 12.17 | 13 | 2000 | 50 | 14.5 | 12.78 | 14 | 2000 | 350 | 14.5 | 4.84 | 15 | 1000 | 200 | 11 | 1.91 | 16 | 1000 | 200 | 11 | 2.03 | 17 | 1000 | 200 | 14.5 | 2.53 | 18 | 2000 | 200 | 14.5 | 10.12 | 19 | 1000 | 50 | 14.5 | 1.92 | 20 | 2000 | 350 | 11 | 2.83 | 21 | 1000 | 350 | 14.5 | 2.85 | 22 | 2000 | 50 | 11 | 9.95 | 23 | 1000 | 350 | 11 | 2.58 | 24 | 2000 | 200 | 11 | 9.78 |
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