Table 2 Accuracy and uncertainty of measured parameters
From: Piston bowl shape and biodiesel fuel effects on combustion and emission of diesel engines
Measured parameter | Accuracy | Uncertainty (%) |
|---|---|---|
Air flow rate | ± 0.2 mm H2O | 1.64 |
Diesel fuel flow rate | ± 8.27 × 10−3 kg/h | 1.51 |
Engine brake power | ± 0.15 kW | 2.9 |
In-cylinder pressure | ± 2% | 4.92 |
Crankshaft position | ± 1% | 3.9 |
NO | ± 5 ppm | 5.88 |
CO | ± 1% | 3.28 |
HC | ± 3 ppm | 3.08 |