Table 3 Uncertainty analysis of the main apparatus used in the parameter measurement
From: Effect of EGR coupled fuel injection parameters on combustion and emissions
Property | Resolution | Uncertainty |
|---|---|---|
Dynamometer(speed measurement) | 1 rpm | ± 0.3% |
Dynamometer(torque measurement) | 0.01 N⋅m | ± 0.2% |
Flow meter sensor Pressure transducer | 0.01 g 0.01 MPa | ± 0.3% ± 0.3% |
Gas analyzer CO measurement HC measurement NOx measurement | 0.01% 2 ppm 1 ppm | < 0.2% < 0.2% < 0.2% |
