Table 6 Uncertainty of measuring variables.

From: Maximizing the combustion phenomenon with reduced emission of a compression ignition engine fulled with Dunaliella salina biodiesel and hydrogen blends

Measuring variables

Uncertainty (%)

BMEP

0.23

Load

0.32

Speed

0.10

EGT

0.11

BSFC

0.19

Fuel flow rate

0.68

Air flow rate

0.32

UBHC

0.18

CO

0.22

CO2

0.23

NOx

0.22

Smoke opacity

0.54

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