Experimental Analysis for Nitrogen Oxide Reduction in a Diesel Engine by the Hydrogen-Assisted Selective Catalytic Reduction Technique

Table 2

Emission measurement range of the AVL gas analyzer (DIGAS 444N model).

Emission	Measurement range	Resolution
CO	0–15% vol	0.001% vol
HC	0–20,000 ppm vol	1 ppm/10 ppm (0–2000 ppm)/(>2000 ppm)
CO2	0–20% vol	0.1% vol
O2	0–25% vol	0.01% vol
NOX	0–6000 ppm vol	1 ppm vol