ASME Digital Collection

Fig. 13

Effect of fuel, injection pressure, and intake-O2 concentration on NOx emissions (top row), and the relative increase in NOx emissions of T50 relative to MD (bottom row). NOx emissions for MD at both injection pressures are nearly identical and thus appear as a single trendline. The error bars represent the minimum and maximum average values on three separate optical-engine runs.

Effect of fuel, injection pressure, and intake-O₂ concentration on NO_x emissions (top row), and the relative increase in NO_x emissions of T50 relative to MD (bottom row). NO_x emissions for MD at both injection pressures are nearly identical and thus appear as a single trendline. The error bars represent the minimum and maximum average values on three separate optical-engine runs.

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