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Comparative Assessment Of Different Ultra-Low Nox Measurement Instruments For Heavy-Duty Diesel Engines, Diego Bernabe Mejia
Comparative Assessment Of Different Ultra-Low Nox Measurement Instruments For Heavy-Duty Diesel Engines, Diego Bernabe Mejia
Graduate Theses, Dissertations, and Problem Reports
Constant Volume Sampling (CVS) systems are an approved method for emission testing as stated in CFR Title 40 Part 1065 Engine Emission Testing Program. For future near zero emission vehicles, the emission measurement equipment must verify the results with the same accuracy as the limits in the past. The most critical values are the limitations for THC, NOx and particulate matter.
The objective of this study was aimed at identifying challenges associated with measuring system-out emissions at proposed ultra-low NOx (ULNOx) levels - 0.02 (g/bhp-hr) and system robustness. The study compared a variety of existing instrument …