Citation Link: https://doi.org/10.3390/s24082459
Emission Spectroscopy-Based Sensor System to Correlate the In-Cylinder Combustion Temperature of a Diesel Engine to NOx Emissions
Publication Type
Article
Subjects
NOx
Combustion
Diesel engine
Diesel fuel
Cylinder
Environmental science
Automotive engineering
Spectroscopy
Diesel exhaust
Analytical Chemistry (journal)
Chemistry
Materials science
Environmental chemistry
Engineering
Mechanical engineering
Physics
Organic chemistry
Date Issued
2024
Abstract
Due to a rising importance of the reduction of pollutant, produced by conventional energy technologies, the knowledge of pollutant forming processes during a combustion is of great interest. In this study the in-cylinder temperature, of a near series diesel engine, is examined with a minimal invasive emission spectroscopy sensor. The soot, nearly a black body radiator, emits light, which is spectrally detected and evaluated with a modified function of Planck’s law. The results show a good correlation between the determined temperatures and the NOx concentration, measured in the exhaust gas of the engine, during a variety of engine operating points. A standard deviation between 25 K and 49 K was obtained for the in-cylinder temperature measurements.
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