Innermotorische  optische Rußuntersuchungen bei Ottomotoren

Maliha, Malki; Kraljevic, Ivica; Wytrykus, Frank; Bertola, Andrea

doi:10.1007/s35146-019-0156-5

Cited by 1 publication

(1 citation statement)

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“…When using laser systems, a complex setup has to be installed, and there is a need to modify the engine, e.g., glass windows in the piston or in the cylinder walls are necessary [ 17 , 18 , 19 , 20 , 21 ]. Previous studies show that the spark plug bore of SI-engines or the glow plug bore of diesel engines can be used to allow in-cylinder optical access without engine modifications [ 22 , 23 , 24 , 25 ]. Using this approach to collect spectrally resolved in-cylinder soot emissions allows global diesel engine temperature measurements.…”

Section: Introductionmentioning

confidence: 99%

Emission Spectroscopy-Based Sensor System to Correlate the In-Cylinder Combustion Temperature of a Diesel Engine to NOx Emissions

Wultschner,

Schmitz,

Révidat

et al. 2024

Sensors

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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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