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Influence of the Pressure on Spatial and Temporal Resolved Plasma Physical Parameters of a TCI-Ignition System

Michler, Tobias ORCID iD icon 1; Toedter, Olaf ORCID iD icon 1; Koch, Thomas 1
1 Institut für Kolbenmaschinen (IFKM), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

In this work, the influence of pressure on the electrical parameters of a standard automotive ignition system and the characteristic spectra of the ignition spark were shown. The spectrum of the breakdown shows the strongest change, from a relatively discrete N2 band spec-trum to a bright continuum spectrum with intense NII line radiation in it. In the arc discharge, the metal lines from the electrode material dominate the shape of the spectrum. These lines can be used to de-termine the excitation temperature and to estimate the intensity with which the electrode material is released by the thermionic effects of the discharge. Lastly, the shape of the glow discharges is not affected by the pressure, only their intensity decreases. Because of the differ-ences in the spectra, several methods are needed to determine differ-ent temperatures or other plasma characteristics.


Postprint §
DOI: 10.5445/IR/1000150759
Veröffentlicht am 18.10.2023
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Kolbenmaschinen (IFKM)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2022
Sprache Englisch
Identifikator ISBN: 978-3-8169-3544-5
KITopen-ID: 1000150759
Erschienen in International Conference on Ignition Systems for Gasoline Engines – International Conference on Knocking in Gasoline Engines. Ed.: M. Sens
Veranstaltung 5th International Conference on Ignition Systems for Gasoline Engines (2022), Berlin, Deutschland, 12.09.2022 – 14.09.2022
Auflage 1.
Verlag Narr Francke Attempto Verlag
Seiten 63-79
Vorab online veröffentlicht am 17.10.2022
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