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Laser-induced breakdown spectroscopy in a partially premixed turbulent jet flame

In English

Författare

Summary, in English

A new approach for studying mixing and combustion phenomena in turbulent partially premixed flames using laser-induced breakdown spectroscopy (LIBS) is demonstrated. Setting the laser pulse energy just above the breakdown threshold in the cold gas allows statistical data to be obtained concerning the probability of finding cold or hot gas inside the measurement volume. Moreover, a compositional analysis utilizing the LIBS spectra allows the mixing of the different cold gas flows to be studied. A proof-of-concept experiment is carried out in a turbulent jet flame stabilized on a coaxial burner. The LIBS data agree well with results obtained by planar laser-induced fluorescence of OH radicals.

Publiceringsår

2013

Språk

Engelska

Publikation/Tidskrift/Serie

Measurement Science & Technology

Volym

24

Issue

7

Dokumenttyp

Artikel i tidskrift

Förlag

IOP Publishing

Ämne

  • Atom and Molecular Physics and Optics

Nyckelord

  • laser-induced breakdown spectroscopy
  • mixing
  • flame surface density
  • statistical analysis

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0957-0233