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Detection of Flame Radicals Using Light-Emitting Diodes

In English

Författare

Summary, in English

Lasers are common tools in the field of combustion diagnostics In some respects, however, they have disadvantages Therefore, there is a need for new light sources delivering radiation in the required wavelength regions with high stability and reliability at low cost Light-emitting diodes (LED) in the near and mid infrared spectral region have proven their potential for spectroscopic applications in the past In the present work we demonstrate the feasibility of using ultraviolet LEDs for flame diagnostics For this purpose, OH and CH radicals are detected in premixed methane/air flames The LED emission is found to be stable after thermal equilibrium is reached This was the case after a warming up period in the order of minutes The spectral characteristics were stable during a 24 h test

Publiceringsår

2010

Språk

Engelska

Sidor

1330-1334

Publikation/Tidskrift/Serie

Applied Spectroscopy

Volym

64

Issue

12

Dokumenttyp

Artikel i tidskrift

Förlag

Society for Applied Spectroscopy

Ämne

  • Atom and Molecular Physics and Optics

Nyckelord

  • Flame radical detection
  • Ultraviolet
  • Light emitting diode
  • LED
  • Absorption spectroscopy

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1943-3530