Intracavity laser absorption spectroscopy study of HNO in hydrocarbon flames doped with N2O

V. A. Lozovsky, S. Cheskis

Research output: Contribution to journalArticlepeer-review

Abstract

Intracavity laser absorption spectroscopy is used to monitor HNO and NO2 spectra in hydrocarbon/air flames doped with nitrous oxide, N2O, at low mole fraction. Methane flames of different equivalence ratios are used. High-resolution spectra of HNO are recorded near 642-644 nm. Spectra are also recorded near 618 nm where the absorption cross-section is known from the literature. The HNO spectrum is observed only in the rich and stoichiometric flames, with absorption being almost independent of location in the flame. In the lean flames, the HNO spectrum disappears and the intense NO2 spectrum forms instead.

Original languageEnglish
Pages (from-to)508-514
Number of pages7
JournalChemical Physics Letters
Volume332
Issue number5-6
DOIs
StatePublished - 29 Dec 2000

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