LIF measurements of atomic arsenic in hydrogen and methane diffusion flames

Yanda Zhang, Youngbin Yoon, Peter B. Kelly, Ian M. Kennedy

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Laser-induced fluorescence (LIF) was used to detect atomic arsenic in hydrogen and methane diffusion flames. Elemental arsenic was excited at 197.2 nm (4p)3 4S3/2→(4p)2 (5s) 4P1/2 by mixing the fourth harmonic of a YAG laser (266 nm) and a dye laser (760 nm). The fluorescence was detected at 249.3 nm (4p)2 (5s) 4P1/2→(4p)3 2D3/2. In nitrogen-diluted methane flames, arsenic LIF was contaminated by fluorescence from polyaromatic hydrocarbons. Atomic arsenic was mainly found in the low-temperature, fuel-rich region and was quickly oxidized at high temperatures under both fuel-rich and fuel-lean conditions. The results were consistent with equilibrium calculations.

Original languageEnglish (US)
Pages (from-to)1777-1783
Number of pages7
JournalSymposium (International) on Combustion
Volume2
StatePublished - 1998

Fingerprint

diffusion flames
Methane
Arsenic
arsenic
laser induced fluorescence
Hydrogen
methane
Fluorescence
Lasers
hydrogen
fluorescence
Dye lasers
Hydrocarbons
dye lasers
YAG lasers
flames
Nitrogen
hydrocarbons
harmonics
nitrogen

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fluid Flow and Transfer Processes
  • Physical and Theoretical Chemistry
  • Energy Engineering and Power Technology
  • Fuel Technology
  • Mechanical Engineering

Cite this

Zhang, Y., Yoon, Y., Kelly, P. B., & Kennedy, I. M. (1998). LIF measurements of atomic arsenic in hydrogen and methane diffusion flames. Symposium (International) on Combustion, 2, 1777-1783.

LIF measurements of atomic arsenic in hydrogen and methane diffusion flames. / Zhang, Yanda; Yoon, Youngbin; Kelly, Peter B.; Kennedy, Ian M.

In: Symposium (International) on Combustion, Vol. 2, 1998, p. 1777-1783.

Research output: Contribution to journalArticle

Zhang, Y, Yoon, Y, Kelly, PB & Kennedy, IM 1998, 'LIF measurements of atomic arsenic in hydrogen and methane diffusion flames', Symposium (International) on Combustion, vol. 2, pp. 1777-1783.
Zhang, Yanda ; Yoon, Youngbin ; Kelly, Peter B. ; Kennedy, Ian M. / LIF measurements of atomic arsenic in hydrogen and methane diffusion flames. In: Symposium (International) on Combustion. 1998 ; Vol. 2. pp. 1777-1783.
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