Digital imaging of reaction zones in hydrocarbon--air flames using planar laser-induced fluorescence of CH and C/sub 2/

Journal Article · Sat Mar 01 00:00:00 EST 1986 · Opt. Lett.; (United States)

DOI:https://doi.org/10.1364/OL.11.000126· OSTI ID:5954251

Allen, M G; Howe, R D; Hanson, R K

A method for instantaneously imaging the position of the reaction zone in hydrocarbon--air flames is described. The technique is based on planar laser-induced fluorescence of the combustion radicals CH and C/sub 2/. Using a Nd:YAG-pumped dye-laser illumination source, fluorescence images were recorded with an image-intensified 100 x 100 photodiode array camera. Results are presented for acetylene--air and ethylene--air gaseous flames as well as for a heptane--air spray flame. Details of excitation--detection strategies and fluorescence yields are discussed.

• Research Organization: High Temperature Gasdynamics Laboratory, Department of Mechanical Engineering, Stanford University, Stanford, California 94305
• OSTI ID: 5954251
• Journal Information: Opt. Lett.; (United States), Vol. 11:3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACETYLENE
COMBUSTION PROPERTIES
EMISSION SPECTROSCOPY
ETHYLENE
HEPTANE
FLAMES
FLUORESCENCE
HYDROCARBONS
IMAGES
LASER SPECTROSCOPY
ALKANES
ALKENES
ALKYNES
LUMINESCENCE
ORGANIC COMPOUNDS
SPECTROSCOPY
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry