TY - CONF
T1 - UV absorption of CO2 for temperature diagnostics of hydrocarbon combustion applications
AU - Jeffries, J. B.
AU - Schulz, C.
AU - Mattison, D. W.
AU - Oehlschlaeger, M. A.
AU - Bessler, W. G.
AU - Lee, T.
AU - Davidson, D. F.
AU - Hanson, R. K.
N1 - Funding Information:
Work at Stanford University was supported by the Air Force Office of Scientific Research, Aerospace Sciences Directorate with Julian Tishkoff as the technical monitor and by the Office of Naval Research with Gabriel Roy as technical monitor. The Division of International Programs at the National Science Foundation supports the Stanford collaboration via a cooperative research grant. The Heidelberg University colleagues (CS & WGB) were sponsored by DFG, DAAD, and BMBF.
PY - 2004
Y1 - 2004
N2 - The first use of UV absorption measurements to determine temperature was demonstrated using five different experimental examples to illustrate the utility in hydrocarbon combustion applications of this new temperature diagnostic strategy. Transmission measurements of cw laser light at 266 nm were used to determine time-resolved temperature in shock-heated CO2. Similar transmission measurements were used to infer time-resolved temperature behind a detonation wave in a pulse-detonation engine using absorption from equilibrium concentrations of the CO2 combustion product. The absorption of pulsed laser light near 226 nm was used to infer temperature in the burnt gases of a premixed high-pressure CH4 flame. Wavelength-resolved absorption of light from a broadband UV deuterium lamp was time-resolved with a kinetic spectrograph to acquire time-resolved absorption spectra illustrating the measurement of temperature in a system with changing temperature and CO2 mole fraction. Time-gated, spectrally resolved transmission of a deuterium lamp was used to derive temperature at specific crank angles in a piston engine. These examples demonstrate that temperature measurements based on UV optical absorption of CO2 have good potential for use in various hydrocarbon combustion applications. This is an abstract of a paper presented at the 30th International Symposium on Combustion (Chicago, IL 7/25-30/2004).
AB - The first use of UV absorption measurements to determine temperature was demonstrated using five different experimental examples to illustrate the utility in hydrocarbon combustion applications of this new temperature diagnostic strategy. Transmission measurements of cw laser light at 266 nm were used to determine time-resolved temperature in shock-heated CO2. Similar transmission measurements were used to infer time-resolved temperature behind a detonation wave in a pulse-detonation engine using absorption from equilibrium concentrations of the CO2 combustion product. The absorption of pulsed laser light near 226 nm was used to infer temperature in the burnt gases of a premixed high-pressure CH4 flame. Wavelength-resolved absorption of light from a broadband UV deuterium lamp was time-resolved with a kinetic spectrograph to acquire time-resolved absorption spectra illustrating the measurement of temperature in a system with changing temperature and CO2 mole fraction. Time-gated, spectrally resolved transmission of a deuterium lamp was used to derive temperature at specific crank angles in a piston engine. These examples demonstrate that temperature measurements based on UV optical absorption of CO2 have good potential for use in various hydrocarbon combustion applications. This is an abstract of a paper presented at the 30th International Symposium on Combustion (Chicago, IL 7/25-30/2004).
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M3 - Paper
AN - SCOPUS:10344236012
SP - 13
T2 - 30th International Symposium on Combustion, Abstracts of Symposium Papers
Y2 - 25 July 2004 through 30 July 2004
ER -