Publications

Multi-species time-history measurements during n-dodecane oxidation behind reflected shock waves

Multi-species time-history measurements during n-dodecane oxidation behind reflected shock waves

D. F. Davidson*, Z. Hong, G. L. Pilla, A. Farooq, R. D. Cook, R. K. Hanson

Proceedings of the Combustion Institute 33, 151 – 157, (2011)

D. F. Davidson*, Z. Hong, G. L. Pilla, A. Farooq, R. D. Cook, R. K. Hanson
Shock tube, Laser absorption, n-Dodecane, Reaction mechanisms
2011

Concentration time-histories were measured behind reflected shock waves during n-dodecane oxidation for five species: n-dodecane, C2H4, OH, CO2, and H2O. Experiments were conducted at temperatures of 1300–1600 K and pressures near 2 atm using mixtures of 400 ppm n-dodecane and 7400 ppm oxygen (ϕ = 1) in argon. n-Dodecane and ethylene were monitored using IR gas laser absorption at 3.39 and 10.53 μm, respectively; OH was monitored using UV laser absorption at 306.5 nm; and CO2 and H2O were monitored using tunable IR diode laser absorption at 2.7 and 2.5 μm, respectively. These time-histories provide kinetic targets to test and refine large reaction mechanisms for n-dodecane and demonstrate the potential of this type of data for validation of large reaction mechanisms. Comparisons are made with the predictions of two recently developed large-alkane reaction mechanisms, and the need for improved rate measurements of higher alkene reactions is discussed.

DOI: 10.1016/j.proci.2010.05.104