Hydrocarbon absorption coefficients at the 3.39-microm He-Ne laser transition.
In view of the application of light-extinction techniques for fuel-specie-concentration measurements in combustion systems, the vapor-absorption coefficient of several hydrocarbon species at the 3.39-microm He-Ne laser transition has been measured. The hydrocarbon species include paraffins, olefins, and aromatics. Result are included for total pressure over the range of approximately 200-650 Torr at 295 K with air as the buffer gas. Observations are made regarding the difference in the absorption coefficient within and between hydrocarbon classifications.
Drallmeier
James A
JA
Department of Mechanical and Aerospace Engineering at the University of Missouri-Rolla, 1870 Miner Circle, Rolla, Missouri 65409-0050, USA. drallmei@umr.edu