Micro-combustion of gaseous fuels in the FREI regime
Document Type
Conference Proceeding
Publication Date
1-1-2017
Abstract
The auto-ignition and extinction behavior of gaseous fuels is investigated experimentally for flames with repetitive extinction and ignition (FREI) in a millimeter-scale quartz tube. The experimental approach has the potential to evaluate key fuel properties from very small samples by establishing a link between chemical kinetics and FREI dynamics. The ability to measure fuel quality from a small sample would accelerate the search for new bio-derived fuels and enable co-optimization of existing fuels and engines. Toward the goal of producing a small sample, high throughput fuel tester, this paper demonstrates the ability to quantify FREI behavior using low-speed imaging. Thorough measurements are made to assess measurement errors. Fuel-specific FREI ignition and extinction dynamics are investigated for five stoichiometric gaseous fuel/air mixtures (methane, ethane, ethylene, propane and dimethyl-ether), where experimental results clearly illustrate shifts in characteristic ignition and extinction events.
Publication Source (Journal or Book title)
10th U.S. National Combustion Meeting
Recommended Citation
Schoegl, I., Sharma, P., & McNenly, M. (2017). Micro-combustion of gaseous fuels in the FREI regime. 10th U.S. National Combustion Meeting, 2017-April Retrieved from https://repository.lsu.edu/mechanical_engineering_pubs/2167