Accepted manuscript
Multi-wavelength speciation of high-temperature 1-butene pyrolysis
Fuel (Guildford), Vol.244, pp.269-281
05/15/2019
Handle:
https://hdl.handle.net/2376/118457
Appears in Aviation Sustainability Center (ASCENT)
Abstract
Species time-history measurements provide important kinetics targets for the development and validation of detailed reaction models. Here, a multi-wavelength, multi-species laser absorption strategy is demonstrated that provides high-bandwidth species time-histories during 1-butene pyrolysis behind reflected shock waves. Measured shock tube absorbance traces at nine wavelengths were used to resolve nine species mole fractions in the pyrolysis of 5% 1-butene in argon at 1300 K, 1.8 atm. In addition to existing sensors for 1-butene, methane, ethylene, 1,3-butadiene, propene, allene, benzene, and cyclopentadiene, a new laser absorption sensor for ethane at 3.3519 µm was developed by measuring cross-sections of ethane and of expected major interferers. Additional measurements to complete a square absorption cross-section matrix were also performed that enabled the simultaneous solution of species mole fractions from absorbance time-histories under appropriate physical system constraints. Measured time-histories of the nine product species were also compared with existing flow-reactor-based kinetic mechanisms. The demonstrated method has further application potential in the speciation of larger, more complex fuels.
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Details
- Title
- Multi-wavelength speciation of high-temperature 1-butene pyrolysis
- Creators
- Nicolas H PinkowskiSéan J CassadyDavid F DavidsonRonald K Hanson
- Publication Details
- Fuel (Guildford), Vol.244, pp.269-281
- Academic Unit
- Aviation Sustainability Center (ASCENT); Alternative Jet Fuel
- Publisher
- Elsevier Ltd
- Grants
- 13-C-AFJE-SU-015, 17, Federal Aviation Administration (United States, Washington) - FAA
- Identifiers
- 99900567699901842
- Language
- English
- Resource Type
- Accepted manuscript