Accepted manuscript
A streamlined approach to hybrid-chemistry modeling for a low cetane-number alternative jet fuel
Combustion and flame, Vol.208, pp.15-26
10/2019
Handle:
https://hdl.handle.net/2376/117795
Appears in Aviation Sustainability Center (ASCENT)
Abstract
The development of renewable, alternative jet fuels presents an exigent challenge to the aviation community. In this work, a streamlined methodology for building computationally efficient kinetic models of real fuels from shock tube experiments is developed and applied to a low cetane-number, broad-boiling alternative jet fuel (termed C-4). A multi-wavelength laser absorption spectroscopy technique was used to determine species time-histories during the high-temperature pyrolysis of C-4, and a batch gradient descent optimization routine built a hybrid-chemistry (HyChem) kinetic model from the measured data. The model was evaluated using combustor-relevant, high-pressure ignition delay time measurements with satisfactory agreement. The present model enables predictive simulations of C-4 in practical environments, while the underlying methodology described here can be readily extended to build kinetic models for a broad range of real fuels of interest.
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Details
- Title
- A streamlined approach to hybrid-chemistry modeling for a low cetane-number alternative jet fuel
- Creators
- Nicolas H PinkowskiYu WangSéan J CassadyDavid F DavidsonRonald K Hanson
- Publication Details
- Combustion and flame, Vol.208, pp.15-26
- Academic Unit
- Aviation Sustainability Center (ASCENT); Alternative Jet Fuel
- Publisher
- Elsevier Inc
- Grants
- 13-C-AFJE-SU-015, Federal Aviation Administration (United States, Washington) - FAA
- Identifiers
- 99900567700101842
- Language
- English
- Resource Type
- Accepted manuscript