Journal article
A physics-based approach to modeling real-fuel combustion chemistry IV. HyChem modeling of combustion kinetics of a bio-derived jet fuel and its blends with a conventional Jet A
Combustion and flame, Vol.198, pp.477-489
12/2018
Handle:
https://hdl.handle.net/2376/125505
Appears in Aviation Sustainability Center (ASCENT)
Abstract
A Hybrid Chemistry (HyChem) approach has been recently developed for the modeling of real fuels; it incorporates a basic understanding about the combustion chemistry of multicomponent liquid fuels that overcomes some of the limitations of the conventional surrogate fuel approach. The present work extends this approach to modeling the combustion behaviors of a two-component bio-derived jet fuel (Gevo, designated as C1) and its blending with a conventional, petroleum-derived jet fuel (Jet A, designated as A2). The stringent tests and agreement between the HyChem models and experimental measurements for the combustion chemistry, including ignition delay and laminar flame speed, of C1 highlight the validity as well as potential wider applications of the HyChem concept in studying combustion chemistry of complex liquid hydrocarbon fuels. Another aspect of the present study aims at answering a central question of whether the HyChem models for neat fuels can be simply combined to model the combustion behaviors of fuel blends. The pyrolysis and oxidation of several blends of A2 and C1 were investigated. Flow reactor experiments were carried out at pressure of 1 atm, temperature of 1030 K, with equivalence ratios of 1.0 and 2.0. Shock tube measurements were performed for the blended fuel pyrolysis at 1 atm from 1025 to 1325 K. Ignition delay times were also measured using a shock-tube. Good agreement between measurements and model predictions was found showing that formation of the products as well as combustion properties of the blended fuels were predicted by a simple combination of the HyChem models for the two individual fuels, thus demonstrating that the HyChem models for two jet fuels of very different compositions are “additive.”
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Details
- Title
- A physics-based approach to modeling real-fuel combustion chemistry IV. HyChem modeling of combustion kinetics of a bio-derived jet fuel and its blends with a conventional Jet A
- Creators
- Kun Wang - Stanford UniversityRui Xu - Stanford UniversityTom Parise - Stanford UniversityJiankun Shao - Stanford UniversityAshkan Movaghar - University of Southern CaliforniaDong Joon Lee - University of Southern CaliforniaJi-Woong Park - University of ConnecticutYang Gao - University of ConnecticutTianfeng Lu - University of ConnecticutFokion N Egolfopoulos - University of Southern CaliforniaDavid F Davidson - Stanford UniversityRonald K Hanson - Stanford UniversityCraig T Bowman - Stanford UniversityHai Wang - Stanford University
- Publication Details
- Combustion and flame, Vol.198, pp.477-489
- Academic Unit
- Aviation Sustainability Center (ASCENT); Alternative Jet Fuel
- Publisher
- Elsevier Inc
- Grants
- 13-CAJFE-SU-006, Federal Aviation Administration (United States, Washington) - FAA13-C-AJFE- SU-015, Federal Aviation Administration (United States, Washington) - FAA
- Identifiers
- 99900621899901842
- Language
- English
- Resource Type
- Journal article