Ignition Delay Times of a Range of Alternate Jet-Fuels and Surrogate Fuel Candidate Hydrocarbons under Fuel-Lean Conditions: a Shock Tube Study

Balagurunathan, Jayakishan; Flora, G.; Saxena, Saumitra; Kahandawala, M.; DeWitt, Matthew J.; Sidhu, Sukh; Corporan, Edwin

doi:10.2514/6.2011-696

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…In addition, F-T fuel contains no sulfur and aromatics, generally giving lower emission values when combusted [2]. Compared with petrodiesel, F-T diesel has a higher cetane number (CN) and it can be mixed with petroleum-based diesel directly [3].…”

Section: Introductionmentioning

confidence: 99%

Establishment and Validation of a Two-Component Surrogate Fuel Chemical Kinetic Skeletal Model for Fischer–Tropsch Fuel Synthesized from Coal

et al. 2020

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Fischer–Tropsch (F–T) fuel, synthesized from coal-to-liquid (CTL), is an alternative fuel with clean and efficient characteristics. In this study, a surrogate fuel model was developed, including n-dodecane (n-C12H26) and iso-octane (i-C8H18), which represents the n-alkane and iso-alkane in F–T fuel synthesized from CTL, respectively. The proportions of the components in the surrogate fuel are determined by the characteristics of the practical fuel, including cetane number (CN), C/H ration and component composition. For the establishment of the skeletal mechanism model, firstly, based on a two-step direct relationship graph (DRG) and the computational singular perturbation (CSP) importance index method, a reduced model of n-dodecane was developed involving 159 species and 399 reactions, while the detailed n-dodecane mechanism consists of 1279 species and 5056 reactions. Then, the n-dodecane skeletal mechanism was constructed based on a decoupling methodology, involving the skeletal C12 mechanism from the reduced mechanism, a C2-C3 sub mechanism and a detailed H2/CO/C1 sub mechanism. Finally, the skeletal mechanism for the F–T surrogate fuel was developed, including the n-dodecane skeletal mechanism and an iso-octane macromolecular skeletal mechanism. The final mechanism for the F–T diesel surrogate fuel consists of 169 species and 406 reactions. The n-dodecane skeletal mechanism and iso-octane skeletal mechanism were validated on various fundamental experiments, including the ignition delay in shock tubes, the primary species concentrations in jet-stirred reactors and the premixed laminar flame over wide operating conditions, which show great agreement between the predictions and measurements. Moreover, an F–T surrogate fuel mechanism was employed to simulate the combustion characteristics of an engine using computational fluid dynamics (CFD). The results show that the mechanism can predict the performance of F–T fuel combustion in engine accurately.

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Section: Introductionmentioning

confidence: 99%

Establishment and Validation of a Two-Component Surrogate Fuel Chemical Kinetic Skeletal Model for Fischer–Tropsch Fuel Synthesized from Coal

et al. 2020

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“…The different aspects of the combustion performance and emissions of GTL fuel as an alternative fuel for automobile [19][20][21][22][23][24][25][26][27] and aviation [28][29][30][31][32][33][34][35] engines were investigated and compared with those of the traditional fuels.…”

Section: Heating Systemmentioning

confidence: 99%

“…The difference in fuel properties and chemical composition have influence on the combustion and emission characteristics of fuel. The different aspects of the combustion and emission properties of GTL fuel as an alternative fuel for automobile and aviation engines were compared and investigated with those of the traditional fuels[19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35].Laminar burning speed is an important fundamental combustion property which contains information related to the mixture's diffusivity, exothermicity and reactivity. It is very useful to know the laminar burning speed of any fuel with different diluents in automobile engine and gas turbine relevant conditions (high temperature and pressure).Some studies on the laminar burning speed of GTL/air and GTL/air/diluent have been done previously.…”

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confidence: 99%

Experimental and theoretical studies of laminar burning speed and flame instability of alternative fuels and refrigerants

Wang¹

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Laminar Burning Speed Study of Alternative Fuel Air Diluent Mixtures at High Pressures and Temperatures

Wang

Metghalchi

2019

Innovations in Sustainable Energy and Cleaner Environment

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Ignition Delay Times of a Range of Alternate Jet-Fuels and Surrogate Fuel Candidate Hydrocarbons under Fuel-Lean Conditions: a Shock Tube Study

Cited by 6 publications

References 14 publications

Establishment and Validation of a Two-Component Surrogate Fuel Chemical Kinetic Skeletal Model for Fischer–Tropsch Fuel Synthesized from Coal

Establishment and Validation of a Two-Component Surrogate Fuel Chemical Kinetic Skeletal Model for Fischer–Tropsch Fuel Synthesized from Coal

Experimental and theoretical studies of laminar burning speed and flame instability of alternative fuels and refrigerants

Laminar Burning Speed Study of Alternative Fuel Air Diluent Mixtures at High Pressures and Temperatures

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