Predicting the global combustion behaviors of petroleum-derived and alternative jet fuels by simple fuel property measurements

Won, Sang Hee; Veloo, Peter S.; Dooley, Stephen; Santner, Jeffrey; Haas, Francis M.; Ju, Yiguang; Dryer, Frederick L.

doi:10.1016/j.fuel.2015.11.026

Cited by 69 publications

(34 citation statements)

References 61 publications

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“…1 Therefore, major research efforts are currently centered on the discovery of renewable energy sources and alternative fuels, which are non-petroleum and are, for instance, bio-based. 2 The alternative fuels based on biomass energy sources such as ethanol and biodiesel are extremely important and capable of gradually replacing fossil fuels. [3][4][5][6] The physicochemical properties of ethanol and its compatibility make it suitable for use in spark ignition combustion engines.…”

Section: Introductionmentioning

confidence: 99%

A miniaturized electronic sensor for instant monitoring of ethanol in gasohol fuel blends

et al. 2018

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Section: Introductionmentioning

confidence: 99%

A miniaturized electronic sensor for instant monitoring of ethanol in gasohol fuel blends

et al. 2018

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“…given condition, the abstraction reaction by H-atoms is seen to produce secondary C 15 H 31 The main consumption of iC 10 H 21 occurs by inter-isomerization reactions of this radical followed 437 by decomposition of the relatively stable secondary iC 10 H 21 radical finally formed. The main decom-438 position products form alkenes such as iC 5 H 10 and iC 7 H 14 , and iC 3 H 7 radicals as well.…”

mentioning

confidence: 99%

“…The iC 15 H31 radicals formed are isomerized to 4 different isomers: 320 a-iC 15 H 31 ↔ b-iC 15 H 31 ↔ c-iC 15 H 31 ↔ d-iC 15 H 31 321 322The reaction rates of iC 15 H 31 isomerization are based on the reaction rate expressions determined 323 experimentally and numerically byAwan et al [36] for the analogous 5-methylhex-1-yl radical. They 324 studied isomerization and decomposition reaction rate in the temperature and pressure range of 500 325 to 1900 K and 0.1 to 1000 bar.…”

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confidence: 99%

Experimental and modeling study of farnesane

Richter

Kathrotia

Naumann

et al. 2018

Fuel

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10Several alternative synthetic fuels are in discussion as a replacement for conventional fuels like Jet A-1 11 to cope with limited supplies of crude oil as well as their emissions connected with its use such as the 12 greenhouse gas CO 2 . One of the alternative fuels which have received high attention recently is far-13 nesane (2,6,10-trimethyldodecane), a biofuel produced from sugar using a biotechnological process. 14 In this paper, combustion characteristics of farnesane were investigated by measuring its ignition 15 delay time using a shock tube at elevated pressure (16 bar) and two different stoichiometries ( = 1.0 16 and = 2.0) and the laminar burning velocity at atmospheric and elevated pressures (1, 3, and 6 bar). 17These results were compared to a conventional Jet A-1 fuel showing that farnesane has a similar 18 combustion behavior. Furthermore, a reaction model was developed capable to predict the measured 19 combustion properties. The calculation of the ignition delay times yields excellent results when com-20 pared to the measurements; the computations of the laminar flame speeds are in good agreement 21 with the measurements. In addition, the reaction model was analyzed to get further insight into the 22 main reaction steps of farnesane oxidation. 23 24 eling 26 flight conditions, e.g. cold temperatures at high altitude. Moreover, this certification assures that the 40 new synthetic jet fuel is compatible with current engines and technology and that synthetic jet fuel 41 blends are interchangeable with conventional aviation fuels to prevent any logistics or storage prob-42 lems at airports that may arise due to the handling of different fuels. 43The use of coal or natural gas as feedstock for synthetic fuel production via the Fischer-Tropsch 44 process (CtL or GtL) led to the first approved alternative fuels for blending up to 50 %. Moreover a 45CtL production process exists which yields a fully synthetic jet fuel (FSJF), meaning that it can be used 46 as a replacement of crude oil based fuels without blending [2]. This is of course an alternative to the 47To benefit from biofuels -a sustainable replacement for crude oil based fuels, reduction of overall 52 emissions, including the greenhouse gas CO 2 [3, 9] -other fuels, processes and technologies were 53 developed. Approved in 2014 [10], a biofuel for aviation which can be used as a drop-in-fuel is far-54 nesane [8], a branched alkane with 15 carbon atoms as it is shown in Fig. 1. Its chemical name is 55 2,6,10-trimethyldodecane; for a better readability, only the name farnesane is used in this paper. The 56 production of farnesane has three major steps. At first, sugar is fermented by yeast to farnesene, a 57 molecule with four double bonds [11]. The second step is the hydrogenation from farnesene to far-58 nesane which in the last step is purified by distillation [8]. Whereas Jet A-1 is a multicomponent mix-59 ture [2] farnesane is a single component with a molecular size being in the upper range of the molec-60 ular size distribution typical...

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“…Also, the development of surrogates and respective fuel models deserves attention to improve the predictability of the combustion performance. Won et al [31] have proposed a procedure to screen the suitability of emerging non-fossil jet fuels and their blends with petroleum-derived conventional jet fuel. They analyzed fuel surrogate parameters, namely H/C ratio, mean molecular weight, derived cetane number (DCN), and threshold sooting index (TSI), and correlations with the combustion behavior including laminar flame speed, extinction limit, and global reactivity profile [31] .…”

Section: Setting the Stage: Combustion And Chemistry In Contextmentioning

confidence: 99%

“…Won et al [31] have proposed a procedure to screen the suitability of emerging non-fossil jet fuels and their blends with petroleum-derived conventional jet fuel. They analyzed fuel surrogate parameters, namely H/C ratio, mean molecular weight, derived cetane number (DCN), and threshold sooting index (TSI), and correlations with the combustion behavior including laminar flame speed, extinction limit, and global reactivity profile [31] . Examined fuels included petroleum-derived jet fuel as a reference and synthetic as well as bio-derived alternatives, using e.g., fuels from FT gas-to-liquid (GTL) and coal-to-liquid (CTL) processes or from different animal fats or plant oils [31] .…”

Section: Setting the Stage: Combustion And Chemistry In Contextmentioning

confidence: 99%

Combustion in the future: The importance of chemistry

Kohse‐Höinghaus

2021

Proceedings of the Combustion Institute

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Combustion involves chemical reactions that are often highly exothermic. Combustion systems utilize the energy of chemical compounds released during this reactive process for transportation, to generate electric power, or to provide heat for various applications. Chemistry and combustion are interlinked in several ways. The outcome of a combustion process in terms of its energy and material balance, regarding the delivery of useful work as well as the generation of harmful emissions, depends sensitively on the molecular nature of the respective fuel. The design of efficient, low-emission combustion processes in compliance with air quality and climate goals suggests a closer inspection of the molecular properties and reactions of conventional, bio-derived, and synthetic fuels. Information about flammability, reaction intensity, and potentially hazardous combustion by-products is important also for safety considerations. Moreover, some of the compounds that serve as fuels can assume important roles in chemical energy storage and conversion. Combustion processes can furthermore be used to synthesize materials with attractive properties. A systematic understanding of the combustion behavior thus demands chemical knowledge. Desirable information includes properties of the thermodynamic states before and after the combustion reactions and relevant details about the dynamic processes that occur during the reactive transformations from the fuel and oxidizer to the products under the given boundary conditions. Combustion systems can be described, tailored, and improved by taking chemical knowledge into account. Combining theory, experiment, model development, simulation, and a systematic analysis of uncertainties enables qualitative or even quantitative predictions for many combustion situations of practical relevance. This article can highlight only a few of the numerous investigations on chemical processes for combustion and combustion-related science and applications, with a main focus on gas-phase reaction systems. It attempts to provide a snapshot of recent progress and a guide to exciting opportunities that drive such research beyond fossil combustion.

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Predicting the global combustion behaviors of petroleum-derived and alternative jet fuels by simple fuel property measurements

Cited by 69 publications

References 61 publications

A miniaturized electronic sensor for instant monitoring of ethanol in gasohol fuel blends

A miniaturized electronic sensor for instant monitoring of ethanol in gasohol fuel blends

Experimental and modeling study of farnesane

Combustion in the future: The importance of chemistry

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