Detailed Chemical Kinetic Modeling of Diesel Combustion with Oxygenated Fuels

Curran, Henry J.; Fisher, Elizabeth M.; Marinov, Nick M.; Pitz, William J.; Westbrook, Charles K.; Layton, David; Flynn, P. F.; Durrett, Russell; Loye, A. O. zur; Akinyemi, Omowoleola C.; Dryer, Frederick L.

doi:10.4271/2001-01-0653

Cited by 111 publications

(71 citation statements)

References 19 publications

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“…The PM emissions reduced from the value for conventional diesel fuel with no oxygen content to less than 2% of that value when the oxygen content of the fuel was 25-30% by mass. Curran et al [37] showed the influence of the oxygen content of fuels on the production of soot precursors using a detailed chemical kinetic model; the calculated values of the soot precursors decreased with increased oxygen content in the fuel. Therefore, it can be concluded that the soot formed in DME combustion should be almost zero at an oxygen content of 35% and no C-C bonds.…”

Section: Particulate Matter (Pm)mentioning

confidence: 99%

The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review

Arcoumanis

Bae

Crookes

et al. 2008

Fuel

909

412

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Citation: Arcoumanis, C., Bae, C., Crookes, R. and Kinoshita, E. (2008). The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review. Fuel, 87(7), pp. 1014-1030. doi: 10.1016/j.fuel.2007.06.007 This is the accepted version of the paper.This version of the publication may differ from the final published version. Permanent AbstractThis paper reviews the properties and application of di-methyl ether (DME) as a candidate fuel for compression-ignition engines. DME is produced by the conversion of various feedstock such as natural gas, coal, oil residues and bio-mass. To determine the technical feasibility of DME, the review compares its key properties with those of diesel fuel that are relevant to this application. DME's diesel engine-compatible properties are its high cetane number and low auto-ignition temperature. In addition, its simple chemical structure and high oxygen content result in soot-free combustion in engines. Fuel injection of DME can be achieved through both conventional mechanical and current common-rail systems but requires slight modification of the standard system to prevent corrosion and overcome low lubricity. The spray characteristics of DME enable its application to compression-ignition engines despite some differences in its properties such as easier evaporation and lower density. Overall, the low particulate matter production of DME provides adequate justification for its consideration as a candidate fuel in compression-ignition engines. Recent research and development shows comparable output performance to a diesel fuel led engine but with lower particulate emissions. NO x emissions from DME-fuelled engines can meet future regulations with high exhaust gas recirculation in combination with a lean NO x trap. Although more development work has focused on medium or heavy-duty engines, this paper provides a comprehensive review of the technical feasibility of DME as a candidate fuel for environmentally-friendly compression-ignition engines independent of size or application.

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Section: Particulate Matter (Pm)mentioning

confidence: 99%

The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review

Arcoumanis

Bae

Crookes

et al. 2008

Fuel

909

412

View full text Add to dashboard Cite

show abstract

“…We generally follow the recommendations of Allara and Shaw [27]. The rate of addition of an H atom to an olefin is assumed to have an A-factor of 1.0 × 10 13 ; the activation is 1200 cal mol −1 if the H atom adds to the terminal end of the olefin double bond and approximately 2900 cal mol −1 if the addition is to the internal C atom. The rate for alkyl radical addition to olefins will have a lower A-factor and higher activation energy than for an addition of an H atom.…”

Section: Heptyl Radical Decompositionmentioning

confidence: 99%

“…In addition, a thorough reaction mechanism was developed for nheptane [10] which was significant because this fuel is a primary reference fuel for measuring knocking tendency in spark-ignition engines [11] and is a convenient representative diesel fuel for studies of ignition in diesel engines [12,13].…”

Section: Introductionmentioning

confidence: 99%

Chemical kinetic modeling study of shock tube ignition of heptane isomers

Westbrook

Pitz

Curran

et al. 2001

Int J of Chemical Kinetics

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High-temperature detailed chemical kinetic reaction mechanisms are developed for all nine chemical isomers of heptane (C 7 H 16 ), following techniques and models developed previously for other smaller alkane hydrocarbon species. These reaction mechanisms are tested by computing shock tube ignition delay times for stoichiometric heptane/oxygen mixtures diluted by argon. Although no corresponding experiments have been reported in the literature for most of these isomers of heptane, intercomparisons between the computed results for these isomers and comparisons with available experimental results for other alkane fuels are used to validate the reaction mechanisms as much as possible. Differences in the overall reaction rates of these heptane isomers are discussed in terms of differences in their molecular structure and the resulting variations in rates of important chain branching and termination reactions. The implications of these results regarding ignition of other alkane fuels are discussed.

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“…This tendency that larger amounts of CO are formed with increasing an ethanol fraction in fuel can be acceptable taking into consideration several reports by other researches. As Curran et al (2001) pointed out, C-O bond in the oxygenated compounds is very strong and remains permanently connected during combustion. According to the low temperature (800 K) oxidation of ethanol proposed by Mittal et al (2014), a path to form CO via formation of acetaldehyde or formaldehyde is one of the major reaction routes.…”

Section: Sem and Tem Images Of Synthesized Cntmentioning

confidence: 97%

Flame Synthesis of Carbon Nanotube through a Diesel Engine Using Normal Dodecane/Ethanol Mixing Fuel as a Feedstock

Suzuki

Mori

2017

J. Chem. Eng. Japan / JCEJ

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Multi-walled carbon nanotube (MWNT) was synthesized through ame in a diesel engine, in which normal dodecane/ ethanol mixing fuel was employed as carbon and heat sources instead of gas oil. Ferrocene was used as a oating catalyst for MWNT formation and additives such as sulfur and molybdenum were employed as a promoter of MWNT formation. Mean adiabatic combustion temperatures of various experimental conditions were evaluated by measuring CO and CO 2 amounts in the exhaust gas and carrying out a mass and heat balance at the inlet and outlet of an engine. These measurements revealed that not only a mean adiabatic combustion temperature but also CO amount during combustion may play a signi cant role in synthesizing CNT in a diesel engine.

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Detailed Chemical Kinetic Modeling of Diesel Combustion with Oxygenated Fuels

Cited by 111 publications

References 19 publications

The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review

The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review

Chemical kinetic modeling study of shock tube ignition of heptane isomers

Flame Synthesis of Carbon Nanotube through a Diesel Engine Using Normal Dodecane/Ethanol Mixing Fuel as a Feedstock

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