Self-ignition of diesel-relevant hydrocarbon-air mixtures under engine conditions

Pfahl, Ulrich; Fieweger, K.; Adomeit, G.

doi:10.1016/s0082-0784(96)80287-6

Cited by 336 publications

(263 citation statements)

References 9 publications

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“…3, showing experimental shock tube ignition delay results from Ciezki et al [26] at 13.5 bar pressure for stoichiometric mixtures of n-heptane and air as filled triangles. Similar experiments using n-decane as the fuel [27] produced ignition delay times very close to the n-heptane values in Fig. 3.…”

Section: Mechanism Validationssupporting

confidence: 77%

“…In Fig. 3, we used experimental results [26,27] for stoichiometric fuel/air mixtures at 13.5 bar pressure to validate the present reaction mechanisms. The experiments demonstrated that for both the diesel and gasoline PRFs, below 650K and above 900K, the branched iso-alkane fuels show ignition delay times very close to those of the n-alkane fuels.…”

Section: Primary Reference Fuel Mechanism Calculationsmentioning

confidence: 99%

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Detailed chemical kinetic reaction mechanisms for primary reference fuels for diesel cetane number and spark-ignition octane number

Westbrook

Pitz

Mehl

et al. 2011

Proceedings of the Combustion Institute

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Section: Mechanism Validationssupporting

confidence: 77%

Section: Primary Reference Fuel Mechanism Calculationsmentioning

confidence: 99%

Detailed chemical kinetic reaction mechanisms for primary reference fuels for diesel cetane number and spark-ignition octane number

Westbrook

Pitz

Mehl

et al. 2011

Proceedings of the Combustion Institute

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“…Dayma et al [25] carried out JSR experiments to validate their own new kinetic mechanism for methyl hexanoate. In contrast, in the absence of available experimental data for methyl decanoate combustion, Herbinet et al [29] used experiments from related fuels for validation purposes, including shock tube experiments [42,43] using n-decane as the fuel, JSR experiments using RME as the fuel [34], and motored engine experiments using mixtures of n-heptane and methyl decanoate [10][11][12]. The similarities in ignition behavior of the saturated species n-decane and methyl decanoate demonstrated that the long saturated straight-chain portions of both fuels were primarily responsible for their rates of ignition, the same conclusion as that reached by Dagaut et al [34] which compared the combustion of RME with n-cetane.…”

Section: Previous Studiesmentioning

confidence: 99%

Detailed chemical kinetic reaction mechanisms for soy and rapeseed biodiesel fuels

Westbrook

Naik²,

Herbinet³

et al. 2011

Combustion and Flame

240

184

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A detailed chemical kinetic reaction mechanism is developed for the five major components of soy biodiesel and rapeseed biodiesel fuels. These components, methyl stearate, methyl oleate, methyl linoleate, methyl linolenate, and methyl palmitate, are large methyl ester molecules, some with carbon-carbon double bonds, and kinetic mechanisms for them as a family of fuels have not previously been available. Of particular importance in these mechanisms are models for alkylperoxy radical isomerization reactions in which a C=C double bond is embedded in the transition state ring. The resulting kinetic model is validated through comparisons between predicted results and a relatively small experimental literature. The model is also used in simulations of biodiesel oxidation in jet-stirred reactor and intermediate shock tube ignition and oxidation conditions to demonstrate the capabilities and limitations of these mechanisms.Differences in combustion properties between the two biodiesel fuels, derived from soy and rapeseed oils, are traced to the differences in the relative amounts of the same five methyl ester components. † Lawrence

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“…These studies cover a wide range of conditions including low-to-high temperatures and pressures. Of these previous ignition delay time studies [26][27][28][29][30][31][32][33][34][35][36][37], only the work of Tang et al [37] included mixtures of CH 4 and DME. It covered dilute mixtures within a pressure range of 1 − 10 atm.…”

Section: Introductionmentioning

confidence: 99%

An ignition delay and kinetic modeling study of methane, dimethyl ether, and their mixtures at high pressures

Burke

Somers

O’Toole

et al. 2015

Combustion and Flame

397

279

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The development of accurate chemical kinetic models capable of predicting the combustion of methane and dimethyl ether in common combustion environments such as compression ignition engines and gas turbines is important as it provides valuable data and understanding of these fuels under conditions that are difficult and expensive to study in the real combustors. In this work, both experimental and chemical kinetic model-predicted ignition delay time data are provided covering a range of conditions relevant to gas turbine environments (T = 600 − 1600 K, p = 7 − 41 atm, φ = 0.3, 0.5, 1.0, and 2.0 in 'air' mixtures). The detailed chemical kinetic model (Mech 56.54) is capable of accurately predicting this wide range of data, and it is the first mechanism to incorporate high-level rate constant measurements and calculations where available for the reactions of DME. This mechanism is also the first to apply a pressure-dependent treatment to the low-temperature reactions of DME. It has been validated using available literature data including flow reactor, jet-stirred reactor, shock-tube ignition delay times, shock-tube speciation, flame speed, and flame speciation data. New ignition delay time measurements are presented for methane, dimethyl ether, and their mixtures; these data were obtained using three different shock tubes and a rapid compression machine. In addition to the DME/CH 4 blends, high-pressure data for pure DME and pure methane were also obtained. Where possible, the new * address:

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Self-ignition of diesel-relevant hydrocarbon-air mixtures under engine conditions

Cited by 336 publications

References 9 publications

Detailed chemical kinetic reaction mechanisms for primary reference fuels for diesel cetane number and spark-ignition octane number

Detailed chemical kinetic reaction mechanisms for primary reference fuels for diesel cetane number and spark-ignition octane number

Detailed chemical kinetic reaction mechanisms for soy and rapeseed biodiesel fuels

An ignition delay and kinetic modeling study of methane, dimethyl ether, and their mixtures at high pressures

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