A shock tube study of ignition delay in the combustion of ethylene

Saxena, Saumitra; Kahandawala, M.; Sidhu, Sukh

doi:10.1016/j.combustflame.2010.10.011

Cited by 68 publications

(30 citation statements)

References 30 publications

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“…While further improvement is still needed, the current version is much improved over the original one as a result of the experiments and modeling presented in Kopp et al [1] and the present paper, respectively. ... [2] ... [9] ... [4] ... [13] ... [11] ... [12] ... [16] ... [8] ... [17] ... [7] ... [14] ... [10] ... [15] ... [19] ... [5] ... [20] ... [6] ... [21] ... [1] ... [22] ... [18] ... [23] Ċ ... [34] ... [31] ... [35] ... [32] ... [36] ... [33] ... [30] ... [37] ... [26] ... [38] ... [27] ... [39] ... [28] ... [40] ... [24] ... [41] ... [25] ... [42] …”

Section: Discussionmentioning

confidence: 99%

“…In light of some of the pressure and equivalence ratio characteristics seen in the present study for Comparisons against the relatively recent data set of Saxena et al (using OH* as the ignition diagnostic) [39] were also performed. Figure 18 shows some selected comparisons for their shock-tube results using C 2 H 4 -O 2 mixtures diluted in 93% Argon by volume.…”

Section: Model Comparisons and Validationmentioning

confidence: 99%

See 1 more Smart Citation

Oxidation of Ethylene—Air Mixtures at Elevated Pressures, Part 2: Chemical Kinetics

Kopp¹,

Petersen²,

Metcalfe³

et al. 2014

Journal of Propulsion and Power

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Section: Discussionmentioning

confidence: 99%

Section: Model Comparisons and Validationmentioning

confidence: 99%

Oxidation of Ethylene—Air Mixtures at Elevated Pressures, Part 2: Chemical Kinetics

Kopp¹,

Petersen²,

Metcalfe³

et al. 2014

Journal of Propulsion and Power

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“…The detailed mechanism developed by Wang and Laskin [1] includes 71 species and 395 reaction steps. Comparisons of ignition delay times and laminar flame speeds calculated with the detailed mechanism and experimental data (ignition delay times taken from Saxena et al [30], with laminar flame speeds taken from Gibbs and Calcote [31] and Egolfopoulos et al [32]) demonstrate the accuracy of the detailed mechanism.…”

Section: Skeletal Mechanisms Of Ethylenementioning

confidence: 99%

Development of efficient and accurate skeletal mechanisms for hydrocarbon fuels and kerosene surrogate

Zhong

Zhang

et al. 2015

Acta Mech. Sin.

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In this paper, the methodology of the directed relation graph with error propagation and sensitivity analysis (DRGEPSA), proposed by Niemeyer et al. (Combust Flame 157:1760-1770, and its differences to the original directed relation graph method are described. Using DRGEPSA, the detailed mechanism of ethylene containing 71 species and 395 reaction steps is reduced to several skeletal mechanisms with different error thresholds. The 25-species and 131-step mechanism and the 24-species and 115-step mechanism are found to be accurate for the predictions of ignition delay time and laminar flame speed. Although further reduction leads to a smaller skeletal mechanism with 19 species and 68 steps, it is no longer able to represent the correct reaction processes. With the DRGEPSA method, a detailed mechanism for n-dodecane considering low-temperature chemistry and containing 2115 species and 8157 steps is reduced to a much smaller mechanism with 249 species and 910 steps while retaining good accuracy. If considering only high-temperature (higher than 1000 K) applications, the detailed mechanism can be simplified to even smaller mechanisms with 65 species and 340 steps or 48 species and 220 steps. Furthermore, a detailed mechanism for a kerosene surrogate having 207 species and 1592 steps is reduced with various error thresholds and the results show that the 72-species and 429-step mechanism and the 66-species and 392-step mechanism are capable of predicting correct combustion properties compared to those of the detailed mechanism. It is well recognized that kinetic mechanisms can be effectively used in computations only after they are reduced to an acceptable size level for computation capacity and at the same time retaining accuracy. Thus, the skeletal mechanisms generated from the present work are expected to be useful for the application of kinetic mechanisms of hydrocarbons to numerical simulations of turbulent or supersonic combustion.

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“…Recently, Saxena et al (6) systematically examined the ignition delay of ethylene combustion under high pressure and fuel-rich condition. However, ethylene played a very important role in hypersonic propulsion system (7) .…”

Section: Introductionmentioning

confidence: 99%

Chemiluminescence Measurements of Laminar Premixed Ethylene/Air Flame at Low Pressure

Tan

Zeng

Wang

2012

JTST

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Ethylene plays an important role in regenerative-cooling scramjet engine, but its combustion characteristics have not yet been studied thoroughly. This paper reports the design of a square flat flame burner used for chemiluminescence measurement technique and the concentration of OH* and CH* of laminar premixed ethylene/air flame at low pressure. An approach of obtaining quantitative concentration through both PLIF experiments and CHEMKIN simulations is proposed. Results show that the maximum concentration is about 10 8 cm -3 and increases with elevated pressure.Although the maximum concentration depends much on equivalence ratio and pressure, the ratio of the maximum CH*/OH* concentration is independent of pressure (10kPa~50kPa). The results are prerequisite for employing chemiluminescence technique in ethylene combustion process.

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A shock tube study of ignition delay in the combustion of ethylene

Cited by 68 publications

References 30 publications

Oxidation of Ethylene—Air Mixtures at Elevated Pressures, Part 2: Chemical Kinetics

Oxidation of Ethylene—Air Mixtures at Elevated Pressures, Part 2: Chemical Kinetics

Development of efficient and accurate skeletal mechanisms for hydrocarbon fuels and kerosene surrogate

Chemiluminescence Measurements of Laminar Premixed Ethylene/Air Flame at Low Pressure

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