Laminar flame speeds of n -decane, n -butylbenzene, and n -propylcyclohexane mixtures

Comandini, Andrea; Dubois, Thomas; Chaumeix, Nabiha

doi:10.1016/j.proci.2014.05.125

Cited by 49 publications

(41 citation statements)

References 27 publications

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“…However, Nauclér et al [16] analyzed the results of Brequigny et al and showed that this result was due to the equation Brequigny et al used for determining the equivalence ratio (CH 3 NO 2 + 0.75 (O 2 +3.76 N 2 )  CO 2 + 1.5 H 2 O + 3.32 N 2 ). Nauclér et al used a different set of ideal products to determine the equivalence ratio (CH 3 NO 2 + 1.25 O 2  CO 2 + 1.5 H 2 O + NO) and found that the maximum flame speed was then obtained on the fuel-rich side (at an equivalence ratio of around 1.2), in agreement with results generally observed with other hydrocarbons [17,18].…”

Section: Introductionsupporting

confidence: 57%

Nitromethane ignition behind reflected shock waves: Experimental and numerical study

Mathieu

Giri

Agard

et al. 2016

Fuel

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Ignition delay times for nitromethane have been measured behind reflected shock waves over wide ranges of temperature (875-1595 K); pressure (2.0-35 atm); equivalence ratio (0.5, 1.0, and 2.0); and dilution (99, 98, 95, and 90% Ar by volume) using a L9 Taguchi array. Emission from excited-state hydroxyl radials (OH*) was the primary diagnostic for determining the ignition delay times from the experiments. Results showed that nitromethane's ignition delay time is very sensitive to most of the experimental parameters that were varied. In addition, the OH* profile for nitromethane presents an interesting double feature, with the relative intensity between the two peaks varying greatly depending on the experimental conditions. A detailed chemical kinetics mechanism was assembled from previous work by the authors and from sub-mechanisms from the literature. The latest theoretical work on nitromethane decomposition was used, and the final mechanism satisfactorily reproduces the ignition delay time data from the present study, as well as nitromethane and CH 4 /NOx ignition delay time data available from the literature.

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Section: Introductionsupporting

confidence: 57%

Nitromethane ignition behind reflected shock waves: Experimental and numerical study

Mathieu

Giri

Agard

et al. 2016

Fuel

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“…Therefore, these experimental results shed light on the fact that laminar flame speeds are influenced by both the small intermediates involved in the combustion reactions and the initial step in the fuel decomposition. 7 For lean equivalence ratio conditions, the above-mentioned tendency is well observed in Figure 12: n-decane > propyl cyclohexane > npropyl benzene. However, discrepancies among these measurements are limited (about 2−3 cm/s), meaning that it is difficult to estimate this tendency with accuracy.…”

Section: Energy and Fuelsmentioning

confidence: 65%

Experimental Investigation of Laminar Flame Speed Measurement for Kerosene Fuels: Jet A-1, Surrogate Fuel, and Its Pure Components

Modica

et al. 2018

Energy Fuels

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The present work investigated the laminar flame speed measurement of kerosene-relevant fuel, including Jet A-1 commercial kerosene, and surrogate kerosene fuel and its pure components (n-decane, n-propyl benzene, and propyl cyclohexane) using a high-pressure Bunsen flame burner. The OH* chemiluminescence technique and the kerosene-PLIF technique were used for flame contours detection in order to calculate the laminar flame speed. The experiments were first conducted for n-decane/air flame at T = 400 K, φ = 0.6−1.3, and atmospheric pressure conditions in order to validate the whole experimental system and measurement methodology. The laminar flame speed of Jet A-1/air, surrogate/air, and pure kerosene component (n-decane, n-propyl benzene, and propyl cyclohexane) was then measured under large operating conditions, including temperature T = 400−473 K, pressure P = 0.1−1.0 MPa, and equivalence ratio φ = 0.7−1.3. It was found that these three pure components of kerosene have very similar laminar flame speed. By comparing the experimental results of surrogate kerosene and Jet A-1 commercial kerosene, it was observed that the proposed surrogate kerosene, i.e., mixtures of 76.7 wt % ndecane, 13.2 wt % n-propyl benzene, and 10.1 wt % propyl cyclohexane, can appropriately reproduce the flame speed property of Jet A-1 commercial kerosene fuel. The experimental results were further compared with simulation results using a skeletal kerosene mechanism.

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“…However, it must be noted that the decoupling methodology still has some limitations as it is applied to different types of fuels. For example, Comandini et al [46] recently found that the flame speed of aromatics is also strongly affected by the ring chemistry, especially by the reactions involving the radicals of phenoxy, benzyl, and phenyl. Moreover, the decomposition of cyclic alkanes is not completely decoupled with the chemistry of small intermediates due to the slower ring opening than that in linear alkanes.…”

Section: Decoupling Methodologymentioning

confidence: 99%

Development of a skeletal mechanism for diesel surrogate fuel by using a decoupling methodology

Chang

Jia

et al. 2015

Combustion and Flame

163

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Laminar flame speeds of n -decane, n -butylbenzene, and n -propylcyclohexane mixtures

Cited by 49 publications

References 27 publications

Nitromethane ignition behind reflected shock waves: Experimental and numerical study

Nitromethane ignition behind reflected shock waves: Experimental and numerical study

Experimental Investigation of Laminar Flame Speed Measurement for Kerosene Fuels: Jet A-1, Surrogate Fuel, and Its Pure Components

Development of a skeletal mechanism for diesel surrogate fuel by using a decoupling methodology

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