Ignition delay times of decalin over low-to-intermediate temperature ranges: Rapid compression machine measurement and modeling study

Yu, Liang; Wu, Zhiyong; Qiu, Yue; Qian, Yong; Mao, Yebing; Lü, Xingcai

doi:10.1016/j.combustflame.2018.06.014

Cited by 44 publications

(11 citation statements)

References 60 publications

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“…This RCM contains a creviced piston to avoid the vortex formation and to ensure the post-combustion charge homogeneity. The use of a creviced piston, which was largely employed in previous experimental works [29][30][31][32] helps to study the hydrocarbon autoignition chemistry limiting physical effects. Further details of the RCM of the University of Orléans can be accessed elsewhere [33,34]only a brief description of this machine is presented here.…”

Section: Rapid Compression Machinementioning

confidence: 99%

Oxidation of di-n-butyl ether: Experimental characterization of low-temperature products in JSR and RCM

Belhadj

Benoit

Dagaut

et al. 2020

Combustion and Flame

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Section: Rapid Compression Machinementioning

confidence: 99%

Oxidation of di-n-butyl ether: Experimental characterization of low-temperature products in JSR and RCM

Belhadj

Benoit

Dagaut

et al. 2020

Combustion and Flame

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“…To acquire the exact value of ignition delay time, inert runs were conducted in which oxygen was replaced by the same mole fraction of argon. Thus, no oxidation reactions occurred in blank controls, and the nonreactive pressure traces indicated the heat loss in the process of compression, which was converted to extra volume in the modeling work …”

Section: Results and Discussionmentioning

confidence: 99%

“…Thus, no oxidation reactions occurred in blank controls, and the nonreactive pressure traces indicated the heat loss in the process of compression, which was converted to extra volume in the modeling work. 25 Figure 4 illustrates the autoignition characteristics of SME30 and WCOME30 at the pressure of 15 bar and the equivalence ratio of 0.6, over the temperature range of 641−772 K. Figures 5 and 6 display the specific pressure traces at varying compressed temperature, which captured both low temperature (L−T) zone and NTC zone. Within the temperature range of 641−736 K, both of total and first-stage ignition delay time became shorter as the temperature rose, which signified higher reactivity in the whole system.…”

Section: Resultsmentioning

confidence: 99%

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Experimental and Modeling Study on Autoignition of a Biodiesel/n-Heptane Mixture and Related Surrogate in a Heated Rapid Compression Machine

Lü

et al. 2019

Energy Fuels

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In this paper, ignition delay time of two kinds of biodiesel, soybean oil methyl ester (SME) and waste cooking oil methyl ester (WCOME) blended with n-heptane, were measured in a heated rapid compression machine (RCM). To meet the requirement of measuring high boiling fuels like biodiesel, several modifications were applied in RCM platform, which embodied in global preheating, reactant preparation, and gas dilution. Along with these methodologies, ignition delay times of SME30 and WCOME30 (30% biodiesel and 70% n-heptane in volume fraction) were measured at 15 bar, within temperature range of 641−772 K. Both biodiesels exhibited typical two-stage ignition characteristics and pronounced negative temperature coefficient behaviors. To better investigate the ignition process of biodiesel, novel surrogate fuels have been formulated including methyl decanoate, n-hexadecane, methyl trans-3-hexenoate, and 1,4-hexadiene, according to Chemical Deconstruction Methodology. Autoignition properties of surrogate and target biodiesel were investigated under the same conditions in RCM and good agreements have been found in point-to-point validation experiments, which verified good performance of quaternary surrogate fuels for biodiesel. Furthermore, kinetic models of biodiesel were proposed on the basis of surrogate fuels, which consisted of 4901 species and 18 669 reactions. The novel model has good predictions in ignition delay times in low-tointermediate temperature regions measured in RCM, and the kinetic model has great potentials in revelation of autoignition mechanisms and in development of CFD applications in internal combustion engines.

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“…There have been extensive experimental and kinetic modeling studies on pyrolysis and combustion properties of monocyclic alkanes such as cyclohexane, − methylcyclohexane, , ethyl cyclohexane, n-propyl cyclohexane, and n -butyl cyclohexane due to their large amount of existence in traditional gasoline and jet fuels. However, very few studies have been reported on the real DCL-derived jet fuels besides some studies on representative polycyclic alkanes including decalin, − tetralin, , and JP-10. − In addition, the current aviation fuel testing, approval, and airworthiness certification processes limit the usage of the DCL-derived jet fuel as the single fuel in current aeroengines, and the DCL-derived jet fuel should also be used by blending with traditional jet fuels. , Hence, experimental and kinetic modeling studies on the DCL-derived jet fuel and its blends with the traditional jet fuel are one of the key procedures toward practical application of the DCL-derived jet fuel. Previously, Yang et al studied the high-temperature ignition properties of the DCL-derived jet fuel and its blend with the traditional RP-3 jet fuel .…”

Section: Introductionmentioning

confidence: 99%

Single-Pulse Shock Tube Experimental and Kinetic Modeling Study on Pyrolysis of a Direct Coal Liquefaction-Derived Jet Fuel and Its Blends with the Traditional RP-3 Jet Fuel

Wang¹,

Zeng²,

et al. 2021

ACS Omega

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A basic understanding of the high-temperature pyrolysis process of jet fuels is not only valuable for the development of combustion kinetic models but also critical to the design of advanced aeroengines. The development and utilization of alternative jet fuels are of crucial importance in both military and civil aviation. A direct coal liquefaction (DCL) derived liquid fuel is an important alternative jet fuel, yet fundamental pyrolysis studies on this category of jet fuels are lacking. In the present work, high-temperature pyrolysis studies on a DCL-derived jet fuel and its blend with the traditional RP-3 jet fuel are carried out by using a single-pulse shock tube (SPST) facility. The SPST experiments are performed at averaged pressures of 5.0 and 10.0 bar in the temperature range around 900–1800 K for 0.05% fuel diluted by argon. Major intermediates are obtained and quantified using gas chromatography analysis. A flame-ionization detector and a thermal conductivity detector are used for species identification and quantification. Ethylene is the most abundant product for the two fuels in the pyrolysis process. Other important intermediates such as methane, ethane, propyne, acetylene, and 1,3-butadiene are also identified and quantified. The pyrolysis product distributions of the pure RP-3 jet fuel are also performed. Kinetic modeling is performed by using a modern detailed mechanism for the DCL-derived jet fuel and its blends with the RP-3 jet fuel. Rate-of-production analysis and sensitivity analysis are conducted to compare the differences of the chemical kinetics of the pyrolysis process of the two jet fuels. The present work is not only valuable for the validation and development of detailed combustion mechanisms for alternative jet fuels but also improves our understanding of the pyrolysis characteristics of alternative jet fuels.

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Ignition delay times of decalin over low-to-intermediate temperature ranges: Rapid compression machine measurement and modeling study

Cited by 44 publications

References 60 publications

Oxidation of di-n-butyl ether: Experimental characterization of low-temperature products in JSR and RCM

Oxidation of di-n-butyl ether: Experimental characterization of low-temperature products in JSR and RCM

Experimental and Modeling Study on Autoignition of a Biodiesel/n-Heptane Mixture and Related Surrogate in a Heated Rapid Compression Machine

Single-Pulse Shock Tube Experimental and Kinetic Modeling Study on Pyrolysis of a Direct Coal Liquefaction-Derived Jet Fuel and Its Blends with the Traditional RP-3 Jet Fuel

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