Ignition characteristics of an alternative kerosene from direct coal liquefaction and its blends with conventional RP-3 jet fuel

Yang, Zhiyuan; Zeng, Ping; Wang, Biyao; Jia, Wenlin; Xia, Zuxi; Liang, Jinhu; Wang, Quan‐De

doi:10.1016/j.fuel.2021.120258

Cited by 23 publications

(27 citation statements)

References 37 publications

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“…The experimental observations are in accordance with previous ROP analysis during the ignition studies on RP-3 and DCL-derived jet fuels. 35 4.3. Comparison with RP-3 Jet Fuel Pyrolysis.…”

Section: Resultsmentioning

confidence: 99%

“…35 The experimental and modeling study results indicate that the species profiles of small hydrocarbon compounds during the oxidation of the DCLderived jet fuel and RP-3 show very different phenomena, even though the high-temperature ignition properties between the two different fuels are similar. 35 Thus, pyrolysis studies of DCL-derived jet fuel are necessary to obtain a better understanding of its combustion properties and to develop more predictable combustion kinetic mechanisms, that is, within the HyChem framework. 31,36,37 Besides the use of the DCL-derived jet fuel for civil aviation, pyrolysis of alternative jet fuels with high energy density is of crucial importance in the development of advanced hypersonic aircrafts because the jet fuel can be used to relieve the great heat load via the endothermic pyrolysis process.…”

Section: Introductionmentioning

confidence: 93%

“…35 The used surrogate models are based on previous detailed analysis on the measured physical properties, that is, density, H/C ratio, lower heating values, and molecular compositions of the real jet fuels. 35…”

Section: Kinetic Modelingmentioning

confidence: 99%

“…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 . The experimental and modeling study results indicate that the species profiles of small hydrocarbon compounds during the oxidation of the DCL-derived jet fuel and RP-3 show very different phenomena, even though the high-temperature ignition properties between the two different fuels are similar .…”

Section: Introductionmentioning

confidence: 99%

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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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“…The experimental observations are in accordance with previous ROP analysis during the ignition studies on RP-3 and DCL-derived jet fuels. 35 4.3. Comparison with RP-3 Jet Fuel Pyrolysis.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

Section: Kinetic Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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 schematic diagram of the HPST is shown in Figure 3. Details of the experimental setup were described in previous studies [30,31], so only a brief description will be given below. Both the HPST and the SPST were based on the same principle, except that the latter did not have a dump tank, so there was no need to consider this step when inflating.…”

Section: High-pressure Shock Tube (Hpst)mentioning

confidence: 99%

Experimental Study on the Pyrolysis and Soot Formation Characteristics of JP-10 Jet Fuel

Wu²,

Jia

et al. 2022

Energies

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Experiments of high temperature pyrolysis and soot formation analysis on JP-10, one of the representatives of fuels, were conducted in order to analyze its properties and help construct its chemical kinetic mechanism. High-temperature pyrolysis and fuel-rich oxidation experiments were carried out on JP-10 fuel under different conditions using two types of shock tube equipment (SPST and HPST). The pyrolysis experiments were carried out in two working conditions with JP-10 concentrations of 200 ppm and 500 ppm (in Ar). Quantitative analyses of JP-10 pyrolysis products were carried out using gas chromatography, and a total of eight small molecule products below C4 were detected. Among these eight products, methane, ethene, and acetylene were the three main products. In the fuel-rich oxidation experiments for soot formation analysis, a total of nine working conditions were designed, but soot formation was detected only under three of them. The soot induction delay time and soot yield of JP-10 were investigated using laser absorption measurement. The SYmax (the maximum amount of soot yield) and other relevant parameters were investigated under these three different working conditions. At a pressure of 3 bar and a temperature of 1884.10 K, the soot yield reached a maximum of 14.3. In addition to practical insights from these data, they were also useful for the construction and validation of the chemical kinetic mechanism of JP-10.

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Ab initio kinetic study on the abstraction reactions of methylcyclohexane and implications for high‐temperature ignition simulations from shock tube experiment

Liang,

Jia,

Yao

et al. 2024

Int J of Chemical Kinetics

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Methylcyclohexane (MCH) is the simplest alkylated cyclohexane, and has been widely employed in surrogate models to represent the cycloalkanes in real fuels. Thus, extensive experimental and kinetic modeling studies have been performed to understanding the combustion chemistry of MCH. However, through a detailed literature analysis, there still lack a systematic theoretical study on the abstraction reactions of MCH, which are the main initial oxidation pathway of MCH. Herein, this work reports a systematic ab initio chemical kinetic study on the abstraction reactions of MCH with different radicals/species. Specifically, reaction rate constants of 30 abstraction reactions of MCH with H/O/OH/O2/HO2/CH3 at different sites are computed using transition state theory (TST) by using quantum chemistry calculation results at DLPNO‐CCSD(T)/CBS//M06‐2X/cc‐pVTZ level. The computed results are incorporated into a detailed mechanism to simulate newly measured ignition delay times (IDTs) of MCH in this work at equivalence ratios of 0.5, 1.0, and 2.0, pressures of 2 and 5 bar, temperatures ranging from 1140 to 1640 K. The updated detailed mechanism demonstrates improvement in the prediction of IDTs, especially at fuel‐rich conditions. The fuel concentration and dilution effect on the IDTs are discussed, and a general Arrhenius expression is adopted to fit the IDTs from both this work and literature work. This work should be valuable for further optimization of detailed kinetic mechanisms and also for gaining insight into the combustion chemistry of MCH.

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Ignition characteristics of an alternative kerosene from direct coal liquefaction and its blends with conventional RP-3 jet fuel

Cited by 23 publications

References 37 publications

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

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

Experimental Study on the Pyrolysis and Soot Formation Characteristics of JP-10 Jet Fuel

Ab initio kinetic study on the abstraction reactions of methylcyclohexane and implications for high‐temperature ignition simulations from shock tube experiment

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