Ignition delay time and sooting propensity of a kerosene aviation jet fuel and its derivative blended with a bio-jet fuel

Han, Hee Sun; Kim, Chul Jin; Cho, Cheon Hyeon; Sohn, Chae Hoon; Han, Jinyu

doi:10.1016/j.fuel.2018.06.032

Cited by 25 publications

(12 citation statements)

References 16 publications

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“…TSIs of surrogate fuels are calculated by eq with measured smoke points. Here, the selected components of surrogate fuels for Jet A-1 and JP-8 are n -dodecane, iso-octane, and 1,3,5-trimethylbenzene, and mixtures have been formulated according to refs and , respectively.…”

Section: Resultsmentioning

confidence: 99%

Sooting Propensity Estimation of Jet Aviation Fuel Surrogates and Their n-Alkane Components by the Virtual Smoke Point Method

et al. 2020

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Section: Resultsmentioning

confidence: 99%

Sooting Propensity Estimation of Jet Aviation Fuel Surrogates and Their n-Alkane Components by the Virtual Smoke Point Method

et al. 2020

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“…The properties of a surrogate fuel should be as close to those of a real fuel as possible. For this purpose, major properties relevant to combustion characteristics are considered, which are called here as combustion property targets (CPTs). − In this work, four major properties such as H/C ratio, molecular weight, derived cetane number (DCN), and threshold soot index (TSI) are selected as CPTs to maintain the combustion characteristics of a real fuel. Laminar flame speed and the other properties (e.g., Wobbe index) are not considered in this work, where the study is focused on ignition and the initial oxidation process.…”

Section: Methodologiesmentioning

confidence: 99%

Ignition Delay Time and Oxidation of a Kerosene Aviation Fuel and a Blended Jet50-Bio50 Fuel

et al. 2021

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Ignition delay and oxidation of two jet aviation fuels, Jet A-1 and its blended fuel with a bio-jet fuel in half, are investigated by experiments and numerical simulations. From their major combustion properties, derived cetane number and molecular weight of the blended fuel, Jet50-Bio50, are higher than those of Jet A-1, and its H/C ratio and threshold sooting index are lower because more n-alkanes are contained in a bio-jet fuel and aromatic compounds are not. The surrogate fuels of the two jet fuels are constructed for numerical simulations of their ignition and oxidation. Early ignition of the blended fuel measured in a shock tube experiment is investigated by comparing the speciation profiles of several products from the two fuels, and their global reactivity is measured in a laminar flow reactor. Oxidation of the blended fuel is initiated at a lower temperature than Jet A-1, and reaction pathways of the two fuels are analyzed at two temperatures of 600 and 1100 K, respectively. At a low temperature of 600 K, reaction pathways of the major surrogate components for the two fuels are significantly different, while they are almost the same at high temperatures. The active radical of OH is produced more by the oxidation of Jet50-Bio50, and its oxidation is initiated at a lower temperature than Jet A-1, leading to earlier ignition. At low temperatures, the difference between initiation times of oxidation of the two fuels is much larger than at high temperatures. At both temperatures, production rates of the major reaction steps, where OH is produced, are higher in Jet50-Bio50 than in Jet A-1.

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“…Shock tubes are a traditional tool for studying various high-temperature processes, including measuring the radiation characteristics of shock-heated gases [12,13], determining the rate constants of chemical reactions [14,15], and measuring the ignition delay times in high-temperature combustible mixtures [16][17][18]. Despite the significant progress in the study of the combustion of propane under various conditions, experimental studies on the study of the characteristics of its ignition of propane are still taking place [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Ignition of Propane–Oxygen–Argon Mixtures in a Shock Tube at A Pressure of 30 Atm

Козлов

Gerasimov

Levashov

et al. 2021

Russ. J. Phys. Chem. B

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The ignition delay times are measured in propane-oxygenl mixtures strongly diluted with argon. The experiments are carried out in a shock tube behind the front of the reflected shock wave in the temperature range T = 1250-1770 K at pressure p = 30 atm and the following values of the excess fuel ratios: φ = 0.5, 1.0, and 2.0. It is shown that, in the region of the studied temperatures, the ignition delay time in propane increases with an increase in φ. The obtained data are compared with the results of other measurements, which shows that at low temperatures (T ≤ 1000 K) the dependence of the ignition delay time on φ has the opposite character.

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Ignition delay time and sooting propensity of a kerosene aviation jet fuel and its derivative blended with a bio-jet fuel

Cited by 25 publications

References 16 publications

Sooting Propensity Estimation of Jet Aviation Fuel Surrogates and Their n-Alkane Components by the Virtual Smoke Point Method

Sooting Propensity Estimation of Jet Aviation Fuel Surrogates and Their n-Alkane Components by the Virtual Smoke Point Method

Ignition Delay Time and Oxidation of a Kerosene Aviation Fuel and a Blended Jet50-Bio50 Fuel

High-Temperature Ignition of Propane–Oxygen–Argon Mixtures in a Shock Tube at A Pressure of 30 Atm

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