Investigation of kerosene supersonic combustion performance with hydrogen addition and fuel additive at low Mach inflow conditions

Luo, Fa; Song, Wenyan; Chen, Wenjuan; Long, Yaosong

doi:10.1016/j.fuel.2020.119139

Cited by 15 publications

(3 citation statements)

References 30 publications

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“…Aviation kerosene hydrogenation technology was an important method for improving oil quality [1][2][3][4]. The process of hydrogenation was to transform the impurities especially for S and O in raw oil into the corresponding hydrocarbons such as H 2 S and H 2 O under certain pressure, temperature, reacting space velocity and hydrogen-oil ratio conditions [5].…”

Section: Introductionmentioning

confidence: 99%

Study on failure evolution of 15CrMo steel used for aviation kerosene hydrogenation unit

Liu

Wang

Cui

et al. 2023

Mater. Res. Express

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In aviation kerosene hydrogenation unit, the 15CrMo steel with good resistance to hydrogen embrittlement performed obvious pitting corrosion with certain micro-cracks in H2/H2S environment. In this paper, the failure behavior of 15CrMo steel in H2/H2S environment had been studied using electrochemical method and microscopic morphology. The results showed that within 10 days, the 15CrMo steel performed good resistance with a smaller max pit depth (15.48 μm on the 10th day) in H2/H2S environment, proved by the passivation zone (-0.75~-0.62 V on 10th day). Furthermore, 15CrMo steel exhibited activated corrosion with a significantly increasing max pit depth and corrosion current density, especially, reaching 131.91 μm and 17.29 μA/m2 on 30th day. Moreover, the stress corrosion cracking caused by H2S appeared on 30th day.

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Section: Introductionmentioning

confidence: 99%

Study on failure evolution of 15CrMo steel used for aviation kerosene hydrogenation unit

Liu

Wang

Cui

et al. 2023

Mater. Res. Express

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“…NASA proposed the concept of struts [9], which work well for improving mixing: the tip of wedge-shaped struts can induce shock waves which can effectively promote the mixing of fuel and air and the rear end of struts can form a small backflow area to facilitate the mixing [10,11]. Besides the above injection and flow-path innovation, some researchers study the flow parameters or boundary conditions of the combustor to find out the optimal flow conditions [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Supersonic Combustion Modeling and Simulation on General Platforms

et al. 2022

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Supersonic combustion is an advanced technology for the next generation of aerospace vehicles. In the last two decades, numerical simulation has been widely used for the investigation on supersonic combustion. In this paper, the modeling and simulation of supersonic combustion on general platforms are thoroughly reviewed, with emphasis placed on turbulence modeling and turbulence–chemistry interactions treatment which are both essential for engineering computation of supersonic combustion. It is found that the Reynolds-averaged Navier–Stokes methods on the general platforms have provided useful experience for the numerical simulation in engineering design of supersonic combustion, while the large eddy simulation methods need to be widely utilized and further developed on these platforms. Meanwhile, the species transport models as a kind of reasonable combustion model accounting for the turbulence–chemistry interactions in supersonic combustion have achieved good results. With the development of new combustion models, especially those designed in recent years for high-speed combustion, the turbulence–chemistry interactions treatment for numerical simulation of supersonic combustion based on general platforms is expected to be further mature in the future.

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“…Kindracki et al [5] controlled the combustion process via regulating the hydrogen blending ratio. In addition, hydrogen is also helpful for the evaporation of kerosene and the following heat-release process [6]. Some investigations analyzed the combustion performance based on engine experiments.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Ignition Delay Time of Kerosene Premixed Combustion in an SI Engine

2022

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SI engines are installed widely in small aircrafts as they have good fuel economy. Currently, these SI engines are fueled with gasoline, although their safety can be improved if kerosene is used. However, the combustion performance of kerosene cannot fulfil the requirements due to the differences in physicochemical properties. This study investigates the ignition delay time of kerosene at a pressure range of 15–35 bar and a temperature range of 600–1000 K. A detailed chemical reaction mechanism is employed for the premixed combustion process. Under the initial conditions of 1000 K and 35 bar, with an equivalence ratio of 1, the total ignition delay time of kerosene is 0.401 ms. The NTC range of kerosene is determined as roughly 750–920 K. Subsequently, the chemical reaction paths with an equivalence ratio of 0.8, 1, and 1.2 and an initial pressure of 15, 20, and 25 bar were analyzed. The rate-determined elementary reactions were obtained based on a sensitivity analysis. The difference between kerosene and gasoline are also compared, and the rate-determining reactions that affect the ignition of kerosene and gasoline are discussed. The results of this study can provide a reference for the combustion performance improvement and knock suppression of SI engines fueled with kerosene.

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Investigation of kerosene supersonic combustion performance with hydrogen addition and fuel additive at low Mach inflow conditions

Cited by 15 publications

References 30 publications

Study on failure evolution of 15CrMo steel used for aviation kerosene hydrogenation unit

Study on failure evolution of 15CrMo steel used for aviation kerosene hydrogenation unit

Supersonic Combustion Modeling and Simulation on General Platforms

Numerical Investigation of the Ignition Delay Time of Kerosene Premixed Combustion in an SI Engine

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