Investigation of Needle Motion Profile Effect on Diesel Spray in Near-Nozzle Field

Gao, Ya; Huang, Weidi; Pratama, Raditya Hendra; Gong, Haiqing; Wang, Jin

doi:10.3390/mi13111944

Cited by 2 publications

(1 citation statement)

References 33 publications

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“…The properties of fuels play a crucial role in influencing both the formation of fuel-air mixtures and the subsequent combustion processes within ICEs. On one hand, changes in fuel properties can lead to variations in needle valve movement, liquid core breakup, and spray characteristics [20][21][22][23][24]. Furthermore, the composition, volatility, density, viscosity, and other physical and chemical properties of fuels have a direct impact on how effectively they mix with air, the stability of the resulting mixture, and the characteristics of the combustion process [25,26].…”

Section: Articlementioning

confidence: 99%

Investigation on Fuel Properties of Synthetic Gasoline-like Fuels

Huang,

Koichi,

Yohko

et al. 2024

IJAMM

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Article Investigation on Fuel Properties of Synthetic Gasoline-like Fuels Weidi Huang 1,2, Koichi Kinoshita 1,*, Yohko Abe 1, Mitsuharu Oguma 1, and Kotaro Tanaka 2,3 1 Research Institute for Energy Conservation, National Institute of Advanced Industrial Science and Technology, 1-2-1 Namiki, Tsukuba, Ibaraki 305-8564, Japan 2 Carbon Recycling Energy Research Centre, Ibaraki University, 4-12-1 Nakanarusawa, Hitachi, Ibaraki 316-8511, Japan 3 Graduate School of Science and Engineering, Ibaraki University, 4-12-1 Nakanarusawa, Hitachi, Ibaraki 316-8511, Japan * Correspondence: koichi-kinoshita@aist.go.jp Received: 8 November 2023 Accepted: 25 March 2024 Published: 27 March 2024 Abstract: Synthetic fuels have gained considerable attention due to their promising characteristics. A comprehensive survey was undertaken to assess the availability of synthetic fuels in the global market, followed by an investigation to evaluate their potential in engines. This report presents the initial findings regarding the physical and chemical properties of synthetic gasoline-like fuels, specifically DMC (dimethyl carbonate), bioethanol, EtG (ethanol-to-gasoline), G40, and bio-naphtha. A comparison was conducted between these synthetic fuels and conventional gasoline. Furthermore, discussions were provided to enhance the understanding of the potential influence of fuel properties on spray and combustion characteristics. EtG and G40 are specifically designed to emulate conventional gasoline. Results indicate that EtG and gasoline should be directly interchangeable in the engine or blended in any proportion because they have almost identical Research Octane Number (RON)/Motor Octane Number (MON), fuel density, and higher heating value (HHV). G40 has a higher RON (105) compared with that of gasoline (92.2), likely resulting from the high content of iso-paraffin in G40. Bio-naphtha exhibits the high fraction of paraffin and naphthene content relative to other fuels. The feature of chemical compositions results in a lower RON (55.9), lower HHV and smaller fuel density compared to other fuels. DMC and bioethanol blends in gasoline were investigated. Regardless of whether DMC or bioethanol is incorporated, under a 60% blend ratio, gasoline distillation accelerates initially, until DMC or bioethanol completely evaporates, after which gasoline distillation returns to its normal rate. With increasing the volumetric fraction of the ethanol in the blends, either chemical compositions or the RON/HHV basically change linearly.

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Section: Articlementioning

confidence: 99%

Investigation on Fuel Properties of Synthetic Gasoline-like Fuels

Huang,

Koichi,

Yohko

et al. 2024

IJAMM

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Multi-objective cooperation optimization research on dynamic response and energy loss of high-speed solenoid valve for diesel engine injector

Yu,

Zhao,

Wei

2023

International Journal of Applied Electromagnetics and Mechanics

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The dynamic response and operational reliability of high-speed solenoid valve (HSV) for diesel engine injector are the main indicators to measure their performance. At high-frequency, the eddy current energy and Joule energy generated by the HSV will be converted into heat, which has a significant impact on the service life of HSV. The optimization of HSV involves the interaction between energy loss and the dynamic response of HSV. To optimize the HSV dynamic response time considering energy loss, the HSV work process simulation model was established in this paper, and the model was verified based on armature lift experimental data. Without changing the structural parameters of the HSV, the four parameters of electroconductibility, spring stiffness, damping coefficient, and coil resistance were selected as the key parameters affecting the dynamic response and energy loss. The response surface models (RSMs) of opening response time, closing response time, eddy current energy and Joule energy of the HSV were constructed by using the smoothing spline-analysis of variance method. The multi-objective cooperation optimization of HSV under the interaction of dynamic response characteristics and energy loss was completed by using non-dominated sorting genetic algorithms. After optimization, the opening and closing response times of HSV were reduced by 15.1% and 16.6% respectively, while the eddy current energy and Joule energy were reduced by 5.2% and 48.4% respectively. In this paper, the dynamic response and energy loss were jointly optimized. The presented results provide theory instruction for multi-objective cooperative optimization of HSV.

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Investigation of Needle Motion Profile Effect on Diesel Spray in Near-Nozzle Field

Cited by 2 publications

References 33 publications

Investigation on Fuel Properties of Synthetic Gasoline-like Fuels

Investigation on Fuel Properties of Synthetic Gasoline-like Fuels

Multi-objective cooperation optimization research on dynamic response and energy loss of high-speed solenoid valve for diesel engine injector

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