Experimental investigation on wall film ratio of diesel, butanol/diesel, DME/diesel and gasoline/diesel blended fuels during the spray wall impingement process

Yu, Hanzhengnan; Liang, Xingyu; Shu, Gequn; Sun, Xiuxiu; Zhang, Hongsheng

doi:10.1016/j.fuproc.2016.09.029

Cited by 39 publications

(10 citation statements)

References 34 publications

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“…The blended mixture in the tank were premixed and transported to the injector by a high oil pump and the injection pressure can be controlled between 0 MPa-300 MPa by adjusting the solenoid valve opening. More details about this part of the system can be found in Reference [30]. After the injection, the plate surface with a fuel film will be measured by using the oil film sensor from Infralytic, which was illustrated in Figure 1b.…”

Section: Experimental Apparatus and Materialsmentioning

confidence: 99%

“…In our previous study [30], we defined the adhering fuel ratio (ε) on the dry wall condition as Equation (2).…”

Section: Experimental Conditionsmentioning

confidence: 99%

“…After fuel impinging, some droplets will splash off the wall and some fuel will adhere to the plate, which affects the evaporation speed and mixture concentration distribution near the wall directly. In our previous study [30], we defined the adhering fuel ratio (ε) on the dry wall condition as Equation (2).…”

Section: Longitudinal Section Profiles Of Adhered Fuel Filmmentioning

confidence: 99%

“…In our previous work [30][31][32], we have studied the effect of the injection parameters, ambient parameters, and fuel characteristics on the impingement process and adhered film distribution. However, according to the analysis above, the surface condition of the impinged wall also plays a significant role in droplets' adhesion and splashing.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation on Effect of Wall Roughness and Lubricant Film on the Adhered Fuel Film of N-Butanol-Diesel Blends after Spray Impingement

et al. 2018

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Abstract:The effect of wall roughness with different lubricant film thicknesses on the characteristics of adhered fuel films of diesel-n-butanol blending fuels after spray impingement has been investigated. Four steel plates with different types of roughness (root mean square height-Sq) that were coated with different lubricant film thicknesses (h l ) were used as impinged walls. The experimental conditions included dry walls (h l = 0), semi-wetted walls (SWW) with different thin oil films (0 < h l /Sq < 1), and fully wetted walls (FWW) with a thick lubricant film (h l > Sq). The results indicate that the adhered fuel mass ratio (ε) of blended fuel with 25% n-butanol (B25) was higher than that of blended fuel with 15% n-butanol (B15) under the same conditions. ε increased with an increase in Sq on the dry walls, but, under SWW conditions, it decreased with an increase in oil film thickness. The fuel film morphology was almost unaffected by the change in Sq, but the results implied that the roughness parameter-Skewness (Ssk) exerted a greater impact. The mean thickness h a and accumulated diameter D l of the adhered fuel film increased with an increase in h l , but, under FWW conditions, the effect of the roughness on the adhered film's features was insignificant.

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Section: Experimental Apparatus and Materialsmentioning

confidence: 99%

“…In our previous study [30], we defined the adhering fuel ratio (ε) on the dry wall condition as Equation (2).…”

Section: Experimental Conditionsmentioning

confidence: 99%

Section: Longitudinal Section Profiles Of Adhered Fuel Filmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation on Effect of Wall Roughness and Lubricant Film on the Adhered Fuel Film of N-Butanol-Diesel Blends after Spray Impingement

et al. 2018

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“…Both Cheng et al 26 and Schulz and colleagues 27,28 conducted experimental studies on fuel adhesion using the laserinduced fluorescence (LIF) technique. Yu and colleagues 29,30 evaluated the impingement characteristic and weighed the fuel adhesion to investigate the impingement process.…”

Section: Introductionmentioning

confidence: 99%

Effect of spray impingement distance on piston top fuel adhesion in direct injection gasoline engines

Luo

Nishida

Uchitomi

et al. 2018

International Journal of Engine Research

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Direct injection is an attractive technology for improving fuel economy and engine performance in gasoline engines. However, the adhered fuel formed on the piston surface has significant influence on the combustion efficiency and emissions. To obtain a better understanding of fuel adhesion, this work involved investigation of the spray and impingement on a flat wall through a mini-sac injector with a single hole. Different impingement distances and injection pressures were investigated. The evolution of the impinging spray was obtained by the Mie scattering method. The refractive index matching method was applied to measure fuel adhesion. The mass, area, and thickness of adhesion under different conditions were compared. The experimental results show that the fuel adhesion on the wall increases significantly with a large impingement distance. Moreover, the maximum thickness increases and the thickness uniformity of the fuel adhesion declines under a large impingement distance condition.

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Study of combustion behaviors for dimethyl ether as an alternative fuel using CFD with detailed chemical kinetics

El-Din

Elkelawy

Kabeel

2017

Alexandria Engineering Journal

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Experimental investigation on wall film ratio of diesel, butanol/diesel, DME/diesel and gasoline/diesel blended fuels during the spray wall impingement process

Cited by 39 publications

References 34 publications

Experimental Investigation on Effect of Wall Roughness and Lubricant Film on the Adhered Fuel Film of N-Butanol-Diesel Blends after Spray Impingement

Experimental Investigation on Effect of Wall Roughness and Lubricant Film on the Adhered Fuel Film of N-Butanol-Diesel Blends after Spray Impingement

Effect of spray impingement distance on piston top fuel adhesion in direct injection gasoline engines

Study of combustion behaviors for dimethyl ether as an alternative fuel using CFD with detailed chemical kinetics

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