Effect of the injection parameters on diesel spray characteristics

Song, Kyu Jeong; Sim, Sang Cherl; Jung, Byuong Koog; Kim, Hyung Gon; Kim, Jang Heon

doi:10.1007/bf02984052

Cited by 6 publications

(5 citation statements)

References 8 publications

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“…Phase 2 is the deceleration stage with stable spray angle. This tendency is consistent with other studies [28], [29]. Figure 5 also shows that HVO has a larger spray angle than B7 from 0.2 degrees to 1.1 degrees.…”

Section: The Angle Development Of Fuel Spraysupporting

confidence: 92%

Spray Visualization of Hydrotreated Vegetable Oil Under Simulated Diesel Engine Condition

Chau¹

2020

jst-iuh

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The diversity of alternative fuels and the corresponding variation in their physical and chemical properties, coupled with simultaneous changes in advanced techniques for CI-engine, needed to improve engine efficiency and emissions. Hydrotreated Vegetable Oil (HVO), seen as a promising substitution for petrol-diesel, and diesel fuel (mixed of 7% palm-biodiesel or B7) were analyzed on fuel properties. Then, the influence of these fuel properties on spray characteristics in constant volume combustion chamber were evaluated under conditions of single hole injector of 200m diameter, injection pressure of 100MPa, constant back pressure of 4.0MPa and energizing time of 2.5ms. The results show that HVO had smaller in viscosity (18.48%), density (5.52%), sulfur content, distillation under T50, T90 and higher in derived cetane index (27.2%), heating value (2.2%), respectively, compared to diesel. Spray characteristics of HVO had the same propensity with diesel fuel. HVO revealed a slightly shorter in penetration length (5%) during fully developed zone, a larger spray cone angle (from 0.2 to 1.1 degree wider in quasi-steady state). Both fuels had a similar maximum spray velocity reaching at 5mm to 10mm from nozzle orifice. Also observed was an increase in spray volume of HVO.

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Section: The Angle Development Of Fuel Spraysupporting

confidence: 92%

Spray Visualization of Hydrotreated Vegetable Oil Under Simulated Diesel Engine Condition

Chau¹

2020

jst-iuh

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“…Split injection is the injection strategy which an amount of single injection was divided into equal halves, injected individually. These factors have been investigated in previous studies Payri et al, 2004;Song et al, 2005), and the relationship between combustion and emission characteristics and spray and atomization characteristics have been expound upon by many researchers (Park et al, 2003;Yi et al, 2003).…”

Section: Introductionmentioning

confidence: 98%

A study on the fuel injection and atomization characteristics of soybean oil methyl ester (SME)

Park

Kim

Suh

et al. 2009

International Journal of Heat and Fluid Flow

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“…2 shows the layout of the entire experimental setup. The experimental setup consists of a motor (1), couple (2), high pressure fuel pump (3), fuel filter (4), fuel supply pump (5), fuel tank (6), battery (7), common rail system (8), control unit (9), DAQ and control system (10), injector (11), combustion chamber (12), pressure transducer (13), thermocouples (14), pressure transducer cooling line (15), discharge valve (16), heater controller (17), combustion chamber heaters (18), fast response valve (FRV) (19), FRV actuator (20), pre-chamber (21), pre-chamber ceramic heater (22), inlet valve (23), relief valve (24), pressure gauge (25), valve (26), pressurized air tanks (27) and pressure regulator (28).…”

Section: Methodsmentioning

confidence: 99%

Visualization of Gas-to-Liquid (GTL) Fuel Liquid Length and Soot Formation in the Constant Volume Combustion Chamber

Azimov

Kim

2008

JTST

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In this research, GTL spray combustion was visualized in an optically accessible quiescent constant-volume combustion chamber. The results were compared with the spray combustion of diesel fuel. Fast-speed photography with direct laser sheet illumination was used to determine the fuel liquid-phase length, and shadowgraph photography was used to determine the distribution of the sooting area in the fuel jet. The results showed that the fuel liquid-phase length of GTL fuel jets stabilized at about 20-22mm from the injector orifice and mainly depended on the ambient gas temperature and fuel volatility. GTL had a slightly shorter liquid length than that of the diesel fuel. This tendency was also maintained when multiple injection strategy was applied. The penetration of the tip of the liquid-phase fuel during pilot injection was a little shorter than the penetration during main injection. The liquid lengths during single and main injections were identical. In the case of soot formation, the results showed that soot formation was mainly affected by air-fuel mixing, and had very weak dependence on fuel volatility.

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Effect of the injection parameters on diesel spray characteristics

Cited by 6 publications

References 8 publications

Spray Visualization of Hydrotreated Vegetable Oil Under Simulated Diesel Engine Condition

Spray Visualization of Hydrotreated Vegetable Oil Under Simulated Diesel Engine Condition

A study on the fuel injection and atomization characteristics of soybean oil methyl ester (SME)

Visualization of Gas-to-Liquid (GTL) Fuel Liquid Length and Soot Formation in the Constant Volume Combustion Chamber

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