An Experimental Study on Spray Characteristics of Diesel and Bio-diesel Fuel

Kim, Jaeduk; Ainull, Ghurri; Song, Kedong; Jung, Jae-Yeon; Kim, Hyung-Gon

doi:10.5916/jkosme.2011.35.1.053

Cited by 19 publications

(3 citation statements)

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“…To understand the characteristics and the difference of the fuel used in the existing common-rail engine and biodiesel is most necessary in the improvement of biodiesel. 7-9 Eom, et al 7 have conducted the study on the effect on the spray characteristics and the combustion, and the characteristics of the exhaust gas by setting the concentration of biodiesel and the mixture amount of ethanol as the variables, and Kim, et al 8 have considered the effect on the spray characteristics by adding biodiesel in existing fuel in the experimental profile. In addition, Park, et al 9 have conducted the study on the effect on an engine in accordance with the application of biodiesel.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of breakup process of biodiesel fuel spray

Yeom

Jung

2015

Int. J. Precis. Eng. Manuf.

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In this study, the experiments and the numerical analysis were performed in order to compare the spray behavior characteristics of diesel and biodiesel, which was intend to compare the spray tip penetration, the spray cone angle and the average droplet diameter. Diesel, palm oil biodiesel, waste cooking oil biodiesel, and soybean oil biodiesel were used for preparing blended fuel, and the ratios of the blended fuel were varied in the BD(Biodiesel)3~BD100 range. The injection pressures (∆p inj ) was considered as an experimental variable and was set to 500 bar, 1000 bar, 1500 bar, and 1600 bar by setting injection duration to 500 µs. In the numerical analysis, the initial droplet diameter was set equally with the diameter of hole, and overall numerical analysis condition was based on the experiments. Consequently, it was found that the change of average droplet diameter did not show the large difference according to fuel mixing ratio, and then the spray tip penetration highly depends on the spray pressure rather than the mixing ratio of the fuels.

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Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of breakup process of biodiesel fuel spray

Yeom

Jung

2015

Int. J. Precis. Eng. Manuf.

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“…Concerning previous studies on the application of biodiesel fuel, Kim et al [10] experimented to determine the spray characteristics of a common high-pressure rail fuel-injection engine, by measuring temperature and pressure at the front and rear of the filter, the spray angle, and the spray travel distance compared to that of pure diesel. They reported that the spray angle was slightly larger at the beginning of the spray regardless of the pressure, and that the mixed fuel has a small size, because of its viscosity and surface tension.…”

Section: Introductionmentioning

confidence: 99%

Emission Characteristics under Diesel and Biodiesel Fueled Compression Ignition Engine with Various Injector Holes and EGR Conditions

Kim¹,

Park

Cho

2020

Energies

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The combustion performance of a conventional rail diesel engine was investigated by measuring the exhaust gas with the respect to the number of injector holes, fuel type, and the use of exhaust gas recirculation (EGR), to provide a detailed reduction of environmental pollutants. It was found that a six- or seven-hole injector was more effective than a five-hole injector for reducing the exhaust gas. In addition, the mixing of 20% biodiesel oil with diesel most effectively reduced the HC and NOx contents. The technology generally reduced the NOx and CO contents of the exhaust, but had no significant effect on the HC and CO2 contents.

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“…The spray tip penetration among them means the maximum distance that fuel reaches from the nozzle tip, and the spray cone angle is the angle of the fuel sprayed, and the particle distribution means the distribution degree after the injection of fuel. As a related study, the shape of the spray and spray cone angle are observed macroscopically by adding biodiesel into existing diesel as an alternative fuel using the common-rail high pressure injection system (Kim, et al, 2011), and the spray tip penetration and the spray cone angle are observed through the optical system and PDA(Phase doppler anemometry) equipment according to the impressed voltage (Lee and Bae, 2010). As shown in the above previous research, the method that understands the spray behavior characteristics by experiments has the limit due to the time and cost.…”

Section: Introductionmentioning

confidence: 99%

Study of behavior characteristics of diesel fuel spray according to breakup models

Yeom

Jung

2015

JTST

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The atomization of the injection fuel in the diesel engine directly affects on the combustion process of engine, and as a result, it is the main factor that determines the operating performance of the engine. In this study, the breakup process of the droplets by the atomization of the injected was investigated, using the breakup models (Reitz&Diwakar, CAB, ETAB and TAB) included in the commercial numerical analysis program. In order to select the optimum model for the droplet breakup interpretation, the results of spray tip penetration, Sauter mean diameter (SMD) and momentum length obtained as each breakup model were compared with the experimental data. In the case of changing of the spray tip penetration as the research results, TAB model was measured the shorter compared to the experimental measurements, and other models showed the similarity with the experimental value. In the case of SMD analysis, the use of Reitz&Diwakar model showed the best results. In addition, the frequency of breakup which is the microscopic spray behavior characteristics considering the impact of the coefficient of contraction in the nozzle was investigated in order to determine the diameter of initial particle in the fuel injection necessary to the numerical analysis. As a result, it was found that there is suitable initial droplet diameter in numerical analysis, in the case of nozzle-hole diameter 0.12mm of this study, it was the most appropriate that the diameter of the initial particle for the numerical analysis is about 0.06mm.

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An Experimental Study on Spray Characteristics of Diesel and Bio-diesel Fuel

Cited by 19 publications

References 0 publications

Experimental and numerical analysis of breakup process of biodiesel fuel spray

Experimental and numerical analysis of breakup process of biodiesel fuel spray

Emission Characteristics under Diesel and Biodiesel Fueled Compression Ignition Engine with Various Injector Holes and EGR Conditions

Study of behavior characteristics of diesel fuel spray according to breakup models

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