Experimental study of the spray characteristics of biodiesel based on inedible oil

Gao, Yuan; Deng, Jun; Li, Chunwang; Dang, Fengling; Liao, Zhuo; Wu, Zhijun; Li, Liguang

doi:10.1016/j.biotechadv.2009.04.022

Cited by 126 publications

(59 citation statements)

References 4 publications

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“…The same behavior is observed when increasing injection pressure (Figure 10), and it has been observed also by other authors previously [25][26][27]. A possible explanation of this phenomenon could be related to the atomization efficiency.…”

Section: Spray Visualizationsupporting

confidence: 89%

Consequences of using biodiesel on the injection and air–fuel mixing processes in diesel engines

Salvador

Ruíz

Salavert

et al. 2012

Proceedings of the Institution of Mechanical Engineers, Part D:

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A study of the injection process and spray behavior has been made for three different fuels. In particular, blends of rapeseed methyl ester (RME) with standard diesel fuel at 5% and 30% of biodiesel have been used for the current study, as well as pure RME.Hydraulic characterization of an 8-hole nozzle has been carried out using these three fuels, in order to explore and analyze the influence of fuel properties on mass flow rate and momentum flux at the nozzle exit. Additionally, spray visualization tests have been made in order to get information about spray cone angle, which allows the characterization of air-fuel mixing process. Finally, a theoretical derivation has been used to obtain further details of the microscopic characteristics of the spray and compare air-fuel mixing efficiency for the different biodiesel blends.

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Section: Spray Visualizationsupporting

confidence: 89%

Consequences of using biodiesel on the injection and air–fuel mixing processes in diesel engines

Salvador

Ruíz

Salavert

et al. 2012

Proceedings of the Institution of Mechanical Engineers, Part D:

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“…Since BDE20 has lower Geo et al [26] kinematic viscosity than 100B, the former has lower SMD. Figure 8 illustrate the SMD of the biodiesel fuel verses injected fuel temperature for different engine speeds.…”

Section: Effect Of Density and Viscosity On The Fuel Filter Pump Prementioning

confidence: 96%

“…As a result the tendency of evaporation of fuel decreases and this might decrease the performance of the engine and increase the emissions. Geo et al [26] compared the SMD corresponding to diesel, B5, B10, B20 and B100 of Jatropha oils blends. Their results show that the SMD gradually increases with increasing blend ratio of the biodiesel and they concluded the kinematic viscosity to be the major factor for this.…”

Section: Effect Of Density and Viscosity On The Fuel Filter Pump Prementioning

confidence: 99%

Prediction models for density and viscosity of biodiesel and their effects on fuel supply system in CI engines

Tesfa¹,

Mishra²,

Gu³

et al. 2010

Renewable Energy

194

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Biodiesel is a promising non-toxic and biodegradable alternative fuel used in the transport sector. Nevertheless, the higher viscosity and density of biodiesel poses some acute problems when it is used it in unmodified engine. Taking this into consideration, this study has been focused towards two objectives. The first objective is to identify the effect of temperature on density and viscosity for a variety of biodiesels and also to develop a correlation between density and viscosity for these biodiesels. The second objective is to investigate and quantify the effects of density and viscosity of the biodiesels and their blends on various components of the engine fuel supply system such as fuel pump, fuel filters and fuel injector. To achieve first objective density and viscosity of rapeseed oil biodiesel, corn oil biodiesel and waste oil biodiesel blends (0B, 5B, 10B, 20B, 50B, 75B, and 100B) were tested at different temperatures using EN ISO 3675:1998 and EN ISO 3104:1996 standards. For both density and viscosity new correlations were developed and compared with published literature. A new correlation between biodiesel density and biodiesel viscosity was also developed. The second objective was achieved by using analytical models showing the effects of density and viscosity on the performance of fuel supply system. These effects were quantified over a wide range of engine operating conditions. It can be seen that the higher density and viscosity of biodiesel have a significant impact on the performance of fuel pumps and fuel filters as well as on air-fuel mixing behaviour of compression ignition (CI) engine.

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“…However, spray tip penetration was little influenced by the biodiesel mixing ratio. Gao et al [22] compared experimental and simulated spray characteristics results, including the macroscopic and microscopic spray properties of three different biodiesels and blends. The authors concluded that with increasing concentration of biodiesel in the fuel, spray penetration and spray speed increased, while the spray cone angle decreased.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on the Macroscopic Spray Characteristics of Biodiesel and Diesel in a Constant Volume Chamber

et al. 2015

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Abstract:The objective of this study was to investigate the macroscopic spray characteristics of different 0%-100% blends of biodiesel derived from drainage oil and diesel (BD0, BD20, BD50, BD80, BD100), such as spray tip penetration, average tip velocity at penetration, spray angle, average spray angle, spray evolution process, spray area and spray volume under different injection pressures (60, 70, 80, 90, 100 MPa) and ambient pressures (0.1, 0.3, 0.5, 0.7, 0.9 MPa) using a common rail system equipped with a constant volume chamber. The characteristic data was extracted from spray images grabbed by a high speed visualization system. The results showed that the ambient pressure and injection pressure had significant effects on the spray characteristics. As the ambient pressure increased, the spray angle increased, while the spray tip penetration and the peak of average tip velocity decreased. As the injection pressure increased, the spray tip penetration, spray angle, spray area and spray volume increased. The increasing blend ratio of biodiesel brought about a shorter spray tip penetration and a smaller spray angle compared with those of diesel. This is due to the comparatively higher viscosity and surface tension of biodiesel, which enhanced the friction effect between fuel and the injector nozzle surface and inhibited the breakup of the liquid jet.

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Experimental study of the spray characteristics of biodiesel based on inedible oil

Cited by 126 publications

References 4 publications

Consequences of using biodiesel on the injection and air–fuel mixing processes in diesel engines

Consequences of using biodiesel on the injection and air–fuel mixing processes in diesel engines

Prediction models for density and viscosity of biodiesel and their effects on fuel supply system in CI engines

An Experimental Study on the Macroscopic Spray Characteristics of Biodiesel and Diesel in a Constant Volume Chamber

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