Impact of nozzle holes configuration on fuel spray, wall impingement and NOx emission of a diesel engine for biodiesel–diesel blend (B20)

Lahane, Subhash; Subramanian, K.A.

doi:10.1016/j.applthermaleng.2013.12.048

Cited by 101 publications

(36 citation statements)

References 25 publications

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“…Hegde and Sreenivas (2012) observed increased brake thermal efficiency and reduced specific fuel consumption while working with the same fuel. Similarly, Lahane and Subramanian (2014) observed better engine performance parameters and lower emissions with B20 (blend ratio of 20% of Punnai oil biodiesel and 80% of neat diesel fuel). Moreover, the investigation carried out by Saravanan, Nagarajan, and Puhan (2010) on direct injection (DI) diesel engine fuelled with pure Mahua oil methyl ester (B100) and neat diesel (B0) revealed that the emission characteristics were low for B100 when compared to that of B0.…”

Section: Introductionmentioning

confidence: 70%

Combustion characteristics of a DI diesel engine fuelled with blends of methyl ester of cotton seed oil

Vijayaraj

Sathiyagnanam

2015

International Journal of Ambient Energy

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Section: Introductionmentioning

confidence: 70%

Combustion characteristics of a DI diesel engine fuelled with blends of methyl ester of cotton seed oil

Vijayaraj

Sathiyagnanam

2015

International Journal of Ambient Energy

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“…Fuel injection process plays a major role in many aspects of combustion performance. The influence of nozzle structure is remarkable on the atomization performance [19][20][21][22]. With the progress of technology [23], it is found that the properties of breakup morphology and fragment distribution in different regimes are different [24][25][26][27][28].…”

Section: Primary Atomizationmentioning

confidence: 99%

“…The breakup regimes of slurry jet. ω km =ω Rm ¼ 1: (20) Atomization of viscoelastic liquids is widely known to be more difficult to atomize than typical Newtonian liquids [18,[132][133][134][135][136][137][138]. The addition of viscoelasticity is found to stabilize the rim of liquid.…”

Section: Complex Fluidsmentioning

confidence: 99%

Breakup Morphology and Mechanisms of Liquid Atomization

Zhao¹,

Liu²

2020

Environmental Impact of Aviation and Sustainable Solutions

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Fuel atomization, the transformation of bulk liquid into sprays, is of importance in jet engines. In this chapter, we will introduce the latest research advances on breakup morphology and mechanism of liquid atomization. On primary atomization, based on the morphological difference, the twin-fluid atomization could be classified into different regimes. The influence of Kelvin-Helmholtz and Rayleigh-Taylor instability on breakup morphology and fragment size is great and nonmonotonic. On secondary atomization, Rayleigh-Taylor instability is considered as the main driving mechanism in different bag-breakup modes; for higher Weber number, it will be in concurrence with the shear instability. Based on ligamentmediated spray formation model, ligament breakup is found to be well represented by the gamma distributions. Atomization of complex fluids has special characteristics and mechanisms. There are also a lot of research advances recently in this field.

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“…The spray of HE30 impinged upon the wall earlier as it penetrated slightly faster than regular diesel. The wall impingement increase the HC, CO and NO x emissions of a diesel engine [40,41]. Therefore, the hydrous ethanol diesel emulsion, such as HE30, increases the chance of wall impingement, which is an issue to be considered for diesel engines burning the bio-ethanol fuels.…”

Section: Crp Theorymentioning

confidence: 99%

Spray Combustion Characteristics and Soot Emission Reduction of Hydrous Ethanol Diesel Emulsion Fuel Using Color-Ratio Pyrometry

Zhang

et al. 2017

Energies

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To elucidate the relationship between physicochemical properties, spray characteristics, and combustion performance, a series of experiments have been conducted in a constant volume vessel with injection of hydrous ethanol diesel emulsion and regular diesel. HE30 (emulsion with 30% volume fraction of 20% water-containing ethanol and 70% volume fraction of 0# diesel) is developed using Shah's technique and regular diesel is also employed for comparison. Firstly, the physicochemical properties of two kinds of fuels are investigated. Then, the non-evaporating and evaporating spray characteristics are examined through the high-speed shadowgraphs. Finally, spray combustion experiments under different ambient oxygen concentrations are carried out, and color-ratio pyrometry (CRP) is applied to measure the flame temperature and soot concentration (KL) distributions. The results indicate that the physicochemical properties, such as density, surface tension, kinematic viscosity, cetane number, and oxygen content, have significant impact on the spray mixture formation and combustion performance. HE30 exhibits lower soot emissions than that of regular diesel. Further analysis supports the standpoint that the hydrous ethanol diesel emulsion can suppress the soot and NO x simultaneously. Therefore, the hydrous ethanol diesel emulsion has great potential to be an alternative clean energy resource.

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Impact of nozzle holes configuration on fuel spray, wall impingement and NOx emission of a diesel engine for biodiesel–diesel blend (B20)

Cited by 101 publications

References 25 publications

Combustion characteristics of a DI diesel engine fuelled with blends of methyl ester of cotton seed oil

Combustion characteristics of a DI diesel engine fuelled with blends of methyl ester of cotton seed oil

Breakup Morphology and Mechanisms of Liquid Atomization

Spray Combustion Characteristics and Soot Emission Reduction of Hydrous Ethanol Diesel Emulsion Fuel Using Color-Ratio Pyrometry

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