Numerical Simulation of the Evolution of the Soot Particle Size Distribution in a DI Diesel Engine Using an Emulsified Fuel of Diesel-Water

Weber, J.; Peters, N.; Bockhorn, Henning; Pittermann, Roland

doi:10.4271/2004-01-1840

Cited by 18 publications

(6 citation statements)

References 21 publications

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“…There are also significant researches of WiDE for CI engine application by numerical and mathematical modeling. These studies can be broadly categorized into modeling water-in-diesel spray with a focus on the microexplosion, droplet break-up and autoignition [ 12 , 36 – 40 ]; heat release and engine performance modeling of combustion [ 41 , 42 ] and emission formation modeling [ 43 , 44 ].…”

Section: Methodologies Used In Water-in-diesel Emulsion Studymentioning

confidence: 99%

Current Trends in Water-in-Diesel Emulsion as a Fuel

Khan

Karim

Hagos

et al. 2014

The Scientific World Journal

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Water-in-diesel emulsion (WiDE) is an alternative fuel for CI engines that can be employed with the existing engine setup with no additional engine retrofitting. It has benefits of simultaneous reduction of both NOx and particulate matters in addition to its impact in the combustion efficiency improvement, although this needs further investigation. This review paper addresses the type of emulsion, the microexplosion phenomenon, emulsion stability and physiochemical improvement, and effect of water content on the combustion and emissions of WiDE fuel. The review also covers the recent experimental methodologies used in the investigation of WiDE for both transport and stationary engine applications. In this review, the fuel injection pump and spray nozzle arrangement has been found to be the most critical components as far as the secondary atomization is concerned and further investigation of the effect of these components in the microexplosion of the emulsion is suggested to be center of focus.

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Section: Methodologies Used In Water-in-diesel Emulsion Studymentioning

confidence: 99%

Current Trends in Water-in-Diesel Emulsion as a Fuel

Khan

Karim

Hagos

et al. 2014

The Scientific World Journal

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“…The 3-phase emulsion is prepared using methods such as phase transfer, mechanical stirring and two-step emulsion. The two-step emulsified technology is widely used for O/W/O emulsions and has been reported in many studies [22][23][24][25]. A 2-phase oil/water (O/W) emulsified oil is first prepared using hydrophilic additives and then a 3-phase emulsion is formed using lipophilic surfactant.…”

Section: Introductionmentioning

confidence: 99%

Comparison of NOx and Smoke Characteristics of Water-in-Oil Emulsion and Marine Diesel Oil in 400-kW Marine Generator Engine

et al. 2019

Energies

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Currently, the exhaust gas of a ship is regulated for nitrogen oxides and sulphur compounds; however, there is no IMO regulation on smoke under discussion. This study investigated the reduction of exhaust gas through ship emulsion fuel, which can simultaneously reduce nitrogen oxides and smoke in ship engines before smoke regulations are established. The combustion and exhaust characteristics were investigated according to the moisture content of emulsion fuel using a 400-kW generator engine. As the water content of the emulsion and the temperature of the combustion chamber increase, micro explosion increases and the combustion period decreases. The nitrogen oxide and smoke from the emulsion fuel used in this study decreased by 7% and 75%, respectively. The nitrogen oxides and soot reductions obtained by the use of emulsion fuel were boosted by micro-explosion of water contained in the fuel during combustion.

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“…[2][3][4] conservation equations for the moments of the soot PSDF were formulated for the RIF model. In a further development the sectional method [13] was employed in a post-process step to calculate the soot PSDF on a grid cell basis. The reaction rates needed for calculating soot precursor formation and soot surface processes were determined using spatially averaged species concentrations obtained from the RIF calculation.…”

Section: Introductionmentioning

confidence: 99%