Microexplosion of an emulsion droplet during Leidenfrost burning

Kadota, Toshikazu; Tanaka, Hajime; Segawa, Daisuke; Nakaya, Shinji; Yamasaki, Hiroshi

doi:10.1016/j.proci.2006.07.001

Cited by 68 publications

(23 citation statements)

References 25 publications

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“…8͒, is reduced for the nanoparticle blended jatropha biodiesel emulsion fuels than biodiesel emulsion fuel. 25,26 The hot-plate evaporation characteristic for the tested fuels is carried out from the setup utilized by Sadhik and Anand, 16 as shown in Fig. 15 The cylinder peak pressure for the JBDS15W at the full load observed is 83.7 bars compared to 72.3, 81.1, 79.5 and 77.5 bars for JBD, JBDS15W25A, JBDS15W50A, and JBDS15W100A, respectively.…”

Section: Resultsmentioning

confidence: 99%

Role of nanoadditive blended biodiesel emulsion fuel on the working characteristics of a diesel engine

Basha

Anand

2011

Journal of Renewable and Sustainable Energy

154

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Biodiesel emulsions are considered as the propitious alternative fuels for diesel engines. The need of biodiesel emulsion fuels for the diesel engines is to curtail the dependency on the fossil fuels in context to the world energy oil crisis. Henceforth, the present study provides a tangible pathway to prepare and to ameliorate the biodiesel emulsion fuel on incorporating potential alumina nanoparticles. The biodiesel emulsion fuel is prepared by emulsification technique comprising of 83% of jatropha biodiesel, 15% of water, and 2% of surfactants (Span80 and Tween80) with the aid of a mechanical agitator. The prepared biodiesel emulsion fuel is mixed with the alumina nanoparticles in the mass fractions of say 25, 50, and 100 ppm with the help of an ultrasonicator. The whole investigation is carried out in a constant speed diesel engine in three phases using jatropha biodiesel, jatropha biodiesel emulsion fuel, and alumina nanoparticle blended jatropha biodiesel emulsion fuels. The experimental results revealed a substantial enhancement in the performance and a reduction in harmful emissions for the biodiesel emulsion fuels compared to those of neat biodiesel. In addition, the incorporation of nanoparticles in the biodiesel emulsion fuel has also revealed an incremental better performance and reduced emissions than that of biodiesel emulsion fuel and biodiesel. Furthermore, the significance of shorten ignition delay effect associated with the nanoparticle blended biodiesel emulsion fuels has been investigated and asserted upon conducting a hot-plate evaporation study.

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Section: Resultsmentioning

confidence: 99%

Role of nanoadditive blended biodiesel emulsion fuel on the working characteristics of a diesel engine

Basha

Anand

2011

Journal of Renewable and Sustainable Energy

154

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“…The emulsion fuel drops are placed on a heated plate leading to the Leidenfrost effect. Recently, several researches have been conducted in this topic using Leidenfrost burning [11,[14][15][16]22]. A pipettor VWR with tip ejector (volume: 2-20 µL, precision: ≤1.5-0.3% and accuracy of ±1.0-0.6%) is used as a fuel droplet generator.…”

Section: Experimental Set-up and Proceduresmentioning

confidence: 99%

“…However, it is important to point out that the physicochemical properties of emulsified fuel play a decisive role. Nevertheless, a large scientific effort has been devoted to the experimental evaluation of the microexplosion phenomenon [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26]. However, the micro-explosion phenomenon has been also questioned [27].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on puffing and micro-explosion occurrence of water in rapeseed oil emulsions droplets. Effect of the surfactant concentration.

Melo-Espinosa

Bellettre

Tarlet

et al. 2017

Proceedings ILASS–Europe 2017. 28th Conference on Liquid Atomization and Spray Systems

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In this paper, the assessment of puffing and micro-explosion occurrence in emulsion drops with different water percentage is studied. The emulsified fuels are formulated using micro channel emulsifier, rapeseed oil and diesel fuel as continuous phase, as well as water and Sorbitan Sesquioleate as surfactant. The formulated dispersed systems are covered under different experimental factors such as water ratio and surfactant percentage. The puffing occurrence is reported in all emulsified fuels tested (i.e. with and without surfactant). A sudden puffing and highest number of occurrence is noted when the water amount increases in all emulsified fuels. The micro-explosion phenomenon is only noted in emulsified fuel formulated without surfactant.

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“…The importance gets a higher leap for the emulsified fuel, as micro-explosion is followed immediately after the injection. Although, some studies of micro-explosion for a single fuel droplet are documented [72,73], however, the occurrence of this phenomena for a combustion or non-combusting spray is yet to be explored in details. As reported in literature, there are two very important aspects, namely, spray cone angle and spray penetration of emulsion injection, which are elaborated below:…”

Section: Emulsion Injection Characteristicsmentioning

confidence: 99%

A comprehensive review on the application of emulsions as an alternative fuel for diesel engines

Debnath

Saha

Sahoo

2015

Renewable and Sustainable Energy Reviews

150

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Microexplosion of an emulsion droplet during Leidenfrost burning

Cited by 68 publications

References 25 publications

Role of nanoadditive blended biodiesel emulsion fuel on the working characteristics of a diesel engine

Role of nanoadditive blended biodiesel emulsion fuel on the working characteristics of a diesel engine

Experimental investigation on puffing and micro-explosion occurrence of water in rapeseed oil emulsions droplets. Effect of the surfactant concentration.

A comprehensive review on the application of emulsions as an alternative fuel for diesel engines

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