A model for evaluating the micro-explosion of a single droplet of water-in-oil emulsions and the effect of hydrophilic surfactants on the phenomenon

Cao, Lei; Chen, Hui; Xu, Jinshan; Xu, Jun; Cui, Lingrui; Chen, Lian; Cao, Fahai; Xiao, Tiancun

doi:10.1016/j.ces.2022.118047

Chemical Engineering Science

2022

DOI: 10.1016/j.ces.2022.118047

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A model for evaluating the micro-explosion of a single droplet of water-in-oil emulsions and the effect of hydrophilic surfactants on the phenomenon

Lei Cao

Hui Chen

Jinshan Xu

et al.

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Cited by 5 publications

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“…Understanding the phenomenon of combustion is necessary for the improvement of blended fuels. Extensive studies have adopted a droplet combustion approach to explore the combustion characteristics of fuel droplets [16][17][18][19][20][21][22][23] , including phenomenological flame structure analysis and the variations in droplet temperature and diameter during combustion. In most cases, mono-component fuels exhibit stable flame structures with regular decreases in droplet diameter 18,24 .…”

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confidence: 99%

Experimental investigation on enhanced combustion of methanol/heavy fuel oil by droplet puffing at elevated temperatures

Chen,

Long,

Wang

et al. 2024

Sci Rep

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To achieve high-efficiency combustion of heavy fuel oil (HFO), this study investigated the combustion characteristics of methanol/HFO droplets with methanol content from 10 to 30% using the suspension method under ambient temperature from 923 to 1023 K. The combustion of methanol/HFO droplets was summarized as a two-phase process consisting of six typical stages, emphasizing liquid phase. Especially, the fluctuation evaporation stage, induced by frequent and intense puffing, was identified as prominent character. Both the ignition delay and lifetime of HFO and methanol/HFO droplets decreased with increasing ambient temperatures. For the methanol/HFO droplet, the ignition delay and droplet lifetime increased with the increasing methanol content. Prominently, compared to HFO, HM10 had the most significant reduction in droplet lifetime and TINL under the same operating conditions, which indicated that the addition of 10% methanol accelerated the combustion process and reduced soot generation. Additionally, the thermos-dynamic characteristics of methanol/HFO droplets were investigated. Puffing was primarily attributed to superheating of methanol and pyrolysis of heavy components in HFO, which resulted in active and passive rupture of bubbles. Similarity and maximum deformation were employed to qualitatively distinguish between them. The obtained findings aimed to develop a promising alternative fuel to reduce emissions and preserve energy.

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confidence: 99%

Experimental investigation on enhanced combustion of methanol/heavy fuel oil by droplet puffing at elevated temperatures

Chen,

Long,

Wang

et al. 2024

Sci Rep

View full text Add to dashboard Cite

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Achieving optimal micro-explosions in stable emulsions by adding water-soluble polymers

Cao¹,

Cui²,

Xu³

et al. 2023

Chemical Engineering Science

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Fluidized catalytic cracking with novel emulsified feeding for increasing light oil yield and reducing additional CO2 emission

Zhao,

Lv,

Shi

et al. 2024

Chemical Engineering Science

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A model for evaluating the micro-explosion of a single droplet of water-in-oil emulsions and the effect of hydrophilic surfactants on the phenomenon

Cited by 5 publications

References 33 publications

Experimental investigation on enhanced combustion of methanol/heavy fuel oil by droplet puffing at elevated temperatures

Experimental investigation on enhanced combustion of methanol/heavy fuel oil by droplet puffing at elevated temperatures

Achieving optimal micro-explosions in stable emulsions by adding water-soluble polymers

Fluidized catalytic cracking with novel emulsified feeding for increasing light oil yield and reducing additional CO2 emission

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