Breakup and explosion of droplets of two immiscible fluids and emulsions

Результат исследований: Материалы для журналаСтатья

Выдержка

The explosive breakup of liquid, emulsion, and slurry droplets enables a several-fold increase of their evaporation surface area. This effect reduces the energy and time required for fuel heating, evaporation, and ignition. It also lowers anthropogenic emissions and provides fuller fuel burnout. However, the conditions and possible regimes of explosive breakup of liquid, slurry and emulsion droplets have yet to be found. Knowledge on such processes is necessary for improving the performance of fuel ignition and combustion as well as thermal and flame liquid treatment. Component mixing and storage may differ. The experiments in this research compare the explosive breakup of heated droplets of two immiscible fluids (e.g., water/flammable liquid) and water-in-diesel (W/D) emulsions stabilized by monoethanolamides of fatty acids. The experiments used the most widespread combustible liquids and fuels applied in the industry: kerosene, gasoline, diesel, petroleum oils, as well as petroleum. The most valuable findings are as follows: the experimentally established threshold conditions of droplet breakup, two regimes of droplet fragmentation, four outcomes of the parent droplet heating, as well as the number and size of the resulting fuel aerosol droplets. Another important experimental result consists in determining the maximum droplet heating times to explosive breakup corresponding to the equal proportions of water and flammable liquid (or fuel) in a droplet. If one of the components significantly exceeded the other one in proportion, the shortest heating time to droplet breakup was observed. The focus was on comparing the characteristics and parameters of droplets of W/D emulsions and droplets of two immiscible fluids. W/D emulsion droplets break up to form a fine aerosol, whereas two-component droplets show two breakup regimes: puffing and micro-explosion. The results obtained are important for the development of high-potential gas-vapor-droplet technologies to intensify the evaporation of additives and the ignition of fuel compositions.

Язык оригиналаАнглийский
Страницы (с-по)30-41
Число страниц12
ЖурналInternational Journal of Thermal Sciences
Том142
DOI
СостояниеОпубликовано - 1 авг 2019

Отпечаток

emulsions
Explosions
Emulsions
explosions
Fluids
fluids
liquids
ignition
heating
water
evaporation
crude oil
aerosols
proportion
Liquids
burnout
kerosene
Ignition
Heating
Drop breakup

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)

Цитировать

Breakup and explosion of droplets of two immiscible fluids and emulsions. / Antonov, D. V.; Piskunov, M. V.; Strizhak, P. A.

В: International Journal of Thermal Sciences, Том 142, 01.08.2019, стр. 30-41.

Результат исследований: Материалы для журналаСтатья

@article{576a3056a63142d582515a0f4562395a,
title = "Breakup and explosion of droplets of two immiscible fluids and emulsions",
abstract = "The explosive breakup of liquid, emulsion, and slurry droplets enables a several-fold increase of their evaporation surface area. This effect reduces the energy and time required for fuel heating, evaporation, and ignition. It also lowers anthropogenic emissions and provides fuller fuel burnout. However, the conditions and possible regimes of explosive breakup of liquid, slurry and emulsion droplets have yet to be found. Knowledge on such processes is necessary for improving the performance of fuel ignition and combustion as well as thermal and flame liquid treatment. Component mixing and storage may differ. The experiments in this research compare the explosive breakup of heated droplets of two immiscible fluids (e.g., water/flammable liquid) and water-in-diesel (W/D) emulsions stabilized by monoethanolamides of fatty acids. The experiments used the most widespread combustible liquids and fuels applied in the industry: kerosene, gasoline, diesel, petroleum oils, as well as petroleum. The most valuable findings are as follows: the experimentally established threshold conditions of droplet breakup, two regimes of droplet fragmentation, four outcomes of the parent droplet heating, as well as the number and size of the resulting fuel aerosol droplets. Another important experimental result consists in determining the maximum droplet heating times to explosive breakup corresponding to the equal proportions of water and flammable liquid (or fuel) in a droplet. If one of the components significantly exceeded the other one in proportion, the shortest heating time to droplet breakup was observed. The focus was on comparing the characteristics and parameters of droplets of W/D emulsions and droplets of two immiscible fluids. W/D emulsion droplets break up to form a fine aerosol, whereas two-component droplets show two breakup regimes: puffing and micro-explosion. The results obtained are important for the development of high-potential gas-vapor-droplet technologies to intensify the evaporation of additives and the ignition of fuel compositions.",
keywords = "Fuel aerosol, Immiscible fluids, Micro-explosion, Planar laser induced fluorescence, Puffing, Water-in-diesel emulsions",
author = "Antonov, {D. V.} and Piskunov, {M. V.} and Strizhak, {P. A.}",
year = "2019",
month = "8",
day = "1",
doi = "10.1016/j.ijthermalsci.2019.04.011",
language = "English",
volume = "142",
pages = "30--41",
journal = "International Journal of Thermal Sciences",
issn = "1290-0729",
publisher = "Elsevier Masson SAS",

}

TY - JOUR

T1 - Breakup and explosion of droplets of two immiscible fluids and emulsions

AU - Antonov, D. V.

AU - Piskunov, M. V.

AU - Strizhak, P. A.

PY - 2019/8/1

Y1 - 2019/8/1

N2 - The explosive breakup of liquid, emulsion, and slurry droplets enables a several-fold increase of their evaporation surface area. This effect reduces the energy and time required for fuel heating, evaporation, and ignition. It also lowers anthropogenic emissions and provides fuller fuel burnout. However, the conditions and possible regimes of explosive breakup of liquid, slurry and emulsion droplets have yet to be found. Knowledge on such processes is necessary for improving the performance of fuel ignition and combustion as well as thermal and flame liquid treatment. Component mixing and storage may differ. The experiments in this research compare the explosive breakup of heated droplets of two immiscible fluids (e.g., water/flammable liquid) and water-in-diesel (W/D) emulsions stabilized by monoethanolamides of fatty acids. The experiments used the most widespread combustible liquids and fuels applied in the industry: kerosene, gasoline, diesel, petroleum oils, as well as petroleum. The most valuable findings are as follows: the experimentally established threshold conditions of droplet breakup, two regimes of droplet fragmentation, four outcomes of the parent droplet heating, as well as the number and size of the resulting fuel aerosol droplets. Another important experimental result consists in determining the maximum droplet heating times to explosive breakup corresponding to the equal proportions of water and flammable liquid (or fuel) in a droplet. If one of the components significantly exceeded the other one in proportion, the shortest heating time to droplet breakup was observed. The focus was on comparing the characteristics and parameters of droplets of W/D emulsions and droplets of two immiscible fluids. W/D emulsion droplets break up to form a fine aerosol, whereas two-component droplets show two breakup regimes: puffing and micro-explosion. The results obtained are important for the development of high-potential gas-vapor-droplet technologies to intensify the evaporation of additives and the ignition of fuel compositions.

AB - The explosive breakup of liquid, emulsion, and slurry droplets enables a several-fold increase of their evaporation surface area. This effect reduces the energy and time required for fuel heating, evaporation, and ignition. It also lowers anthropogenic emissions and provides fuller fuel burnout. However, the conditions and possible regimes of explosive breakup of liquid, slurry and emulsion droplets have yet to be found. Knowledge on such processes is necessary for improving the performance of fuel ignition and combustion as well as thermal and flame liquid treatment. Component mixing and storage may differ. The experiments in this research compare the explosive breakup of heated droplets of two immiscible fluids (e.g., water/flammable liquid) and water-in-diesel (W/D) emulsions stabilized by monoethanolamides of fatty acids. The experiments used the most widespread combustible liquids and fuels applied in the industry: kerosene, gasoline, diesel, petroleum oils, as well as petroleum. The most valuable findings are as follows: the experimentally established threshold conditions of droplet breakup, two regimes of droplet fragmentation, four outcomes of the parent droplet heating, as well as the number and size of the resulting fuel aerosol droplets. Another important experimental result consists in determining the maximum droplet heating times to explosive breakup corresponding to the equal proportions of water and flammable liquid (or fuel) in a droplet. If one of the components significantly exceeded the other one in proportion, the shortest heating time to droplet breakup was observed. The focus was on comparing the characteristics and parameters of droplets of W/D emulsions and droplets of two immiscible fluids. W/D emulsion droplets break up to form a fine aerosol, whereas two-component droplets show two breakup regimes: puffing and micro-explosion. The results obtained are important for the development of high-potential gas-vapor-droplet technologies to intensify the evaporation of additives and the ignition of fuel compositions.

KW - Fuel aerosol

KW - Immiscible fluids

KW - Micro-explosion

KW - Planar laser induced fluorescence

KW - Puffing

KW - Water-in-diesel emulsions

UR - http://www.scopus.com/inward/record.url?scp=85064183133&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85064183133&partnerID=8YFLogxK

U2 - 10.1016/j.ijthermalsci.2019.04.011

DO - 10.1016/j.ijthermalsci.2019.04.011

M3 - Article

AN - SCOPUS:85064183133

VL - 142

SP - 30

EP - 41

JO - International Journal of Thermal Sciences

JF - International Journal of Thermal Sciences

SN - 1290-0729

ER -