Conditions for and Characteristics of the Dispersion of Gel Fuel Droplets during Ignition

We formulated and experimentally proved a hypothesis on the causes of dispersion (puffing and microexplosion) of binary fuel droplets, including those in the composition of gel fuels. This hypothesis is based on the concepts of wetting thermodynamics and the theory of the two-component surface energ...

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Main Authors: Dmitriy Feoktistov, Evgeniya Orlova, Dmitriy Glushkov, Akram Abedtazehabadi, Saveliy Belyaev
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/2/1072
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author Dmitriy Feoktistov
Evgeniya Orlova
Dmitriy Glushkov
Akram Abedtazehabadi
Saveliy Belyaev
author_facet Dmitriy Feoktistov
Evgeniya Orlova
Dmitriy Glushkov
Akram Abedtazehabadi
Saveliy Belyaev
author_sort Dmitriy Feoktistov
collection DOAJ
description We formulated and experimentally proved a hypothesis on the causes of dispersion (puffing and microexplosion) of binary fuel droplets, including those in the composition of gel fuels. This hypothesis is based on the concepts of wetting thermodynamics and the theory of the two-component surface energy of substances and materials. An effective and reliable criterion was established that allowed the assessment of the possibility of the onset of puffing and microexplosion during the high-temperature heating of binary liquids. Microexplosions were found to occur only when isothermal conditions were necessarily reached at the liquid–liquid interface during the mixing of mutually insoluble components, provided that one component had to be polar, and the second had to be dispersive. In addition, it was necessary to provide external heating conditions under which the value of the surface free energy of the liquid–liquid interface formation tended to zero.
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spelling doaj.art-813a2102c036443596bcef851f1225db2023-11-30T21:05:48ZengMDPI AGApplied Sciences2076-34172023-01-01132107210.3390/app13021072Conditions for and Characteristics of the Dispersion of Gel Fuel Droplets during IgnitionDmitriy Feoktistov0Evgeniya Orlova1Dmitriy Glushkov2Akram Abedtazehabadi3Saveliy Belyaev4Heat and Mass Transfer Laboratory, National Research Tomsk Polytechnic University, 634050 Tomsk, RussiaSchool of Energy & Power Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, RussiaHeat and Mass Transfer Laboratory, National Research Tomsk Polytechnic University, 634050 Tomsk, RussiaSchool of Energy & Power Engineering, National Research Tomsk Polytechnic University, 634050 Tomsk, RussiaHeat and Mass Transfer Laboratory, National Research Tomsk Polytechnic University, 634050 Tomsk, RussiaWe formulated and experimentally proved a hypothesis on the causes of dispersion (puffing and microexplosion) of binary fuel droplets, including those in the composition of gel fuels. This hypothesis is based on the concepts of wetting thermodynamics and the theory of the two-component surface energy of substances and materials. An effective and reliable criterion was established that allowed the assessment of the possibility of the onset of puffing and microexplosion during the high-temperature heating of binary liquids. Microexplosions were found to occur only when isothermal conditions were necessarily reached at the liquid–liquid interface during the mixing of mutually insoluble components, provided that one component had to be polar, and the second had to be dispersive. In addition, it was necessary to provide external heating conditions under which the value of the surface free energy of the liquid–liquid interface formation tended to zero.https://www.mdpi.com/2076-3417/13/2/1072gel fuelemulsiondroplet dispersionwetting thermodynamicssurface tensionsurface free energy
spellingShingle Dmitriy Feoktistov
Evgeniya Orlova
Dmitriy Glushkov
Akram Abedtazehabadi
Saveliy Belyaev
Conditions for and Characteristics of the Dispersion of Gel Fuel Droplets during Ignition
Applied Sciences
gel fuel
emulsion
droplet dispersion
wetting thermodynamics
surface tension
surface free energy
title Conditions for and Characteristics of the Dispersion of Gel Fuel Droplets during Ignition
title_full Conditions for and Characteristics of the Dispersion of Gel Fuel Droplets during Ignition
title_fullStr Conditions for and Characteristics of the Dispersion of Gel Fuel Droplets during Ignition
title_full_unstemmed Conditions for and Characteristics of the Dispersion of Gel Fuel Droplets during Ignition
title_short Conditions for and Characteristics of the Dispersion of Gel Fuel Droplets during Ignition
title_sort conditions for and characteristics of the dispersion of gel fuel droplets during ignition
topic gel fuel
emulsion
droplet dispersion
wetting thermodynamics
surface tension
surface free energy
url https://www.mdpi.com/2076-3417/13/2/1072
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