An experiment on vaporization and microexplosion of emulsion fuel droplets on a hot surface

Suk H. Chung; Joong S. Kim

doi:10.1016/S0082-0784(06)80410-8

An experiment on vaporization and microexplosion of emulsion fuel droplets on a hot surface

Suk H. Chung^*, Joong S. Kim

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Changes in the composition during vaporization of oil and water emulsion fuel droplets levitated on a hot surface by the Leidenfrost phenomenon have been studied experimentally. Results show that there exists a strong mechanism of transporting microdroplets to the vaporizing droplet surface such that the component consisting of the microdroplets always vaporizes first. This phenomenon indicates that such effects as the differences in the boiling points and densities or phase equilibrium characteristics of the two constituents of emulsion fuels are secondary. Thus, the dynamic evaporation characteristics of microdroplets should be accounted for in predicting the occurrence of microexplosions in addition to considerations for the thermodynamic criteria of microexlosions such as the limit of superheat.

Original language	English (US)
Pages (from-to)	1431-1435
Number of pages	5
Journal	Symposium (International) on Combustion
Volume	23
Issue number	1
DOIs	https://doi.org/10.1016/S0082-0784(06)80410-8
State	Published - 1991
Externally published	Yes

ASJC Scopus subject areas

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
Mechanical Engineering
Physical and Theoretical Chemistry
Fluid Flow and Transfer Processes

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10.1016/S0082-0784(06)80410-8

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title = "An experiment on vaporization and microexplosion of emulsion fuel droplets on a hot surface",

abstract = "Changes in the composition during vaporization of oil and water emulsion fuel droplets levitated on a hot surface by the Leidenfrost phenomenon have been studied experimentally. Results show that there exists a strong mechanism of transporting microdroplets to the vaporizing droplet surface such that the component consisting of the microdroplets always vaporizes first. This phenomenon indicates that such effects as the differences in the boiling points and densities or phase equilibrium characteristics of the two constituents of emulsion fuels are secondary. Thus, the dynamic evaporation characteristics of microdroplets should be accounted for in predicting the occurrence of microexplosions in addition to considerations for the thermodynamic criteria of microexlosions such as the limit of superheat.",

author = "Chung, {Suk H.} and Kim, {Joong S.}",

note = "Funding Information: This work has been supported by the Korea Sc~ ence and Engineering Foundation. We are grateft to one of the referees for his patient assistance witl English of this manuscript.",

year = "1991",

doi = "10.1016/S0082-0784(06)80410-8",

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T1 - An experiment on vaporization and microexplosion of emulsion fuel droplets on a hot surface

AU - Chung, Suk H.

AU - Kim, Joong S.

N1 - Funding Information: This work has been supported by the Korea Sc~ ence and Engineering Foundation. We are grateft to one of the referees for his patient assistance witl English of this manuscript.

PY - 1991

Y1 - 1991

N2 - Changes in the composition during vaporization of oil and water emulsion fuel droplets levitated on a hot surface by the Leidenfrost phenomenon have been studied experimentally. Results show that there exists a strong mechanism of transporting microdroplets to the vaporizing droplet surface such that the component consisting of the microdroplets always vaporizes first. This phenomenon indicates that such effects as the differences in the boiling points and densities or phase equilibrium characteristics of the two constituents of emulsion fuels are secondary. Thus, the dynamic evaporation characteristics of microdroplets should be accounted for in predicting the occurrence of microexplosions in addition to considerations for the thermodynamic criteria of microexlosions such as the limit of superheat.

AB - Changes in the composition during vaporization of oil and water emulsion fuel droplets levitated on a hot surface by the Leidenfrost phenomenon have been studied experimentally. Results show that there exists a strong mechanism of transporting microdroplets to the vaporizing droplet surface such that the component consisting of the microdroplets always vaporizes first. This phenomenon indicates that such effects as the differences in the boiling points and densities or phase equilibrium characteristics of the two constituents of emulsion fuels are secondary. Thus, the dynamic evaporation characteristics of microdroplets should be accounted for in predicting the occurrence of microexplosions in addition to considerations for the thermodynamic criteria of microexlosions such as the limit of superheat.

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JO - Symposium (International) on Combustion

JF - Symposium (International) on Combustion

IS - 1

ER -

An experiment on vaporization and microexplosion of emulsion fuel droplets on a hot surface

Abstract

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