Phenomenology of electrostatically charged droplet combustion in normal gravity

Eric K. Anderson; Jeremy A. Koch; Dimitrios C. Kyritsis

doi:10.1016/j.combustflame.2008.05.005

Phenomenology of electrostatically charged droplet combustion in normal gravity

Eric K. Anderson, Jeremy A. Koch, Dimitrios C. Kyritsis

Mechanical & Nuclear Engineering

University of Illinois at Urbana - Champaign

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

27 Scopus citations

Abstract

Experimental findings are provided on the effect of electrostatically charging a fuel on single-burning droplet combustion in normal gravity. It was established that significant modification of the flame morphology and the droplet burning time could be achieved, solely by the droplet charge, without the application of external electric fields. Negative charging of the droplets of mixtures of isooctane with either ethanol or a commercially available anti-static additive generated intense motion of the flame and abbreviated the droplet burning time by as much as 40% for certain blend compositions. Positive charging of the droplets generated almost spherical flames, because electrostatic attraction toward the droplets countered the effect of buoyancy. By comparing combustion of droplets of the same conductivity but different compositions, coupling of electrostatics with combustion chemistry was established.

Original language	British English
Pages (from-to)	624-629
Number of pages	6
Journal	Combustion and Flame
Volume	154
Issue number	3
DOIs	https://doi.org/10.1016/j.combustflame.2008.05.005
State	Published - Aug 2008

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10.1016/j.combustflame.2008.05.005

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title = "Phenomenology of electrostatically charged droplet combustion in normal gravity",

abstract = "Experimental findings are provided on the effect of electrostatically charging a fuel on single-burning droplet combustion in normal gravity. It was established that significant modification of the flame morphology and the droplet burning time could be achieved, solely by the droplet charge, without the application of external electric fields. Negative charging of the droplets of mixtures of isooctane with either ethanol or a commercially available anti-static additive generated intense motion of the flame and abbreviated the droplet burning time by as much as 40% for certain blend compositions. Positive charging of the droplets generated almost spherical flames, because electrostatic attraction toward the droplets countered the effect of buoyancy. By comparing combustion of droplets of the same conductivity but different compositions, coupling of electrostatics with combustion chemistry was established.",

author = "Anderson, {Eric K.} and Koch, {Jeremy A.} and Kyritsis, {Dimitrios C.}",

note = "Funding Information: The authors acknowledge the support of the U.S. Department of Energy through the Graduate Automotive Technology Education (GATE) Center of Excellence at the University of Illinois, of the Donors of the American Chemical Society Petroleum Research Fund (Grant PRF 42287, G9, Dr. David L. Schutt, Acting Program Director), as well as of the National Science Foundation (Grant CTS 04-48968CAR, Dr. Phillip Westmoreland, contract monitor). ",

year = "2008",

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doi = "10.1016/j.combustflame.2008.05.005",

language = "British English",

volume = "154",

pages = "624--629",

journal = "Combustion and Flame",

issn = "0010-2180",

publisher = "Elsevier Inc.",

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AU - Anderson, Eric K.

AU - Koch, Jeremy A.

AU - Kyritsis, Dimitrios C.

N1 - Funding Information: The authors acknowledge the support of the U.S. Department of Energy through the Graduate Automotive Technology Education (GATE) Center of Excellence at the University of Illinois, of the Donors of the American Chemical Society Petroleum Research Fund (Grant PRF 42287, G9, Dr. David L. Schutt, Acting Program Director), as well as of the National Science Foundation (Grant CTS 04-48968CAR, Dr. Phillip Westmoreland, contract monitor).

PY - 2008/8

Y1 - 2008/8

N2 - Experimental findings are provided on the effect of electrostatically charging a fuel on single-burning droplet combustion in normal gravity. It was established that significant modification of the flame morphology and the droplet burning time could be achieved, solely by the droplet charge, without the application of external electric fields. Negative charging of the droplets of mixtures of isooctane with either ethanol or a commercially available anti-static additive generated intense motion of the flame and abbreviated the droplet burning time by as much as 40% for certain blend compositions. Positive charging of the droplets generated almost spherical flames, because electrostatic attraction toward the droplets countered the effect of buoyancy. By comparing combustion of droplets of the same conductivity but different compositions, coupling of electrostatics with combustion chemistry was established.

AB - Experimental findings are provided on the effect of electrostatically charging a fuel on single-burning droplet combustion in normal gravity. It was established that significant modification of the flame morphology and the droplet burning time could be achieved, solely by the droplet charge, without the application of external electric fields. Negative charging of the droplets of mixtures of isooctane with either ethanol or a commercially available anti-static additive generated intense motion of the flame and abbreviated the droplet burning time by as much as 40% for certain blend compositions. Positive charging of the droplets generated almost spherical flames, because electrostatic attraction toward the droplets countered the effect of buoyancy. By comparing combustion of droplets of the same conductivity but different compositions, coupling of electrostatics with combustion chemistry was established.

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DO - 10.1016/j.combustflame.2008.05.005

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VL - 154

SP - 624

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JO - Combustion and Flame

JF - Combustion and Flame

IS - 3

ER -

Phenomenology of electrostatically charged droplet combustion in normal gravity

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