Combustion of aluminum particles in fluorine containing environments

L. F. Ernst; R. A. Yetter; F. L. Dryer; T. P. Parr; D. M. Hanson-Parr

Combustion of aluminum particles in fluorine containing environments

L. F. Ernst, R. A. Yetter, F. L. Dryer, T. P. Parr, D. M. Hanson-Parr

Research output: Contribution to conference › Paper › peer-review

Abstract

Experimental and modeling results on the combustion of single, isolated aluminum particles in quiescent environments consisting of pure SF₆ and in mixtures of SF₆, O₂ and Ar are reported. Combustion measurements consisted of photographic observations and electron probe microanalysis (EPMA) of the condensed-phase product composition and radial distribution. Numerical results are based on a local equilibrium model in which species diffusion is assumed to be rate limiting. Aluminum particles in pure SF₆ atmospheres were visually observed to bum without condensed phase products in the surrounding envelope flames. The model predicts the measured bum rates within approximately 20% and qualitatively predicts radial profile speciation. In mixtures with low quantities of O₂ in SF₆, the final products shifted from AlF₃ to A1F₂O and again Al₂O₃(l) formation was minimized.

Original language	English (US)
State	Published - 1999
Event	35th Joint Propulsion Conference and Exhibit, 1999 - Los Angeles, United States Duration: Jun 20 1999 → Jun 24 1999

Other

Other	35th Joint Propulsion Conference and Exhibit, 1999
Country/Territory	United States
City	Los Angeles
Period	6/20/99 → 6/24/99

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Electrical and Electronic Engineering
Mechanical Engineering
Control and Systems Engineering
Aerospace Engineering

Cite this

@conference{254c297bef69407985ffc675109f681c,

title = "Combustion of aluminum particles in fluorine containing environments",

abstract = "Experimental and modeling results on the combustion of single, isolated aluminum particles in quiescent environments consisting of pure SF6 and in mixtures of SF6, O2 and Ar are reported. Combustion measurements consisted of photographic observations and electron probe microanalysis (EPMA) of the condensed-phase product composition and radial distribution. Numerical results are based on a local equilibrium model in which species diffusion is assumed to be rate limiting. Aluminum particles in pure SF6 atmospheres were visually observed to bum without condensed phase products in the surrounding envelope flames. The model predicts the measured bum rates within approximately 20% and qualitatively predicts radial profile speciation. In mixtures with low quantities of O2 in SF6, the final products shifted from AlF3 to A1F2O and again Al2O3(l) formation was minimized.",

author = "Ernst, {L. F.} and Yetter, {R. A.} and Dryer, {F. L.} and Parr, {T. P.} and Hanson-Parr, {D. M.}",

note = "Publisher Copyright: {\textcopyright} 1999 by Ernst et.al. Published by the American Institute of Aeronautics and Astronautics, Inc.; 35th Joint Propulsion Conference and Exhibit, 1999 ; Conference date: 20-06-1999 Through 24-06-1999",

year = "1999",

language = "English (US)",

}

TY - CONF

T1 - Combustion of aluminum particles in fluorine containing environments

AU - Ernst, L. F.

AU - Yetter, R. A.

AU - Dryer, F. L.

AU - Parr, T. P.

AU - Hanson-Parr, D. M.

PY - 1999

Y1 - 1999

N2 - Experimental and modeling results on the combustion of single, isolated aluminum particles in quiescent environments consisting of pure SF6 and in mixtures of SF6, O2 and Ar are reported. Combustion measurements consisted of photographic observations and electron probe microanalysis (EPMA) of the condensed-phase product composition and radial distribution. Numerical results are based on a local equilibrium model in which species diffusion is assumed to be rate limiting. Aluminum particles in pure SF6 atmospheres were visually observed to bum without condensed phase products in the surrounding envelope flames. The model predicts the measured bum rates within approximately 20% and qualitatively predicts radial profile speciation. In mixtures with low quantities of O2 in SF6, the final products shifted from AlF3 to A1F2O and again Al2O3(l) formation was minimized.

AB - Experimental and modeling results on the combustion of single, isolated aluminum particles in quiescent environments consisting of pure SF6 and in mixtures of SF6, O2 and Ar are reported. Combustion measurements consisted of photographic observations and electron probe microanalysis (EPMA) of the condensed-phase product composition and radial distribution. Numerical results are based on a local equilibrium model in which species diffusion is assumed to be rate limiting. Aluminum particles in pure SF6 atmospheres were visually observed to bum without condensed phase products in the surrounding envelope flames. The model predicts the measured bum rates within approximately 20% and qualitatively predicts radial profile speciation. In mixtures with low quantities of O2 in SF6, the final products shifted from AlF3 to A1F2O and again Al2O3(l) formation was minimized.

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M3 - Paper

AN - SCOPUS:84963808507

T2 - 35th Joint Propulsion Conference and Exhibit, 1999

Y2 - 20 June 1999 through 24 June 1999

ER -

Combustion of aluminum particles in fluorine containing environments

Abstract

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All Science Journal Classification (ASJC) codes

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