AlO vibrational temperature measurements from burning aluminum particles at elevated pressure

Nick G. Glumac; James Servaites; Herman Krier

doi:10.1080/00102200108935840

AlO vibrational temperature measurements from burning aluminum particles at elevated pressure

Nick G. Glumac, James Servaites, Herman Krier

Mechanical Science and Engineering

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

Abstract

A streak camera is used to obtain time-resolved AlO emission spectra from burning 10 micron aluminum particles in a CO₂/Ar mixture at 8.6 atmospheres in a shock tube. Digital spectra are obtained with a temporal resolution of 16 microseconds over the entire 180 microsecond combustion event. These spectra are fit to vibrational temperatures in the range of 4225 to 5900 K, with uncertainties ranging from 500 to 1400 K. The estimated temperatures are in agreement to within experimental uncertainty with the predicted aluminum combustion temperatures under these conditions. The spectra show some evidence of a non-equilibrium vibrational population distribution during peak of the combustion event.

Original language	English (US)
Pages (from-to)	97-107
Number of pages	11
Journal	Combustion science and technology
Volume	172
Issue number	1
DOIs	https://doi.org/10.1080/00102200108935840
State	Published - 2001

Keywords

AlO
Emission
Vibrational temperature

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Fuel Technology
Energy Engineering and Power Technology
Physics and Astronomy(all)

Online availability

10.1080/00102200108935840

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title = "AlO vibrational temperature measurements from burning aluminum particles at elevated pressure",

abstract = "A streak camera is used to obtain time-resolved AlO emission spectra from burning 10 micron aluminum particles in a CO2/Ar mixture at 8.6 atmospheres in a shock tube. Digital spectra are obtained with a temporal resolution of 16 microseconds over the entire 180 microsecond combustion event. These spectra are fit to vibrational temperatures in the range of 4225 to 5900 K, with uncertainties ranging from 500 to 1400 K. The estimated temperatures are in agreement to within experimental uncertainty with the predicted aluminum combustion temperatures under these conditions. The spectra show some evidence of a non-equilibrium vibrational population distribution during peak of the combustion event.",

keywords = "AlO, Emission, Vibrational temperature",

author = "Glumac, {Nick G.} and James Servaites and Herman Krier",

note = "Funding Information: Received 21 July 2001; accepted 30 October 2001. This work was supported by the Office of Naval Research under MURf contract number NOOOI4-95-1-1339. Substantial assistance with the shock tube experiments was provided by Prof. R. L. Burton and Dr. J. C. Melcher.",

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doi = "10.1080/00102200108935840",

language = "English (US)",

volume = "172",

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journal = "Combustion Science and Technology",

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T1 - AlO vibrational temperature measurements from burning aluminum particles at elevated pressure

AU - Glumac, Nick G.

AU - Servaites, James

AU - Krier, Herman

N1 - Funding Information: Received 21 July 2001; accepted 30 October 2001. This work was supported by the Office of Naval Research under MURf contract number NOOOI4-95-1-1339. Substantial assistance with the shock tube experiments was provided by Prof. R. L. Burton and Dr. J. C. Melcher.

PY - 2001

Y1 - 2001

N2 - A streak camera is used to obtain time-resolved AlO emission spectra from burning 10 micron aluminum particles in a CO2/Ar mixture at 8.6 atmospheres in a shock tube. Digital spectra are obtained with a temporal resolution of 16 microseconds over the entire 180 microsecond combustion event. These spectra are fit to vibrational temperatures in the range of 4225 to 5900 K, with uncertainties ranging from 500 to 1400 K. The estimated temperatures are in agreement to within experimental uncertainty with the predicted aluminum combustion temperatures under these conditions. The spectra show some evidence of a non-equilibrium vibrational population distribution during peak of the combustion event.

AB - A streak camera is used to obtain time-resolved AlO emission spectra from burning 10 micron aluminum particles in a CO2/Ar mixture at 8.6 atmospheres in a shock tube. Digital spectra are obtained with a temporal resolution of 16 microseconds over the entire 180 microsecond combustion event. These spectra are fit to vibrational temperatures in the range of 4225 to 5900 K, with uncertainties ranging from 500 to 1400 K. The estimated temperatures are in agreement to within experimental uncertainty with the predicted aluminum combustion temperatures under these conditions. The spectra show some evidence of a non-equilibrium vibrational population distribution during peak of the combustion event.

KW - AlO

KW - Emission

KW - Vibrational temperature

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IS - 1

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AlO vibrational temperature measurements from burning aluminum particles at elevated pressure

Abstract

Keywords

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