Laser-induced incandescence calibration via gravimetric sampling

Randy Lee Vander Wal, Z. Zhou, M. Y. Choi

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Absolute calibration of laser-induced incandescence (LII) is demonstrated via comparison of LII signal intensities with gravimetrically determined soot volume fractions. This calibration technique does not rely upon calculated or measured optical characteristics of soot. The variation of the LII signal with gravimetrically measured soot volume fractions ranging from 0.078 to 1.1 ppm established the linearly of the calibration. With the high spatial and temporal resolution capabilities of laser-induced incandescence (LII), the spatial and temporal fluctuations of the soot field within a gravimetric chimney were characterized. Radial uniformity of the soot volume fraction, f(v), was demonstrated with sufficient averaging of the single laser shot LII images of the soot field thus confirming the validity of the calibration method for imaging applications. As illustration, instantaneous soot volume fractions within a Re = 5000 ethylene/air diffusion flame measured via planar LII were established quantitatively with this calibration.

Original languageEnglish (US)
Pages (from-to)462-470
Number of pages9
JournalCombustion and Flame
Volume105
Issue number4
DOIs
StatePublished - Jan 1 1996

Fingerprint

incandescence
Soot
soot
sampling
Calibration
Sampling
Lasers
Volume fraction
lasers
chimneys
Chimneys
diffusion flames
temporal resolution
shot
Ethylene
ethylene
spatial resolution
Imaging techniques
high resolution
air

All Science Journal Classification (ASJC) codes

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

Cite this

Vander Wal, Randy Lee ; Zhou, Z. ; Choi, M. Y. / Laser-induced incandescence calibration via gravimetric sampling. In: Combustion and Flame. 1996 ; Vol. 105, No. 4. pp. 462-470.
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Laser-induced incandescence calibration via gravimetric sampling. / Vander Wal, Randy Lee; Zhou, Z.; Choi, M. Y.

In: Combustion and Flame, Vol. 105, No. 4, 01.01.1996, p. 462-470.

Research output: Contribution to journalArticle

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