Temperature determination using multispectral radiation thermometry algorithms for aluminum alloys

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Multispectral radiation thermometry (MRT) was applied to predict the aluminum surface temperature. Experiments were conducted to measure the spectral intensity values for five different aluminum alloys, AL1100, AL2024, AL5083, AL6061, and AL7005, at 600 K, 700 K, and 800 K. The experimental work is coupled with six MRT emissivity models encompassing mathematical and analytical functions to infer surface temperature. Assessment of the MRT emissivity model is subject to parametric effects of number of wavelengths, alloy composition, and temperature. Results show that increasing wavelength number does not significantly improve measurement accuracy while applying MRT. If the emissivity model can represent well the real emissivity behaviors, a more accurate inferred temperature can be achieved. Overall, most models achieve high accuracy in temperature prediction, except two emissivity models. One particular emissivity model provides the best compensation for the aforementioned parametric influences.

Original languageEnglish
Pages (from-to)514-520
Number of pages7
JournalHeat Transfer Engineering
Volume32
Issue number6
DOIs
Publication statusPublished - 2011 May 1

Fingerprint

emissivity
aluminum alloys
temperature measurement
Aluminum alloys
Radiation
radiation
Temperature
surface temperature
temperature
Wavelength
Aluminum
Analytical models
wavelengths
mathematical models
Mathematical models
aluminum
Chemical analysis
predictions
Experiments

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

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title = "Temperature determination using multispectral radiation thermometry algorithms for aluminum alloys",
abstract = "Multispectral radiation thermometry (MRT) was applied to predict the aluminum surface temperature. Experiments were conducted to measure the spectral intensity values for five different aluminum alloys, AL1100, AL2024, AL5083, AL6061, and AL7005, at 600 K, 700 K, and 800 K. The experimental work is coupled with six MRT emissivity models encompassing mathematical and analytical functions to infer surface temperature. Assessment of the MRT emissivity model is subject to parametric effects of number of wavelengths, alloy composition, and temperature. Results show that increasing wavelength number does not significantly improve measurement accuracy while applying MRT. If the emissivity model can represent well the real emissivity behaviors, a more accurate inferred temperature can be achieved. Overall, most models achieve high accuracy in temperature prediction, except two emissivity models. One particular emissivity model provides the best compensation for the aforementioned parametric influences.",
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Temperature determination using multispectral radiation thermometry algorithms for aluminum alloys. / Wen, Alex Chang-Da.

In: Heat Transfer Engineering, Vol. 32, No. 6, 01.05.2011, p. 514-520.

Research output: Contribution to journalArticle

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