Mathematical determination of emissivity and surface temperature of aluminum alloys using multispectral radiation thermometry

Alex Chang-Da Wen; Issam Mudawar

doi:10.1016/j.icheatmasstransfer.2006.05.010

Mathematical determination of emissivity and surface temperature of aluminum alloys using multispectral radiation thermometry

Alex Chang-Da Wen, Issam Mudawar

Department of Mechanical Engineering

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

18 Citations (Scopus)

Abstract

A relatively simple emissivity model has recently been shown to effectively capture the parameteric effects of wavelength, temperature, alloy and surface roughness on the emissivity of aluminum surfaces. In the present study, a mathematical method is developed for determining both the empirical constant in the emissivity model and the surface temperature based on spectral radiance measurements. This study proves the relationship between reflectance ratio and optical roughness is by no means universal, and the complex effects of wavelength, temperature, alloy and surface roughness are more accurately captured with the aid of a multispectral emissivity model.

Original language	English
Pages (from-to)	1063-1070
Number of pages	8
Journal	International Communications in Heat and Mass Transfer
Volume	33
Issue number	9
DOIs	https://doi.org/10.1016/j.icheatmasstransfer.2006.05.010
Publication status	Published - 2006 Nov 1

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Chemical Engineering(all)
Condensed Matter Physics

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abstract = "A relatively simple emissivity model has recently been shown to effectively capture the parameteric effects of wavelength, temperature, alloy and surface roughness on the emissivity of aluminum surfaces. In the present study, a mathematical method is developed for determining both the empirical constant in the emissivity model and the surface temperature based on spectral radiance measurements. This study proves the relationship between reflectance ratio and optical roughness is by no means universal, and the complex effects of wavelength, temperature, alloy and surface roughness are more accurately captured with the aid of a multispectral emissivity model.",

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AU - Wen, Alex Chang-Da

AU - Mudawar, Issam

PY - 2006/11/1

Y1 - 2006/11/1

N2 - A relatively simple emissivity model has recently been shown to effectively capture the parameteric effects of wavelength, temperature, alloy and surface roughness on the emissivity of aluminum surfaces. In the present study, a mathematical method is developed for determining both the empirical constant in the emissivity model and the surface temperature based on spectral radiance measurements. This study proves the relationship between reflectance ratio and optical roughness is by no means universal, and the complex effects of wavelength, temperature, alloy and surface roughness are more accurately captured with the aid of a multispectral emissivity model.

AB - A relatively simple emissivity model has recently been shown to effectively capture the parameteric effects of wavelength, temperature, alloy and surface roughness on the emissivity of aluminum surfaces. In the present study, a mathematical method is developed for determining both the empirical constant in the emissivity model and the surface temperature based on spectral radiance measurements. This study proves the relationship between reflectance ratio and optical roughness is by no means universal, and the complex effects of wavelength, temperature, alloy and surface roughness are more accurately captured with the aid of a multispectral emissivity model.

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JO - International Communications in Heat and Mass Transfer

JF - International Communications in Heat and Mass Transfer

SN - 0735-1933

IS - 9

ER -

Mathematical determination of emissivity and surface temperature of aluminum alloys using multispectral radiation thermometry

Abstract

All Science Journal Classification (ASJC) codes

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