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

Alex Chang-Da Wen, Issam Mudawar

研究成果: Article同行評審

18 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)1063-1070
頁數8
期刊International Communications in Heat and Mass Transfer
33
發行號9
DOIs
出版狀態Published - 2006 十一月 1

All Science Journal Classification (ASJC) codes

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

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