Using the inverse method to estimate the solar absorptivity and emissivity of wood exposed to the outdoor environment

Wook Kang, Yong Hun Lee, Chun Won Kang, Woo Yang Chung, Hui Lan Xu, Junji Matsumura

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This study used the inverse method to investigate the solar absorptivity and emissivity of wood. The solar absorptivity and emissivity estimates were 0.396 (0.308-0.570) and 0.526 (0.307-0.772), respectively. They were highly dependent on the boundary conditions of convective heat transfer coefficients. Emissivity was much lower than that seen in most previous studies. Absorptivity was closely related to the L*a*b* color system, mainly to whiteness. It increased with increasing density because lightness or whiteness has the highest correlation with density. There was a weak positive correlation between absorptivity and emissivity overall with R2=0.223.

Original languageEnglish
Pages (from-to)139-148
Number of pages10
JournalJournal of the Faculty of Agriculture, Kyushu University
Volume56
Issue number1
Publication statusPublished - Feb 1 2011
Externally publishedYes

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Color
Hot Temperature
heat transfer coefficient
color
methodology

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Agronomy and Crop Science

Cite this

Using the inverse method to estimate the solar absorptivity and emissivity of wood exposed to the outdoor environment. / Kang, Wook; Lee, Yong Hun; Kang, Chun Won; Chung, Woo Yang; Xu, Hui Lan; Matsumura, Junji.

In: Journal of the Faculty of Agriculture, Kyushu University, Vol. 56, No. 1, 01.02.2011, p. 139-148.

Research output: Contribution to journalArticle

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