Measurement of Spectra of Normal Incidence Absorptance of Surfaces in Life Space

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  • 生活空間を構成する表面の垂直入射吸収率スペクトルの測定
  • セイカツ クウカン オ コウセイ スル ヒョウメン ノ スイチョク ニュウシャ キュウシュウリツ スペクトル ノ ソクテイ

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Abstract

Thermal and radiative environment of human life space is characterized strongly by the solar radiation and by the radiation from surrounding walls as well as air temperature and humidity. To consider the environmental radiation quantitatively, absorptance spectra and total emittance of the surfaces should be measured properly. In this work we measure spectra of normal incidence absorptance of such surfaces in a near-ultraviolet through infrared region of wavelength of 0.30~11 μm. On the basis of measured spectra we evaluate solar absorptance of the surfaces to respond to the needs of radiation characteristics of the surfaces in the fields of architecture, life science and solar engineering. Objective surfaces of the measurement are surfaces of inner and outer environments: clothes, inner wall materials, painted surfaces, ceramics, bricks, outer wall materials, road materials, leaves, etc. We also observe the transition of absorptance spectra of a water-wet cement surface in a drying process.

Journal

  • Netsu Bussei

    Netsu Bussei 25 (1), 8-14, 2014

    JAPAN SOCIETY OF THERMOPHYSICAL PROPERTIES

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