English Русский 中文 Português Español Français Deutsch 概要 編集委員会 連絡先 アクセス Begell House
View in Semantic Map View in A-Z Index

Consider two parallel plane surfaces of infinite extent that have different uniform temperatures (Figure 1). The space between the surfaces either is a vacuum or contains a material that does not interact with radiative energy; the surface properties are independent of wavelength (gray surfaces). A useful radiative exchange result is the net transfer from a unit area of surface 1 across the separation space to surface 2. This is derived in standard heat transfer texts by flux or ray tracing methods, Siegel and Howell (1992). The Emissivity (which equals the absorptivity for a gray surface) of each surface is assumed independent of the angular direction of emission. Reflected energy, however, can be diffuse, specular (mirror-like), or can have an arbitrary angular distribution, and the same result is obtained. The surface properties can depend on temperature. For these conditions, after accounting for all exchanges between the parallel boundaries, the net energy flux (W/m2) transferred ...


THERMOPEDIA™ への登録を希望される場合、ここからリクエストして下さい。


  1. Siegel, R. and Howell, J. R. (1992) Thermal Radiation Heat Transfer, 3rd edn., Hemisphere Publishing Corporation, Washington DC.
  2. Siegel, R. and Spuckler, C. M. (1994) Approximate solution methods for spectral radiative transfer in high refractive index layers, Int. J. of Heat and Mass Trans., 37 (Suppl. 1), 403-413. DOI: 10.1016/0017-9310(94)90040-X
  3. Viskanta, R. and Grosh, R. J. (1962) Effect of surface emissivity on heat transfer by simultaneous conduction and radiation, Int. J. of Heat and Mass Trans., 5, 729-734. DOI: 10.1016/0017-9310(62)90203-X
表示回数: 37426 記事追加日: 7 September 2010 記事最終修正日: 24 May 2011 ©著作権 2010-3921 トップへ戻る
A-Z索引 著者/編集者 意味マップ ビジュアルギャラリー 寄稿 Guest