Systematic study is made of emission and absorption of thermal radiation by cavities and of transport of thermal radiation through passages; conditions under which cavity absorption characteristics can be inferred from cavity emission characteristics (and vice versa) are derived; in particular, it is shown that this reciprocity is valid when radiation entering cavity is diffusely distributed across cavity opening; available information on cavity-emission and absorption characteristics is brought together, compared, and generalized; transport of thermal radiation through passages which connect isothermal environments is analyzed for specularly and duffusely reflecting passage walls.


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    Title :

    Radiant emission, absorption, and transmission characteristics of cavities and passages


    Additional title:

    NASA SP


    Contributors:

    Published in:

    NASA Special Publication ; Publ 55 ; p 103-115


    Publication date :

    1965


    Size :

    13 pages


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English


    Keywords :



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