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Thermodynamic conversion of the radiation flux emitted by a spherical source of black‐body radiation
Author(s) -
Bǎdescu V.
Publication year - 1992
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440160807
Subject(s) - radiation , radiation flux , physics , upper and lower bounds , solid angle , flux (metallurgy) , computational physics , optics , materials science , mathematics , mathematical analysis , detector , metallurgy
Abstract The maximum conversion efficiency η max of black‐body radiation is found to be strongly dependent on the solid angle ω subtended by the source of radiation. It is proved that η max has an upper bound which depends on ω. This upper bound is more accurate than existing formulas, which do not depend on ω.