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Entropy fluxes, endoreversibility, and solar energy conversion

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4 Author(s)
De Vos, A. ; Vakgroep voor Elektronika en Informatiesystemen, Universiteit Gent, Sint Pietersnieuwstraat 41, B‐9000 Gent, Belgium ; Landsberg, P.T. ; Baruch, P. ; Parrott, J.E.

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A formalism describing the conversion of radiation energy into work can be constructed in terms of energy and entropy fluxes. This leads, among others, to the Landsberg efficiency, a formula expressing an upper bound to photothermal solar energy conversion. The relationship between the above approach and the viewpoint of endoreversible thermodynamics is investigated. An extension to photovoltaic solar energy conversion is formulated. A generalization of the Landsberg formula, for a solar energy converter with arbitrary bandgap, is presented.

Published in:

Journal of Applied Physics  (Volume:74 ,  Issue: 6 )