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Dielectric compound parabolic concentrating solar collector with a frustrated total internal reflection absorber

Journal Article · · Appl. Opt.; (United States)
DOI:https://doi.org/10.1364/AO.28.000157· OSTI ID:6770021
Coupling a dielectric compound parabolic concentrator (DCPC) to an absorber across a vacuum gap by means of frustrated total internal reflection (FTIR) can theoretically approach the maximum concentration permitted by physical laws, thus allowing higher radiative fluxes in thermal applications. The calculated optical performance of 2-D DCPCs with FTIR absorbers indicates that the ratio of gap thickness to optical wavelength must be /0.22 before the optical performance of the DCPC is superior to that of the nondielectric CPC.
Research Organization:
Argonne National Laboratory, Argonne, Illinois 60439
OSTI ID:
6770021
Journal Information:
Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 28:1; ISSN APOPA
Country of Publication:
United States
Language:
English