Photon reabsorption in fluorescent solar collectors
Photon reabsorption in fluorescent solar collectors
Understanding photon transport losses in fluorescence solar collectors is very important for increasing optical efficiencies. We present an analytical expression to characterize photon reabsorption in fluorescent solar collectors, which represent a major source of photon loss. A particularly useful universal form of this expression is found in the limit of high reabsorption, which gives the photon reabsorption probability in a simple form as a function of the absorption coefficient and the optical étendue of the emitted photon beam. Our mathematical model predicts fluorescence spectra emitted from the collector edge, which are in excellent agreement with experiment and provide an effective characterization tool for photon transport in light absorbing media.
076104-1-076104-3
Fang, L.
02af2887-a677-4931-8506-f3210a28ecaa
Parel, T. S.
34853bb2-530e-4f3d-a2ae-d13cda8e1c65
Danos, L.
c831e137-37b9-42cc-ab8c-49de31038922
Markvart, T.
f21e82ec-4e3b-4485-9f27-ffc0102fdf1c
2012
Fang, L.
02af2887-a677-4931-8506-f3210a28ecaa
Parel, T. S.
34853bb2-530e-4f3d-a2ae-d13cda8e1c65
Danos, L.
c831e137-37b9-42cc-ab8c-49de31038922
Markvart, T.
f21e82ec-4e3b-4485-9f27-ffc0102fdf1c
Fang, L., Parel, T. S., Danos, L. and Markvart, T.
(2012)
Photon reabsorption in fluorescent solar collectors.
Journal of Applied Physics, 111 (7), .
(doi:10.1063/1.3702815).
Abstract
Understanding photon transport losses in fluorescence solar collectors is very important for increasing optical efficiencies. We present an analytical expression to characterize photon reabsorption in fluorescent solar collectors, which represent a major source of photon loss. A particularly useful universal form of this expression is found in the limit of high reabsorption, which gives the photon reabsorption probability in a simple form as a function of the absorption coefficient and the optical étendue of the emitted photon beam. Our mathematical model predicts fluorescence spectra emitted from the collector edge, which are in excellent agreement with experiment and provide an effective characterization tool for photon transport in light absorbing media.
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Published date: 2012
Organisations:
Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 348262
URI: http://eprints.soton.ac.uk/id/eprint/348262
ISSN: 0021-8979
PURE UUID: e4fd9a30-9f12-4a98-9c63-168b152b9557
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Date deposited: 11 Feb 2013 11:41
Last modified: 14 Mar 2024 12:57
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Author:
L. Fang
Author:
T. S. Parel
Author:
L. Danos
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