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Proceedings Paper

Modeling IR radiative loss from Eppley PSP pyranometers
Author(s): Frank Vignola; Chuck Long; Ibrahim Reda
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Paper Abstract

A method has been developed to estimate IR radiative losses using solar radiation and meteorological data without the need for pyrgeometer data. The modeled IR radiative losses are not as accurate as that obtained using pyrgeometer information, but 95% of the modeled IR radiative losses are with a few W/m2 of the actual IR radiative losses. Currently this method is limited to having a least some period when pyrgeometers measurements are available. More testing and evaluations are needed at a number of locations to test the general applicability of the model developed.

Paper Details

Date Published: 11 September 2008
PDF: 9 pages
Proc. SPIE 7046, Optical Modeling and Measurements for Solar Energy Systems II, 70460E (11 September 2008); doi: 10.1117/12.796457
Show Author Affiliations
Frank Vignola, Univ. of Oregon (United States)
Chuck Long, Pacific Northwest National Lab. (United States)
Ibrahim Reda, National Renewable Energy Lab. (United States)

Published in SPIE Proceedings Vol. 7046:
Optical Modeling and Measurements for Solar Energy Systems II
Benjamin K. Tsai, Editor(s)

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