11 September 2008 Modeling IR radiative loss from Eppley PSP pyranometers
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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.
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Frank Vignola, Frank Vignola, Chuck Long, Chuck Long, Ibrahim Reda, Ibrahim Reda, } "Modeling IR radiative loss from Eppley PSP pyranometers", Proc. SPIE 7046, Optical Modeling and Measurements for Solar Energy Systems II, 70460E (11 September 2008); doi: 10.1117/12.796457; https://doi.org/10.1117/12.796457

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