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TECHNICAL PAPERS

Comparative Study of Four Shadow Band Diffuse Irradiance Correction Algorithms for Almerı́a, Spain

[+] Author and Article Information
G. López

Department Ingenierı́a Eléctrica y Térmica, EPS La Rábida, Universidad de Huelva, Ctra. Palos de la Frontera s/n., Huelva (Spain)

T. Muneer, R. Claywell

School of Engineering, Napier University, 10 Colinton Road, Edinburgh EH10 5DT, UK

J. Sol. Energy Eng 126(2), 696-701 (May 04, 2004) (6 pages) doi:10.1115/1.1666895 History: Received January 01, 2003; Revised October 01, 2003; Online May 04, 2004
Copyright © 2004 by ASME
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References

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Muneer,  T., and Zhang,  X., 2002, “A New Method for Correcting Shadow Band Diffuse Irradiance Data,” ASME, 124 , pp. 34–43.
Batlles, F. J., Barbero, J., López, G., Pérez, M., Rodrigo, F., and Rubio, M. A., 1998, “Fundamentos de la radiación solar y aspectos climatológicos de Almerı́a, 1990–1996,” Ed. Servicio de Publicaciones de la Universidad de Almerı́a (in Spanish).
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CIE, 1994, “Guide to Recommended Practice of Daylight Measurement,” Technical Report CIE 108-1994. Commission International de l’Eclairage, TC 3.09.
 Bush, 2000, “Characterization of Thermal Effects in Pyranometers: A Data Correction Algorithm for Improved Measurement of Surface Insolation,” J. Atmos. Ocean. Technol., 17, pp. 165–175.
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Figures

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Uncorrected shadow band diffuse fraction versus clearness index after Filter #1-#3 were applied
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Frequency (left) and accumulated frequency (right) of the filtered data against clearness index
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Frequency (left) and accumulated frequency (right) of the filtered data against true diffuse irradiance
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Frequency (left) and accumulated frequency (right) of the filtered data against solar altitude
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Uncorrected measurements of shadow band diffuse irradiance against true diffuse irradiance
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Shadow band diffuse irradiance corrected using (a) Drummond, (b) LeBaron, (c) Batlles and (d) Muneer models against true diffuse irradiance
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Residual differences against clearness index
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Residual differences against solar altitude

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