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Dependence of one-minute global irradiance probability density distributions on hourly irradiation

Author

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  • Tovar, J
  • Olmo, F.J
  • Batlles, F.J
  • Alados-Arboledas, L

Abstract

This paper analyzes the behavior of one minute global irradiance distributions as a function of hourly average solar global irradiance. For this purpose, we have used the clearness index kt which describes the atmospheric transmittance. Our interest is in characterizing the intrahourly variability of solar global irradiance and the behavior of the instantaneous values as a function of hourly values of solar global irradiance. The distributions are unimodal and show a marked symmetry around a central value that is close to the corresponding hourly average value. The probability density functions have been modeled using functions based on the Boltzmann statistic used in recent studies of the one minute distributions of kt conditioned to the optical air mass. These functions provide good fit of the distributions and are analytically integrable and can be inverted analytically. The one minute global irradiance data used in this study have been recorded during a three year period in a radiometric station located in south eastern Spain.

Suggested Citation

  • Tovar, J & Olmo, F.J & Batlles, F.J & Alados-Arboledas, L, 2001. "Dependence of one-minute global irradiance probability density distributions on hourly irradiation," Energy, Elsevier, vol. 26(7), pages 659-668.
    • Handle: RePEc:eee:energy:v:26:y:2001:i:7:p:659-668
    DOI: 10.1016/S0360-5442(01)00024-X
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    Cited by:

    1. Oktay, Z. & Coskun, C. & Dincer, I., 2011. "A new approach for predicting cooling degree-hours and energy requirements in buildings," Energy, Elsevier, vol. 36(8), pages 4855-4863.
    2. Coskun, C., 2010. "A novel approach to degree-hour calculation: Indoor and outdoor reference temperature based degree-hour calculation," Energy, Elsevier, vol. 35(6), pages 2455-2460.
    3. Fernández-Peruchena, Carlos M. & Gastón, Martín, 2016. "A simple and efficient procedure for increasing the temporal resolution of global horizontal solar irradiance series," Renewable Energy, Elsevier, vol. 86(C), pages 375-383.
    4. Martínez-Chico, M. & Batlles, F.J. & Bosch, J.L., 2011. "Cloud classification in a mediterranean location using radiation data and sky images," Energy, Elsevier, vol. 36(7), pages 4055-4062.
    5. Roberto Langella & Daniela Proto & Alfredo Testa, 2016. "Solar Radiation Forecasting, Accounting for Daily Variability," Energies, MDPI, vol. 9(3), pages 1-17, March.
    6. Alonso, J. & Batlles, F.J. & López, G. & Ternero, A., 2014. "Sky camera imagery processing based on a sky classification using radiometric data," Energy, Elsevier, vol. 68(C), pages 599-608.

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