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The Effect of Collector Shading and Masking on Optimized PV Field Designs

Author

Listed:
  • Avi Aronescu

    (School of Electrical Engineering, Tel Aviv University, Tel Aviv 69978, Israel)

  • Joseph Appelbaum

    (School of Electrical Engineering, Tel Aviv University, Tel Aviv 69978, Israel)

Abstract

Photovoltaic (PV) solar fields are deployed with multiple rows. The second and subsequent rows are subject to shading and masking by the rows in front. The direct beam incident radiation on the second row is affected by shading and the diffuse incident radiation is affected by masking, expressed by sky view factor. Hence, all rows, besides the first one, receive lower incident radiation. The design of PV fields must take into account the decrease in the incident radiation caused by these two effects. The paper investigates by simulation the annual incident diffuse, direct beam and global radiation on the first and on the second row for optimized PV fields at two sites: Tel Aviv, Israel, with low diffuse component, and Lindenberg–Germany monitoring station, with a high diffuse component. The study emphasizes the importance of the diffuse incident radiation on the energy loss of the PV field. The percentage annual global energy loss due to shading and masking on the second row amounts to 1.49% in Tel Aviv and 0.46% in Lindenberg. Isotropic and anisotropic diffuse models were considered. The calculated diffuse incident energy for the isotropic model is lower than the values for anisotropic model by about 8% in Tel Aviv and 3.75% in Lindenberg.

Suggested Citation

  • Avi Aronescu & Joseph Appelbaum, 2019. "The Effect of Collector Shading and Masking on Optimized PV Field Designs," Energies, MDPI, vol. 12(18), pages 1-10, September.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:18:p:3471-:d:265473
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    References listed on IDEAS

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    1. Aronescu, A. & Appelbaum, J., 2017. "Design optimization of photovoltaic solar fields-insight and methodology," Renewable and Sustainable Energy Reviews, Elsevier, vol. 76(C), pages 882-893.
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    Cited by:

    1. Elmalky, Adham M. & Araji, Mohamad T., 2023. "Multi-objective problem of optimizing heat transfer and energy production in algal bioreactive façades," Energy, Elsevier, vol. 268(C).
    2. Saeed Swaid & Joseph Appelbaum & Avi Aronescu, 2021. "Shading and Masking of PV Collectors on Horizontal and Sloped Planes Facing South and North—A Comparative Study," Energies, MDPI, vol. 14(13), pages 1-15, June.
    3. Meng, B. & Loonen, R.C.G.M. & Hensen, J.L.M., 2022. "Performance variability and implications for yield prediction of rooftop PV systems – Analysis of 246 identical systems," Applied Energy, Elsevier, vol. 322(C).

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