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Optimum tilt angle for solar collectors used in Cyprus

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  • Ibrahim, D.

Abstract

Flat-plate solar collectors are widely used in Cyprus for water heating purposes. The roofs of nearly all the residential premises on the island are fitted with such collectors. This article examines the theoretical aspects of choosing a tilt angle for the solar flat-plate collectors used in Cyprus and makes recommendations on how the collected energy can be increased by varying the tilt angle. In this paper, the collector surface is assumed to be facing South and the calculations are based upon the measured values of daily global solar radiation on a horizontal surface on the island. The beam and diffuse components of the horizontal global radiation are then estimated and the solar radiation on a tilted surface is calculated as the angle of tilt is varied from 0° to 90°. It is shown that very nearly optimal energy can be collected if the angle of tilt is varied seasonally, four times a year.

Suggested Citation

  • Ibrahim, D., 1995. "Optimum tilt angle for solar collectors used in Cyprus," Renewable Energy, Elsevier, vol. 6(7), pages 813-819.
    • Handle: RePEc:eee:renene:v:6:y:1995:i:7:p:813-819
    DOI: 10.1016/0960-1481(95)00070-Z
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    References listed on IDEAS

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    1. Nijegorodov, N. & Devan, K.R.S. & Jain, P.K. & Carlsson, S., 1994. "Atmospheric transmittance models and an analytical method to predict the optimum slope of an absorber plate, variously oriented at any latitude," Renewable Energy, Elsevier, vol. 4(5), pages 529-543.
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    Cited by:

    1. Chang, Tian Pau, 2009. "The gain of single-axis tracked panel according to extraterrestrial radiation," Applied Energy, Elsevier, vol. 86(7-8), pages 1074-1079, July.
    2. Miroslav Rimar & Marcel Fedak & Andrii Kulikov & Olha Kulikova & Martin Lopusniak, 2022. "Analysis and CFD Modeling of Thermal Collectors with a Tracker System," Energies, MDPI, vol. 15(18), pages 1-28, September.
    3. Bakirci, Kadir, 2012. "General models for optimum tilt angles of solar panels: Turkey case study," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(8), pages 6149-6159.
    4. Haixiang Zang & Mian Guo & Zhinong Wei & Guoqiang Sun, 2016. "Determination of the Optimal Tilt Angle of Solar Collectors for Different Climates of China," Sustainability, MDPI, vol. 8(7), pages 1-16, July.
    5. Ullah, Asad & Imran, Hassan & Maqsood, Zaki & Butt, Nauman Zafar, 2019. "Investigation of optimal tilt angles and effects of soiling on PV energy production in Pakistan," Renewable Energy, Elsevier, vol. 139(C), pages 830-843.
    6. Le Roux, W.G., 2016. "Optimum tilt and azimuth angles for fixed solar collectors in South Africa using measured data," Renewable Energy, Elsevier, vol. 96(PA), pages 603-612.
    7. Rehman, Naveed ur & Uzair, Muhammad, 2020. "Optimizing the inclined field for solar photovoltaic arrays," Renewable Energy, Elsevier, vol. 153(C), pages 280-289.
    8. Tang, Runsheng & Wu, Tong, 2004. "Optimal tilt-angles for solar collectors used in China," Applied Energy, Elsevier, vol. 79(3), pages 239-248, November.
    9. Koussa, M. & Cheknane, A. & Hadji, S. & Haddadi, M. & Noureddine, S., 2011. "Measured and modelled improvement in solar energy yield from flat plate photovoltaic systems utilizing different tracking systems and under a range of environmental conditions," Applied Energy, Elsevier, vol. 88(5), pages 1756-1771, May.
    10. Marucci, Alvaro & Cappuccini, Andrea, 2016. "Dynamic photovoltaic greenhouse: Energy balance in completely clear sky condition during the hot period," Energy, Elsevier, vol. 102(C), pages 302-312.
    11. Hafez, A.Z. & Soliman, A. & El-Metwally, K.A. & Ismail, I.M., 2017. "Tilt and azimuth angles in solar energy applications – A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 77(C), pages 147-168.

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