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Optimum tilt angle and orientation of solar surfaces in Abu Dhabi, UAE

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  • Jafarkazemi, Farzad
  • Saadabadi, S. Ali

Abstract

It is the aim of this paper to evaluate the effect of orientation on the optimum tilt angle of solar collectors and solar panels and the amount of solar radiation. Solar radiation on the inclined surface was estimated by an empirical method and applying the measured total solar radiation on the horizontal surface. Solar radiation was calculated at different tilt angles (−20 ≤ β ≤ 90) and different orientations (−90 ≤ γ ≤ 90). The yearly optimum tilt angle (βopt = 22°) was almost close to Abu Dhabi latitude (φ = 24.4°) and the optimum orientation angle was in the south direction. The results showed that monthly and yearly optimum tilt angles reduced by the diversion of surface orientation from the south. Monthly optimum tilt angles for south-facing surface changes from −9° in June to 52° in December. Based on the calculation results, it is advised to change the tilt angle, at least twice a year.

Suggested Citation

  • Jafarkazemi, Farzad & Saadabadi, S. Ali, 2013. "Optimum tilt angle and orientation of solar surfaces in Abu Dhabi, UAE," Renewable Energy, Elsevier, vol. 56(C), pages 44-49.
    • Handle: RePEc:eee:renene:v:56:y:2013:i:c:p:44-49
    DOI: 10.1016/j.renene.2012.10.036
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    References listed on IDEAS

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    1. Islam, M.D. & Kubo, I. & Ohadi, M. & Alili, A.A., 2009. "Measurement of solar energy radiation in Abu Dhabi, UAE," Applied Energy, Elsevier, vol. 86(4), pages 511-515, April.
    2. Islam, M.D. & Alili, A.A. & Kubo, I. & Ohadi, M., 2010. "Measurement of solar-energy (direct beam radiation) in Abu Dhabi, UAE," Renewable Energy, Elsevier, vol. 35(2), pages 515-519.
    3. Lave, Matthew & Kleissl, Jan, 2011. "Optimum fixed orientations and benefits of tracking for capturing solar radiation in the continental United States," Renewable Energy, Elsevier, vol. 36(3), pages 1145-1152.
    4. El Chaar, Lana & Lamont, Lisa A., 2010. "Global solar radiation: Multiple on-site assessments in Abu Dhabi, UAE," Renewable Energy, Elsevier, vol. 35(7), pages 1596-1601.
    5. Khalil, A. & Alnajjar, A., 1995. "Experimental and theoretical investigation of global and diffuse solar radiation in the United Arab Emirates," Renewable Energy, Elsevier, vol. 6(5), pages 537-543.
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