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Comments on solar azimuth angle

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  • Soulayman, S.

Abstract

Three appropriate relationships for determining the solar azimuth angle with respect to the south direction were considered for giving some comments on the available algorithms for solar azimuth angle calculation. The application of each of the trigonometric functions (sinγs, cosγs and tanγs, where γs is the solar azimuth) for determining γs is discussed with regard to the simplicity and generality. It was found that cosγs could be modified in a very simple way in order to be general in determining the solar azimuth angle all over the year. The modified cosγs was compared with those available in literature formulas and formulations with regard to the generality and simplicity. A comparison with available results is provided.

Suggested Citation

  • Soulayman, S., 2018. "Comments on solar azimuth angle," Renewable Energy, Elsevier, vol. 123(C), pages 294-300.
    • Handle: RePEc:eee:renene:v:123:y:2018:i:c:p:294-300
    DOI: 10.1016/j.renene.2018.02.063
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    References listed on IDEAS

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    1. Sproul, Alistair B., 2007. "Derivation of the solar geometric relationships using vector analysis," Renewable Energy, Elsevier, vol. 32(7), pages 1187-1205.
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    Cited by:

    1. Soulayman, S. & Hammoud, M., 2018. "Performance of the east–west oriented single-axis tracked collector," Energy, Elsevier, vol. 155(C), pages 1090-1092.
    2. Wu, Jing & Zhang, Ling & Liu, Zhongbing & Luo, Yongqiang & Wu, Zhenghong & Wang, Pengcheng, 2020. "Experimental and theoretical study on the performance of semi-transparent photovoltaic glazing façade under shaded conditions," Energy, Elsevier, vol. 207(C).
    3. Maria Nunez Munoz & Erica E. F. Ballantyne & David A. Stone, 2023. "Assessing the Economic Impact of Introducing Localised PV Solar Energy Generation and Energy Storage for Fleet Electrification," Energies, MDPI, vol. 16(8), pages 1-27, April.
    4. Ali Saleh Aziz & Mohammad Faridun Naim Tajuddin & Mohd Rafi Adzman & Makbul A. M. Ramli, 2021. "Impacts of albedo and atmospheric conditions on the efficiency of solar energy: a case study in temperate climate of Choman, Iraq," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(1), pages 989-1018, January.
    5. Zhang, Taiping & Stackhouse, Paul W. & Macpherson, Bradley & Mikovitz, J. Colleen, 2021. "A solar azimuth formula that renders circumstantial treatment unnecessary without compromising mathematical rigor: Mathematical setup, application and extension of a formula based on the subsolar poin," Renewable Energy, Elsevier, vol. 172(C), pages 1333-1340.

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