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Development of synthetic hemispheric projections suitable for assessing the sky view factor on vertical planes

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  • Ramírez-Faz, J.
  • López-Luque, R.
  • Casares, F.J.

Abstract

The solar radiation balance in buildings has a significant impact on their energy needs, as well as on their potential BIPV energy production. It also influences the potentials of daylight, its healthiness and sustainability. Solar radiation models for urban environments require the characterization of the obstruction degree to which each point is subjected due to other buildings, topography, vegetation, etc. This characterization is carried out with the parameter known as sky view factor (SVF). In this paper, we deepen and extend the study of SVF on vertical surfaces that have a high level of obstruction. This paper aims to present a general mathematical method to obtain projection equations in vertical planes, which allow the study of SVF as a surface ratio. It is also proposed an adequate projection for vertical planes under the hypothesis of angular distribution of diffuse radiance based on Moon-Spencer’s model.

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  • Ramírez-Faz, J. & López-Luque, R. & Casares, F.J., 2015. "Development of synthetic hemispheric projections suitable for assessing the sky view factor on vertical planes," Renewable Energy, Elsevier, vol. 74(C), pages 279-286.
    • Handle: RePEc:eee:renene:v:74:y:2015:i:c:p:279-286
    DOI: 10.1016/j.renene.2014.08.025
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    References listed on IDEAS

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    1. Rakovec, Jože & Zakšek, Klemen, 2012. "On the proper analytical expression for the sky-view factor and the diffuse irradiation of a slope for an isotropic sky," Renewable Energy, Elsevier, vol. 37(1), pages 440-444.
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    Cited by:

    1. L. M. Fernández-Ahumada & J. Ramírez-Faz & R. López-Luque & A. Márquez-García & M. Varo-Martínez, 2019. "A Methodology for Buildings Access to Solar Radiation in Sustainable Cities," Sustainability, MDPI, vol. 11(23), pages 1-17, November.
    2. Arias-Rosales, Andrés & LeDuc, Philip R., 2020. "Comparing View Factor modeling frameworks for the estimation of incident solar energy," Applied Energy, Elsevier, vol. 277(C).
    3. Nasrollahi, Nazanin & Shokri, Elham, 2016. "Daylight illuminance in urban environments for visual comfort and energy performance," Renewable and Sustainable Energy Reviews, Elsevier, vol. 66(C), pages 861-874.

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