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- Title
Modelling of solar insolation on arrayed buildings with shading effect considered.
- Authors
Lotfy, Eslam Reda
- Abstract
Solar radiation plays a dominant role in numerous engineering systems. Shading, resulting from various objects, modulates the amount and distribution of irradiance received by surfaces. This research aimed to develop a model for assessing the spatial and temporal distribution of insolation on urban surfaces affected by building shadows. A Scilab code was implemented to compute building shadows using a direct mathematical algorithm. The results indicate that the front façade of the building is exposed to the sun for approximately 35–40% of the year's hours, collecting more than 0.5 MW-hr/m 2 annually. It was observed that building shadows effectively mitigate solar radiation, especially when the building width is between 0.25 and 3 times the spacing between buildings. The ground exhibited the lowest shading factor value and the highest sensitivity to latitude. These findings are intended to serve as a reference for urban planners.
- Subjects
ENGINEERING systems; URBAN planners; URBAN heat islands; LATITUDE; SOLAR radiation; EARTH'S orbit
- Publication
Sādhanā: Academy Proceedings in Engineering Sciences, 2024, Vol 49, Issue 2, p1
- ISSN
0256-2499
- Publication type
Article
- DOI
10.1007/s12046-024-02509-9