Building cluster and shading in urban canyon for hot dry climate Part 2: Shading simulations
Bourbia, F. and Awbi, H. B. (2004) Building cluster and shading in urban canyon for hot dry climate Part 2: Shading simulations. Renewable Energy, 29 (2). pp. 291-301. ISSN 0960-1481
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To link to this article DOI: 10.1016/s0960-1481(03)00171-x
Under low latitude conditions, minimisation of solar irradiance within the urban environment may often be an important criterion in urban design. This can be achieved when the obstruction angle is large (high H/W ratio, H = height, W = width). Solar access to streets can always be decreased by increasing H/W to larger values. It is shown in this paper that the street canyon orientation (and not only the H/W ratio) has a considerable effect on solar shading and urban microclimate. The paper demonstrates through a series of shading simulation and temperature measurements that a number of useful relationships can be developed between the geometry and the microclimate of urban street canyons. These relationships are potentially helpful to assist in the formulation of urban design guidelines governing street dimensions and orientations for use by urban designers.
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