Building cluster and shading in urban canyon for hot dry climate - Part 1: Air and surface temperature measurements
Bourbia, F. and Awbi, H. B. (2004) Building cluster and shading in urban canyon for hot dry climate - Part 1: Air and surface temperature measurements. Renewable Energy, 29 (2). pp. 249-262. ISSN 0960-1481
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To link to this article DOI: 10.1016/s0960-1481(03)00170-8
Under low latitude conditions, minimization of solar radiation within the urban environment may often be a desirable criterion in urban design. The dominance of the direct component of the global solar irradiance under clear high sun conditions requires that the street solar access must be small. It is well known that the size and proportion of open spaces has a great influence on the urban microclimate This paper is directed towards finding the interaction between urban canyon geometry and incident solar radiation. The effect of building height and street width on the shading of the street surfaces and ground for different orientations have been examined and evaluated. It is aimed to explore the extent to which these parameters affect the temperature in the street. This work is based on air and surface temperature measurements taken in different urban street canyons in EL-Oued City (hot and and climate), Algeria. In general, the results show that there are less air temperature variations compared to the surface temperature which really depends on the street geometry and sky view factor. In other words, there is a big correlation between the street geometry, sky view factor and surface temperatures.
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