Effective planning of building ventilation, whether passive or mechanically assisted, requires detailed information about external air temperature. This paper presents experimental evidence from Adelaide, Australia, that demonstrates substantial intra-urban variations in air temperature, whose magnitude changes across the urban space and as a function of time. A canyon air temperature computer model (CAT) capable of predicting air temperature in an urban street canyon for extended periods in a variety of weather conditions, on the basis of meteorological time series recorded at an open site exposed to the same meso-scale conditions, is then applied to illustrate the changes in the Climatic Cooling Potential (CCP) of selected urban locations when the effect of site-specific microclimate is taken into account.
The Implications for Building Ventilation of the Spatial and Temporal Variability of Air Temperature in the Urban Canopy Layer
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Year:
2008
Bibliographic info:
The International Journal of Ventilation, Vol. 7 N°1, June 2008