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Analysis on the Effects of Building Coverage Ratio and Floor Space Index on Urban Climate  

Yeo, In-Ae (Dept. of Architectural Eng., Pusan National University)
Yee, Jurng-Jae (Faculty of Architectural Design and Engineering, Dong-A University)
Yoon, Seong-Hwan (School of Architecture, Pusan National University)
Publication Information
Journal of the Korean Solar Energy Society / v.29, no.3, 2009 , pp. 19-27 More about this Journal
Abstract
In this study, Urban Climate Simulation was performed by 3-Dimensional Urban Canopy Model. The characteristics of urban climate were analyzed combining artificial land coverage, building size, heat production from the air conditioning and topographic conditions as physical variables which affects urban climate characteristics. The results are as follows. (1) The aspects of the urban climatal change is derived to be related to the combination of the building coverage ratio, building height and shading area. According to the building height, the highest temperature was increased by $2.1^{\circ}C$ from 2-story to 5-story building and the absolute humidity by 2.1g/kg maximum and the wind velocity by 1.0m/s was decreased from 2-story to 20-story building. (2) Whole heat generation was influenced by the convective sensible heat at the lower building height and by the artificial heat generation at the higher one over 20-story building influence to some extent of the building coverage ratio. The effect of the altitude is not more considerable than the other variables as below $1^{\circ}C$ of the air temperature. In the last, deriving the combination of building coverage and building height is needed to obtain effectiveness of the urban built environment planning at the point of the urban climate. These simulation results need to be constructed as DB which shows urban quantitative thermal characters by the urban physical structure. These can be quantitative base for suggesting combinations of the building and urban planning features at the point of the desirable urban thermal environment as well as analyzing urban climate phenomenon.
Keywords
Urban Energy; Urban Climate; Urban Heat Island; UCSS(Urban Climate Simulation System); Urban Canopy Model; Building Coverage Ratio; Floor Space Index;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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