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Mitigating the scale of urban heat Island effect in cities with implementation of green roofs

Show simple item record Wijerathne, SN Halwatura, RU 2016-12-05T09:46:23Z 2016-12-05T09:46:23Z
dc.description.abstract Variations of the urban heat island effect is different from city to city. To understand the variations in the heat island effect, in the center of the Colombo City the capital of Sri Lanka, with the locations of buildings and roads, the temperature and humidity was measured with the height. A detailed analysis was done to find the specific height of which the heat island effect prevails and the temperature variations with height. With that a theoretical model was developed to identify the possibilities of controlling the heat island effect. The model was developed with replacing existing flat roof areas with green roofs, in randomly selected area (0.5Km2)in the Colombo City. These findings were coupled with the energy balance in the selected area and with a computer simulation. The reduction in the temperature in the canopy air layer in the roof level was calculated. The results show that there is a variation in the heat island effect with height. When, the vertical distance increases from the heating surfaces, the heat island effect is lesser. The heat island effect can be reduced with the implementation of green roofs in the Colombo City. en_US
dc.language.iso en en_US
dc.subject Heat island effect, Green roofs, Sensible heat, Energy balance, Computer simulation en_US
dc.title Mitigating the scale of urban heat Island effect in cities with implementation of green roofs en_US
dc.type Article-Abstract en_US
dc.identifier.year 2012 en_US
dc.identifier.journal Annual Transactions of IESL : The Institution of Engineers, Sri Lanka en_US
dc.identifier.issue Pt. B en_US
dc.identifier.volume 01 en_US
dc.identifier.pgnos pp. 120 - 126 en_US

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