Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.solener.2008.02.008
Title: Microclimatic modeling of the urban thermal environment of Singapore to mitigate urban heat island
Authors: Priyadarsini, R.
Hien, W.N. 
Wai David, C.K.
Keywords: CFD
Façade materials
Geometry
Temperature
Urban heat island
Velocity
Issue Date: 2008
Source: Priyadarsini, R., Hien, W.N., Wai David, C.K. (2008). Microclimatic modeling of the urban thermal environment of Singapore to mitigate urban heat island. Solar Energy 82 (8) : 727-745. ScholarBank@NUS Repository. https://doi.org/10.1016/j.solener.2008.02.008
Abstract: This study investigates the urban heat island effect in Singapore and examines the key factors causing this effect. The possibilities of improving heat extraction rate by optimizing air flow in selected hot spots were explored. The effect of building geometry, façade materials and the location of air-conditioning condensers on the outdoor air temperature was explored using computational fluid dynamics (CFD) simulations. It was found that at very low wind speeds, the effect of façade materials and their colours was very significant and the temperature at the middle of a narrow canyon increased up to 2.5 °C with the façade material having lower albedo. It was also found that strategically placing a few high-rise towers will enhance the air flow inside the canyon thereby reducing the air temperature. Adopting an optimum H/W ratio for the canyons increased the velocity by up to 35% and reduced the corresponding temperature by up to 0.7 °C. © 2008 Elsevier Ltd. All rights reserved.
Source Title: Solar Energy
URI: http://scholarbank.nus.edu.sg/handle/10635/45772
ISSN: 0038092X
DOI: 10.1016/j.solener.2008.02.008
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