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Causes of urban heat island in Singapore

Rajagopalan, Priyadarsini and Wong, Nyukhien 2009, Causes of urban heat island in Singapore, in PLEA 2009 : Proceedings of the 26th International Conference on Passive and Low Energy Architecture, PLEA, Quebec, Canada, pp. 1-6.

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Title Causes of urban heat island in Singapore
Author(s) Rajagopalan, Priyadarsini
Wong, Nyukhien
Conference name Passive and Low Energy Architecture (26th : 2009 : Quebec City, Canada)
Conference location Quebec City, Canada
Conference dates 22-24 June 2009
Title of proceedings PLEA 2009 : Proceedings of the 26th International Conference on Passive and Low Energy Architecture
Editor(s) [Unknown]
Publication date 2009
Conference series Passive and Low Energy Architecture Conference
Start page 1
End page 6
Publisher PLEA
Place of publication Quebec, Canada
Keyword(s) urban heat island
CFD
geometry
facade materials
temperature
velocity
Summary In low-latitude cities like Singapore, urban heat islands contribute to the urban dweller s summer discomfort and significantly increased air conditioning loads. This study investigates the key factors causing urban heart island in Singapore. The possibilities of improving heat extraction rate by optimizing air flow in selected hot spots were explored. The eject of building geometry and the location of air conditioning condensers on the outdoor air temperature was investigated using Computational Fluid Dynamics (CFD) simulations, It was found that strategically placing a few blocks of high-rise towers will actually hem to enhance the velocity within the canyon thereby reducing the air temperature. Air-conditioning units spaced widely apart do not contribute much to the heat built up inside a canyon when the geometry is simple and as long as there is some wind flow within the canyon.
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ISBN 9782763789392
9782763789408
Language eng
Field of Research 120202 Building Science and Techniques
Socio Economic Objective 960301 Climate Change Adaptation Measures
HERDC Research category E1 Full written paper - refereed
Copyright notice ©2009, PLEA
Persistent URL http://hdl.handle.net/10536/DRO/DU:30019798

Document type: Conference Paper
Collections: School of Architecture and Built Environment
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