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Title: Nocturnal heat island effect in urban residential developments of Hong Kong
Authors: Giridharan, Renganathan
Lau, S.S.Y.
Ganesan, S.
Keywords: Nocturnal urban heat island effect
Design variables
Urban geometry
Surface albedo
Sky view factor
Height-to-floor area ratio
High-rise and high density and Hong Kong
Issue Date: 2005
Publisher: © Elsevier
Citation: GIRIDHARAN, R., LAU, S.S.Y. and GANESAN, S., 2005. Nocturnal heat island effect in urban residential developments of Hong Kong. Energy and Buildings, 37 (9), pp. 964–971.
Abstract: In hot humid climate, mitigating summer time nocturnal Urban Heat Island (UHI) effect is important in order to reduce the spaceconditioning cost. Case studies of Belchers, Wah Fu-1 and -2 reveal the maximum nocturnal UHI in the order of 1.3 8C within an estate, and 0.4 8C between estates. The variables such as surface albedo, height-to-floor area ratio, sky view factor (SVF) and altitude are capable of explaining the nocturnal UHI in the case study areas with an explanatory power of 0.8. Although, during summer, the nocturnal UHI intensity is low relative to daytime UHI, thermal distress is high in night especially in Wah Fu-1 and -2. The paper will discuss the influence of the design variables on nocturnal UHI and its significance in relation to daytime UHI in the case study areas.
Description: This article is closed access. It was published in the journal, Energy and Buildings [© Elsevier] and the definitive version is available at: www.elsevier.com\locate\enbuild
Version: Closed access
DOI: 10.1016/j.enbuild.2004.12.005
URI: https://dspace.lboro.ac.uk/2134/5733
ISBN: 0378-7788
Appears in Collections:Closed Access (Architecture, Building and Civil Engineering)

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