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Urban heat island and wind flow characteristics of a tropical city

Rajagopalan,P, Lim,KC and Jamei,E 2014, Urban heat island and wind flow characteristics of a tropical city, Solar energy, vol. 107, pp. 159-170, doi: 10.1016/j.solener.2014.05.042.

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Title Urban heat island and wind flow characteristics of a tropical city
Author(s) Rajagopalan,P
Lim,KC
Jamei,E
Journal name Solar energy
Volume number 107
Start page 159
End page 170
Total pages 12
Publisher Elsevier
Place of publication Oxford, England
Publication date 2014-09
ISSN 0038-092X
Keyword(s) Geometry modification
Thermal comfort
Tropical
UHI
Wind speed
Science & Technology
Technology
Energy & Fuels
OUTDOOR THERMAL COMFORT
ENERGY-CONSUMPTION
STREET CANYON
HONG-KONG
ENVIRONMENT
CLIMATE
IMPACT
BUILDINGS
DYNAMICS
TEMPERATURE
Summary  Urban Heat Island (UHI) has become a growing concern to the quality of densely built urban environments, particularly in tropical cities. Wind speed has widely been reported to have decreased the intensity of heat island effect in urban areas. The cooling effect of the wind helps to mitigate the adverse effects of heat island on the micro climate and human thermal comfort. This paper investigates the existence of heat island in Muar, one of the fast growing cities in southern part of Malaysia and its possible causes, and then examines the effects of different urban geometry on the wind flow. The results of this study indicate that the chaotic development in Muar has caused reduced ventilation in urban canyons. The heat island intensity in the city center was recorded as 4. °C during the day and 3.2. °C during the night. Investigation of various urban geometry modifications showed that step up configuration was the most effective geometry as it can distribute the wind evenly allowing the wind to reach even the leeward side of each building. © 2014 Elsevier Ltd.
Language eng
DOI 10.1016/j.solener.2014.05.042
Field of Research 129999 Built Environment and Design not elsewhere classified
Socio Economic Objective 970112 Expanding Knowledge in Built Environment and Design
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30067915

Document type: Journal Article
Collection: School of Architecture and Built Environment
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