Development of a new urban heat island modelling tool: Kent Vale case study
OPEN ACCESS
Loading...
Author / Producer
Date
2017
Publication Type
Conference Paper
ETH Bibliography
yes
Citations
Altmetric
OPEN ACCESS
Data
Abstract
Urban heat island is intensified by anthropogenic activities and heat in conjunction with the built-up urban area, which absorbs more solar radiation during daytime and releases more heat during nighttime than rural areas. Air cooling systems in Singapore, as one of the anthropogenic heat sources, reject heat into the vicinity and consequently affect urban microclimate. In this paper, a new urban heat island modeling tool is developed to simulate stack effect of split type air-conditioners on high rise buildings and solar radiation induced thermal environment. By coupling the Computational Fluid Dynamics (CFD) program with the solar radiation model and perform parallel computing of conjugate heat transfer, the tool ensures both accuracy and efficiency in simulating air temperature and air relative humidity. The annual cycle of sun pathway in Singapore is well simulated and by decreasing the absorptivity or increasing the reflectivity and thermal conductivity of the buildings, the thermal environment around buildings could be improved.
Permanent link
Publication status
published
External links
Editor
Book title
Journal / series
Volume
108
Pages / Article No.
225 - 234
Publisher
Elsevier
Event
International Conference on Computational Science (ICCS 2017)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Urban heat island; stack effect; sensitivity analysis; solar radiation; thermal environment
Organisational unit
08058 - Singapore-ETH Centre (SEC) / Singapore-ETH Centre (SEC)
08060 - FCL / FCL