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The effect of geometric shape and building orientation on minimizing solar insolation on high-rise buildings in hot humid climate

Chia, Sok Ling and Ahmad, Mohd. Hamdan and Ossen, Dilshan Remaz (2007) The effect of geometric shape and building orientation on minimizing solar insolation on high-rise buildings in hot humid climate. Journal of Construction in Developing Countries, 12 (1). pp. 27-38. ISSN 1823-6499

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Abstract

High-rise buildings are experiencing overheating condition in hot humid climate. For a high-rise built form, vertical surfaces are the most critical to theimpact of solar radiation. This study examines the effect of geometric shapes on the total solar insolation received by high-rise buildings. Two generic buildingshapes (square and circular) have been studied with variations in width-to-length ratio (W/L ratio) and building orientation using the computer simulationprogram ECOTECT V5.2. The results revealed that the circular shape with W/L ratio 1:1 is the most optimum shape in minimising total solar insolation. The squareshape with W/L ratio 1:1 in a north-south orientation receives the lowest annual total solar insolation compared to other square shapes. This optimum shape(CC 1:1) receives the highest amount of solar insolation on the east-orientated wall, followed by the south-, west- and north-orientated walls respectively. Thisstudy guides designers on choosing optimum geometric shape and appropriate orientation for high-rise buildings.

Item Type:Article
Uncontrolled Keywords:solar insolation, high-rise, geometric shape
Subjects:N Fine Arts > NA Architecture
Divisions:Built Environment
ID Code:7969
Deposited By: Norshiela Buyamin
Deposited On:30 Mar 2009 04:21
Last Modified:15 Jan 2014 06:51

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