Minimizing solar insolation in high-rise buildings through self-shaded form

High-rise buildings experiences overheating conditions especially in hot humid tropics. For a high-rise built form, vertical surfaces receive the most critical impact from solar radiation. This study examines the effect of geometric high-rise forms against the amount of solar insolation received by...

Full description

Saved in:

Bibliographic Details
Main Author:	Chia, Sok Ling
Format:	Thesis
Language:	English
Published:	2008
Subjects:	TH Building construction
Online Access:	http://eprints.utm.my/id/eprint/36223/1/ChiaSokLingMFAB2007.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.36223
record_format	uketd_dc
spelling	my-utm-ep.362232020-02-05T07:05:56Z Minimizing solar insolation in high-rise buildings through self-shaded form 2008 Chia, Sok Ling TH Building construction High-rise buildings experiences overheating conditions especially in hot humid tropics. For a high-rise built form, vertical surfaces receive the most critical impact from solar radiation. This study examines the effect of geometric high-rise forms against the amount of solar insolation received by the external surfaces, and the generation of self-shading strategies where high-rise buildings form are selfshaded from solar insolation during the required period. The study is divided into two main parts and conducted using building simulation program ‘ECOTECT V5.2b’. The first part is on the evaluation of the effect of geometric shapes based on annual total solar insolation received on the entire exposed vertical surfaces. Circular and square generic shapes with their variations in width-to-length ratio and building orientations are generated. Circular and square shapes with width-to-length ratio 1:1 received the lowest annual total solar insolation. They are selected as the optimum shapes. The second part is the modification of stepped inverted geometry method involving four different depths of self-shading projections to building height. Each floor are experimented based on direct and diffuse components of solar insolation received on vertical surfaces for three different design-days. The simulation results revealed that significant reduction of 60% direct solar insolation could be achieved by self-shading projection ratio of 1.00, 0.75 and 0.25 on east, west, north and south wall respectively. Circular shape with varying wall orientations and curvatures performed better compared to square shape. With appropriate attentions given to the proportion of geometric shapes and self-shading projection ratio, the impact of solar radiation on high-rise building shape can be minimised. Hence, it can be assumed that the energy consumption used for cooling load can also be reduced. 2008 Thesis http://eprints.utm.my/id/eprint/36223/ http://eprints.utm.my/id/eprint/36223/1/ChiaSokLingMFAB2007.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:72881?queryType=vitalDismax&query=Minimizing+solar+insolation+in+high-rise+buildings+through+self-shaded+form&public=true masters Universiti Teknologi Malaysia, Faculty of Built Environment Faculty of Built Environment
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TH Building construction
spellingShingle	TH Building construction Chia, Sok Ling Minimizing solar insolation in high-rise buildings through self-shaded form
description	High-rise buildings experiences overheating conditions especially in hot humid tropics. For a high-rise built form, vertical surfaces receive the most critical impact from solar radiation. This study examines the effect of geometric high-rise forms against the amount of solar insolation received by the external surfaces, and the generation of self-shading strategies where high-rise buildings form are selfshaded from solar insolation during the required period. The study is divided into two main parts and conducted using building simulation program ‘ECOTECT V5.2b’. The first part is on the evaluation of the effect of geometric shapes based on annual total solar insolation received on the entire exposed vertical surfaces. Circular and square generic shapes with their variations in width-to-length ratio and building orientations are generated. Circular and square shapes with width-to-length ratio 1:1 received the lowest annual total solar insolation. They are selected as the optimum shapes. The second part is the modification of stepped inverted geometry method involving four different depths of self-shading projections to building height. Each floor are experimented based on direct and diffuse components of solar insolation received on vertical surfaces for three different design-days. The simulation results revealed that significant reduction of 60% direct solar insolation could be achieved by self-shading projection ratio of 1.00, 0.75 and 0.25 on east, west, north and south wall respectively. Circular shape with varying wall orientations and curvatures performed better compared to square shape. With appropriate attentions given to the proportion of geometric shapes and self-shading projection ratio, the impact of solar radiation on high-rise building shape can be minimised. Hence, it can be assumed that the energy consumption used for cooling load can also be reduced.
format	Thesis
qualification_level	Master's degree
author	Chia, Sok Ling
author_facet	Chia, Sok Ling
author_sort	Chia, Sok Ling
title	Minimizing solar insolation in high-rise buildings through self-shaded form
title_short	Minimizing solar insolation in high-rise buildings through self-shaded form
title_full	Minimizing solar insolation in high-rise buildings through self-shaded form
title_fullStr	Minimizing solar insolation in high-rise buildings through self-shaded form
title_full_unstemmed	Minimizing solar insolation in high-rise buildings through self-shaded form
title_sort	minimizing solar insolation in high-rise buildings through self-shaded form
granting_institution	Universiti Teknologi Malaysia, Faculty of Built Environment
granting_department	Faculty of Built Environment
publishDate	2008
url	http://eprints.utm.my/id/eprint/36223/1/ChiaSokLingMFAB2007.pdf
_version_	1747816412789866496

Minimizing solar insolation in high-rise buildings through self-shaded form

Similar Items