Integration of Horizontal Light Pipe and Shading Systems in Office Building in the Tropics

Many high-rise office buildings in the tropics have a full-glazed façade and a deep open-plan space. Without any external shading, the office space has a non-uniform daylight distribution and glare problem. A deep open-plan space design also causes insufficient daylight levels in the area distant fr...

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Autores principales:	Feny Elsiana, Sri Nastiti N. Ekasiwi, I Gusti Ngurah Antaryama
Formato:	article
Lenguaje:	EN
Publicado:	Tamkang University Press 2021
Materias:	blinds daylight performance horizontal light pipe light shelf simulation Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Physics QC1-999
Acceso en línea:	https://doaj.org/article/52214a48e27f4544ae7112381377c54c
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id	oai:doaj.org-article:52214a48e27f4544ae7112381377c54c
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spelling	oai:doaj.org-article:52214a48e27f4544ae7112381377c54c2021-11-23T15:25:30ZIntegration of Horizontal Light Pipe and Shading Systems in Office Building in the Tropics10.6180/jase.202202_25(1).00242708-99672708-9975https://doaj.org/article/52214a48e27f4544ae7112381377c54c2021-11-01T00:00:00Zhttp://jase.tku.edu.tw/articles/jase-202202-25-1-0024https://doaj.org/toc/2708-9967https://doaj.org/toc/2708-9975Many high-rise office buildings in the tropics have a full-glazed façade and a deep open-plan space. Without any external shading, the office space has a non-uniform daylight distribution and glare problem. A deep open-plan space design also causes insufficient daylight levels in the area distant from the building perimeter. Previous studies about Horizontal Light Pipe (HLP) mainly focused on system improvement in capturing, transporting, and distributing daylight into deep space. Integration of HLP as a light transport system that can deliver daylight deeper into building interiors and shading systems consist of Light Shelf (LS), blinds that can redirect and reduce the excessive daylight level near the side window are proposed and studied. The research objective is to explain the daylight performance of the integration of HLP and shading systems. The research method is experimental with Radiance-based simulation as a tool. Surabaya (latitude 7.38° S and longitude 112.79° E), a typical city in the Tropics, was chosen for the simulation. Daylight level, daylight distribution, and Daylight Glare Probability (DGP) of office room with East-facing window are compared with office room with HLP and shading systems. The results showed that the integration of HLP and shading systems increased the average illuminance level in the deep area to reach 135 % and reduced the average illuminance level in the area near the side window reached 55 %. HLP and shading systems also increase the daylight distribution inside space and slightly improve the DGP but still in the range of imperceptible for building users.Feny ElsianaSri Nastiti N. EkasiwiI Gusti Ngurah AntaryamaTamkang University Pressarticleblindsdaylight performancehorizontal light pipelight shelfsimulationEngineering (General). Civil engineering (General)TA1-2040Chemical engineeringTP155-156PhysicsQC1-999ENJournal of Applied Science and Engineering, Vol 25, Iss 1, Pp 231-243 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	blinds daylight performance horizontal light pipe light shelf simulation Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Physics QC1-999
spellingShingle	blinds daylight performance horizontal light pipe light shelf simulation Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Physics QC1-999 Feny Elsiana Sri Nastiti N. Ekasiwi I Gusti Ngurah Antaryama Integration of Horizontal Light Pipe and Shading Systems in Office Building in the Tropics
description	Many high-rise office buildings in the tropics have a full-glazed façade and a deep open-plan space. Without any external shading, the office space has a non-uniform daylight distribution and glare problem. A deep open-plan space design also causes insufficient daylight levels in the area distant from the building perimeter. Previous studies about Horizontal Light Pipe (HLP) mainly focused on system improvement in capturing, transporting, and distributing daylight into deep space. Integration of HLP as a light transport system that can deliver daylight deeper into building interiors and shading systems consist of Light Shelf (LS), blinds that can redirect and reduce the excessive daylight level near the side window are proposed and studied. The research objective is to explain the daylight performance of the integration of HLP and shading systems. The research method is experimental with Radiance-based simulation as a tool. Surabaya (latitude 7.38° S and longitude 112.79° E), a typical city in the Tropics, was chosen for the simulation. Daylight level, daylight distribution, and Daylight Glare Probability (DGP) of office room with East-facing window are compared with office room with HLP and shading systems. The results showed that the integration of HLP and shading systems increased the average illuminance level in the deep area to reach 135 % and reduced the average illuminance level in the area near the side window reached 55 %. HLP and shading systems also increase the daylight distribution inside space and slightly improve the DGP but still in the range of imperceptible for building users.
format	article
author	Feny Elsiana Sri Nastiti N. Ekasiwi I Gusti Ngurah Antaryama
author_facet	Feny Elsiana Sri Nastiti N. Ekasiwi I Gusti Ngurah Antaryama
author_sort	Feny Elsiana
title	Integration of Horizontal Light Pipe and Shading Systems in Office Building in the Tropics
title_short	Integration of Horizontal Light Pipe and Shading Systems in Office Building in the Tropics
title_full	Integration of Horizontal Light Pipe and Shading Systems in Office Building in the Tropics
title_fullStr	Integration of Horizontal Light Pipe and Shading Systems in Office Building in the Tropics
title_full_unstemmed	Integration of Horizontal Light Pipe and Shading Systems in Office Building in the Tropics
title_sort	integration of horizontal light pipe and shading systems in office building in the tropics
publisher	Tamkang University Press
publishDate	2021
url	https://doaj.org/article/52214a48e27f4544ae7112381377c54c
work_keys_str_mv	AT fenyelsiana integrationofhorizontallightpipeandshadingsystemsinofficebuildinginthetropics AT srinastitinekasiwi integrationofhorizontallightpipeandshadingsystemsinofficebuildinginthetropics AT igustingurahantaryama integrationofhorizontallightpipeandshadingsystemsinofficebuildinginthetropics
_version_	1718416207340634112

Integration of Horizontal Light Pipe and Shading Systems in Office Building in the Tropics

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