Anidolic daylighting system for efficient daylighting in deep plan office building in the tropics

Daylight is a natural resource for space illumination. Providing more available daylight in buildings is highly desirable, not only for energy efficiency but also to enhance the occupants’ performance and well-being. Daylight through window is common solution to lit the indoor space, but only provid...

Full description

Saved in:

Bibliographic Details
Main Author:	Roshan, Mohsen
Format:	Thesis
Language:	English
Published:	2014
Subjects:	QE Geology
Online Access:	http://eprints.utm.my/id/eprint/78228/1/MohsenRoshanPFAB2014.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.78228
record_format	uketd_dc
spelling	my-utm-ep.782282018-07-30T08:51:28Z Anidolic daylighting system for efficient daylighting in deep plan office building in the tropics 2014-08 Roshan, Mohsen QE Geology Daylight is a natural resource for space illumination. Providing more available daylight in buildings is highly desirable, not only for energy efficiency but also to enhance the occupants’ performance and well-being. Daylight through window is common solution to lit the indoor space, but only provides limited depth of room space. Anidolic Daylighting System (ADS) is one particularly promising technology to be used for transferring daylight into deeper interior spaces. This research determines the ADS variables that are applicable under tropical climate according to modified duct shapes, duct width, duct length and distributor configuration. Experimental scale model and Integrated Environmental Solutions (IES) computer simulation were employed in conducting the research. Physical scale model (1:10) was used to validate the simulation tool and to determine the appropriate orientation. Subsequently, the ADS was simulated in different variables of duct shapes, duct width, duct length and distributor configuration in open plan office. The analysis of results for daylight quantity was done based on absolute Work Plan Illuminance (WPI), daylight factor and daylight ratio, as well as WPI uniformity for daylight quality.The results illustrated that the ADS performed well for all orientations, but its performance in the South orientation was better than other orientations. It was shown that the developed ADS by rectangular duct shape and three meter duct width can transfer daylight as deep as 12.5m and 20m from window wall in overcast and intermediate sky conditions respectively. Moreover, the results demonstrated that effective daylighting depth could be supported with acceptable performance by developed ADS until 12.5m in both quality and quantity under intermediate sky. The new findings give insights for architects, engineers and built environment scientists to reach the complete potential of ADS in visual comfort as well as energy saving. 2014-08 Thesis http://eprints.utm.my/id/eprint/78228/ http://eprints.utm.my/id/eprint/78228/1/MohsenRoshanPFAB2014.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:97989 phd doctoral Universiti Teknologi Malaysia, Faculty of Built Environment Faculty of Built Environment
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QE Geology
spellingShingle	QE Geology Roshan, Mohsen Anidolic daylighting system for efficient daylighting in deep plan office building in the tropics
description	Daylight is a natural resource for space illumination. Providing more available daylight in buildings is highly desirable, not only for energy efficiency but also to enhance the occupants’ performance and well-being. Daylight through window is common solution to lit the indoor space, but only provides limited depth of room space. Anidolic Daylighting System (ADS) is one particularly promising technology to be used for transferring daylight into deeper interior spaces. This research determines the ADS variables that are applicable under tropical climate according to modified duct shapes, duct width, duct length and distributor configuration. Experimental scale model and Integrated Environmental Solutions (IES) computer simulation were employed in conducting the research. Physical scale model (1:10) was used to validate the simulation tool and to determine the appropriate orientation. Subsequently, the ADS was simulated in different variables of duct shapes, duct width, duct length and distributor configuration in open plan office. The analysis of results for daylight quantity was done based on absolute Work Plan Illuminance (WPI), daylight factor and daylight ratio, as well as WPI uniformity for daylight quality.The results illustrated that the ADS performed well for all orientations, but its performance in the South orientation was better than other orientations. It was shown that the developed ADS by rectangular duct shape and three meter duct width can transfer daylight as deep as 12.5m and 20m from window wall in overcast and intermediate sky conditions respectively. Moreover, the results demonstrated that effective daylighting depth could be supported with acceptable performance by developed ADS until 12.5m in both quality and quantity under intermediate sky. The new findings give insights for architects, engineers and built environment scientists to reach the complete potential of ADS in visual comfort as well as energy saving.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Roshan, Mohsen
author_facet	Roshan, Mohsen
author_sort	Roshan, Mohsen
title	Anidolic daylighting system for efficient daylighting in deep plan office building in the tropics
title_short	Anidolic daylighting system for efficient daylighting in deep plan office building in the tropics
title_full	Anidolic daylighting system for efficient daylighting in deep plan office building in the tropics
title_fullStr	Anidolic daylighting system for efficient daylighting in deep plan office building in the tropics
title_full_unstemmed	Anidolic daylighting system for efficient daylighting in deep plan office building in the tropics
title_sort	anidolic daylighting system for efficient daylighting in deep plan office building in the tropics
granting_institution	Universiti Teknologi Malaysia, Faculty of Built Environment
granting_department	Faculty of Built Environment
publishDate	2014
url	http://eprints.utm.my/id/eprint/78228/1/MohsenRoshanPFAB2014.pdf
_version_	1747817938419712000

Anidolic daylighting system for efficient daylighting in deep plan office building in the tropics

Similar Items