UPM Institutional Repository

Daylight ratio, luminance, and visual comfort assessments in typical Malaysian hostels


Citation

Dahlan, Nur Dalilah and Jones, Phil J. and Alexander, Donald K. and Salleh, Elias @ Ilias and Alias, J. (2009) Daylight ratio, luminance, and visual comfort assessments in typical Malaysian hostels. Indoor and Built Environment, 18 (4). pp. 319-335. ISSN 1420-326X; ESSN: 1423-0070

Abstract

Conventional tropical building designs are experiencing a new paradigm in their environmental response to improve lighting ambiance and occupants’ visual comfort through the exploitation of daylighting. However, it is important for architects to understand that flaws in daylighting strategies could lead to disadvantages as they could hinder vision, cause discomfort, increase interior heat gain, and result in excessive energy demands. The objective of this study was to assess how occupants’ perceived their visual conditions through daylight ratio and luminance level measurements. Measurements were conducted throughout a 2-month period starting from 12th May to 3rd July 2007. Three case studies were conducted at typical Malaysian hostels located in the Klang Valley. Those selected were: the Twelfth Residential College, Universiti Malaya (H1); the Eleventh Residential College, Universiti Putra Malaysia (H2); and Murni Student Apartments, Universiti Tenaga Nasional (H3). The daylighting source in all these case studies were from side-lit windows. Overall, the findings suggested that occupants were at ease with the level of daylighting available in their rooms even though rooms that were shaded by projecting balconies (i.e.,: H1) were dimmer than the rooms that were not shaded (i.e.,: H2 and H3).


Download File

[img]
Preview
PDF (Abstract)
Daylight ratio, luminance, and visual comfort assessments in typical Malaysian hostels.pdf

Download (49kB) | Preview
Official URL or Download Paper: http://ibe.sagepub.com/content/18/4/319

Additional Metadata

Item Type: Article
Divisions: Faculty of Design and Architecture
DOI Number: https://doi.org/10.1177/1420326X09337041
Publisher: SAGE Publications
Keywords: Daylight ratio; Illumination; Luminance; Objective measurement; Side-lit window; Subjective measurement; Visual comfort
Depositing User: Nabilah Mustapa
Date Deposited: 13 Apr 2016 03:14
Last Modified: 13 Apr 2016 03:14
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1177/1420326X09337041
URI: http://psasir.upm.edu.my/id/eprint/42333
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item