Welcome to Open Science
Contact Us
Home Books Journals Submission Open Science Join Us News
Performance of Fixed Shading Devices on Daylight Penetration in the Tropical City Like Dhaka
Current Issue
Volume 2, 2015
Issue 3 (June)
Pages: 21-27   |   Vol. 2, No. 3, June 2015   |   Follow on         
Paper in PDF Downloads: 35   Since Aug. 28, 2015 Views: 1563   Since Aug. 28, 2015
Authors
[1]
Mahbuba Afroz Jinia, Dept. of Architecture, Stamford University Bangladesh, Dhaka, Bangladesh.
[2]
Syma Haque Trisha, Dept. of Architecture, Bangladesh University of Engineering & Technology, Dhaka, Bangladesh.
[3]
Taqir Mahmood, Dept. of Architecture, Stamford University Bangladesh, Dhaka, Bangladesh.
Abstract
External shading devices have been utilized very extensively in the buildings of tropics to control the amount of daylight and direct sun light flowing into interior spaces. It is now widely accepted that architects should encompass the environmental task of reducing fossil fuel energy consumption in response to climate change. Day light is a blessing of nature. Effective daylight reduces the need of artificial light at day time and thus reduces the overhead cost of energy. Proper luminous environment confirms sufficient daylight which is very good for both physical and mental health. But too much or unguided daylight cause glare and light pollution. For the purpose of examiningthe day lighting design in a residential building in the tropics likeBangladesh, this paper discussesthe effects of different types of fixed external shading devices on daylight flow intobuildings. The investigation was carried out by the use of ECOTECT for day lightingsimulations. A building having south facing openings has been fundamentally chosen as case study. The luminous level of different points in the study room has been collected as field survey. After studying the existing day light condition, daylight simulations have been conducted using several types of shading devices based on the study area. More importance has been given on useful daylight illumination for visual tasks to study the effects of different types of shading devices.
Keywords
Shading Device, Luminous Level, Daylight Illumination, Simulation, Dhaka
Reference
[1]
JOHN MARDALJEVIC and AZZA NABIL. 2005. Useful daylight illuminace: A new paradigm for assessing daylight in buildings. Lighting Research and Technology, 37(1).
[2]
ANISUR RAHMAN. 2007. Performance Evaluation of Shading Devices Used In Tall Office Buildings of Dhaka City, M. Arch. Thesis, (unpublished) Department of Architecture, Bangladesh University of Engineering and Technology, Dhaka.
[3]
SHAILY RUNGTA & VIPUL SINGH. 2011. Design Guide: Horizontal Shading devices and Light Shelves.
[4]
O.H. KOENIGSBERGER. 1975.Manual of Tropical Housing and Building
[5]
B. GIVONI. 1969.Man, Climate and Architecture.
[6]
AL-MOFEEZ and ABDUL. 1991. Insulation in the Opaque Envelope: Effects on Thermal Performance of Residential Building in Hot-arid Climates, Dissertation for degree of Doctor of Philosoph,Texas A&M University, UMI dissertation information service, Michigan.
[7]
DUBOIS,M. C.2000. A Simple Chart To Design Shading Devices Considering The Window Solar Angle Dependent Properties, Proceedings of the Third ISES Europe Solar Congress: Eurosun 2000, 19-22 June, Copenhagen (Denmark).
[8]
STEEMERS,K.,andBAKER.N.2002. Daylight Design of Buildings, James & James Ltd, London
[9]
HIEN,W.N.,andISTIADJI,A.D.2003. Effects Of External Shading Devices On day lighting And Natural Ventilation, proceedings of Eighth International IBPSA Conference, Eindhoven, Netherlands
[10]
S. H. TARIQ & M. A. JINIA. 2013. Performanceof Fixed Horizontal Shading Devices in South Facing Residential Buildings in Dhaka, Global Science and Technology Journal, Vol. 1. No. 1. July 2013, Issue. Pp.88-99.
Open Science Scholarly Journals
Open Science is a peer-reviewed platform, the journals of which cover a wide range of academic disciplines and serve the world's research and scholarly communities. Upon acceptance, Open Science Journals will be immediately and permanently free for everyone to read and download.
CONTACT US
Office Address:
228 Park Ave., S#45956, New York, NY 10003
Phone: +(001)(347)535 0661
E-mail:
LET'S GET IN TOUCH
Name
E-mail
Subject
Message
SEND MASSAGE
Copyright © 2013-, Open Science Publishers - All Rights Reserved