This paper summarizes the results of a simulation analysis to determine the effectiveness of daylighting in reducing electrical energy consumption for office buildings in Egypt. Specifically, the impact on daylighting performance is investigated of window size, building size, daylighting control, and glazing type for three geographical locations in Egypt. It was determined that a window to wall area ratio of 0.20 minimizes the total annual electricity use for office buildings in three Egyptian locations, Cairo, Alexandria, and Aswan. A simplified analysis method is developed based on the analysis results to estimate the annual electrical energy savings attributed to daylighting.
Issue Section:
Research Papers
1.
Housing and Building Research Center
, Organization for Energy Planning
, and PA Consulting Group
, “Energy Efficiency Residential Building Draft Code
,” prepared for the Ministry of Housing, Utilities and Urban Communities, and Ministry of Electricity and Energy, Arab Republic of Egypt (2003).2.
Erhorn
, H.
, and Szerman
, M.
, Documentation of the Software Package
, ADELINE, Stuttgart, Germany, 1994.3.
LBL, SUPERLITE software, http://eetd.lbl.govhttp://eetd.lbl.gov, Lawrence Berkeley Lab, US Department of Energy, Berkeley, CA, 1993.
4.
DOE
, DOE-21E Daylighing Supplement, Lawrence Berkeley Lab, US Department of Energy, Berkeley, CA, 1993.5.
ASHRAE/IESNA Standard 90.1-1999. American Society of Heating, Refrigerating, and Air Conditioning Engineers, Atlanta, GA., 1999.
6.
The IESNA Lighting Handbook: Reference and Application
, 9th ed., edited by Mark S.
Rea
, Illuminating Engineering Society of North America
, New York, (2000, Chap. 10.7.
Krarti
, M.
, Erickson
, P.
, and Hillman
, T.
, “A Simplified Method to Estimate Energy Daylighting of Artificial Lighting Use from Daylighting
” Build. Environ.
0360-132340
, pp. 747
–754
.Copyright © 2005
by American Society of Mechanical Engineers
You do not currently have access to this content.
