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The Efficacy of Shading Design in Commercial Buildings in The Semi-arid Climate of Lahore; Focusing on The Geometry of Horizontal Shade
Author(s):
1. M. Rashid: Department of Architecture, University of Management and Technology, Lahore, Pakistan
2. A. Jalil: Department of Architecture, University of Engineering & Technology Lahore, Pakistan
3. S.Gulzar: Department of Architecture, University of Management and Technology, Lahore, Pakistan
4. A.M. Malik: Department of Architecture, University of Management and Technology, Lahore, Pakistan
Abstract:
Abuilding envelope acts as a barrier between outside and inside environmental conditions. A window provides the weakest thermal link in the building envelope between outdoor and indoor environment as it is least resistant to the outdoor environmental conditions. An optimal shading device can manage this situation by increasing the resistivity of the window which is important in semi-arid climates such as that of Lahore, Pakistan. This paper focuses on the geometry of horizontal shade that is desirable in Lahore's climate and its efficacy in terms of heat gain, daylight level, energy efficiency and thermal comfort in commercial buildings. The depth of the horizontal shade is calculated and verified by mathematical models as a first step in this research. The second step is the simulation which is conducted to evaluate the performance of designed horizontal shade on a window with 40% WWR and double low-E bronze glass on east, south and west orientations. The results show that the efficacy of a horizontal shade is the most for a southern orientation in climate of Lahore
Page(s): 1-10
DOI: DOI not available
Published: Journal: Technical Journal, Volume: 24, Issue: 2, Year: 2019
Keywords:
Commercial Buildings , Semiarid Climate , Heat Gain , Horizontal Shade
References:
[1] Rashid M.,Jalil A.,Gulzar S.,Malik A. M. .2019 .The Efficacy of Shading Design in Commercial Buildings in The Semi-arid Climate of Lahore ; Focusing on The Geometry of Horizontal Shade. Technical Journal Uet Taxila, 24(2) : 1-10.
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