AIVC - Air Infiltration and Ventilation Centre

Search form


You are here

Home  |  External Fixed Solar Shading

Mechanical cooling energy reduction for commercial buildings in hot climates: Effective use of external solar shading incorporating effects on daylight contribution

John P Brittle, Mahroo M Eftekhari, Steven K Firth, 2013
External Fixed Solar Shading | daylighting | energy consumption | Carbon Dioxide Production
Bibliographic info: Building Simulation, 2013, Chambéry, France
Languages: English

This paper investigates the effectiveness of multiple external shading devices and identifies the most effective fixed external shading configurations for commercial building types in hot climates. Daylight contribution is also analysed in detail in order to monitor the daylighting factor reduction including uniformity for each shading configuration. Existing dynamic thermal modeling software is used to completing analysis on a theoretical open office plan building. Simulation results indicate that multiple angled external shading is the most effective solution for commercial buildings in hot climates. The calculated diurnal cooling load reduction for East, South and West elevations are 46.20%, 41.16% and 46.53% respectively. Furthermore, daytime cooling load (kW) reduction is reduced by 17.80% using the optimum solution. All dynamic thermal simulations are compared against a base case to clearly show possible cooling energy reduction (MWh) and carbon dioxide emissions (CO2) associated with cooling system for single storey open office building. 

Related publications

This report summarizes the work of the initial working phase of IEA ECB Annex 62 Ventil
Maria Kolokotroni, Per Heiselberg, Lorenzo Pagliano, Jie Han, Regina Bokel, Peter Holzer, Annamaria Belleri, Denmark
This summary report presents insights on recommendations into how ventilative cooling i
Christoffer Plesner, Flourentzos Flourentzou, Guoqiang Zhang, Hilde Breesch, Per Heiselberg, Michal Pomianowski, Peter Holzer, Maria Kolokotroni, Annamaria Belleri, Denmark
Overheating in buildings is an emerging challenge at the design stage and during operat
Peter Holzer, Theofanis Psomas, Denmark