Optimization Of Double Skin Facades For Buildings: An Office Building Example In Ankara-Turkey

There are about 16 millions building in Turkey. The total energy consumption of these buildings is approximately 3.48x105 GJ. The energy consumption of the office buildings having HVAC systems can be stated as 150 kWh/m2.year.Turkey is in the warm climate band and the day time outside air temperature in summer (May ~ September) is about 30C. Parallel to the increasing comfort demands, energy consumption also increases. These factors make the necessity for increasing energy efficiency of buildings apparent.
In this study, a life cycle analysis is introduced for an office building having double skin obtained by dressing a second glace faade to the two main faades and for the situation of natural ventilating and night cooling in summer. In according to the results from the analysis, approximately 45% energy saving is possible by this application. Consequently the energy use will be reduced from 203 kWh / m2.year to 106 kWh / m2 year.