IMPACT OF DESIGN ON AIRFLOW PATH IN CAVITY LAYER OF AIRFLOW WINDOW ON THERMAL PERFORMANCE: Development of high-performance window system for office buildings applied dynamic insulation technique

In office buildings, reducing the heat load and improving the thermal comfort in the perimeter area are important issues. Airflow window (AFW) have been widely practiced in office buildings. The impact of ventilation path design in the cavity layer of AFW is discussed in this paper. In addition, a high-performance window which is applied dynamic insulation (DI) technique is developed. CFD analysis was carried out to evaluate the thermal performance of the window system. It is confirmed that the window system we developed improves the solar blocking performance and the thermal insulation performance.