On the Performance of Diffuse Ceiling Ventilation in Classrooms: A Pre-Occupancy Study at a School in Southern Sweden

The implementation and application of diffused ceiling ventilation (DCV) is gradually gaining momentum, especially in Denmark, Finland, the Netherlands. In countries such as Sweden, limited despite favorable conditions for implementation. current study investigates performance DCV mixing a pre-occupancy field newly renovated classrooms Southern Sweden. Two at school were installed with diffuse while rest had ventilation. objective was to compare evaluate terms indoor environmental quality parameters thermal comfort, air indexes, airflow, temperature distribution. Pre-occupancy measurements performed two similar room characteristics, one running under other DCV. Constant anemometers, thermocouples, INNOVA comfort used measure speeds, temperature, respectively. Tracer gas measurements, SF6, assess quality. Additionally acoustic conducted benefits on reducing noise. results demonstrate that offers but has better Indoor very homogeneous showing tendencies short circuit This demonstrates potential Swedish schools minimal system modification existing distribution systems.