Effects of Diffuser Arrangements for Mixing and Displacement Ventilations on Indoor Environmental Qualities in Two Adjacent Spaces (LB-17-C017)

A number of studies have shown that air distribution systems on the thermal comfort of occupants can vary depending on locations of diffusers and return outlets and types of ventilation systems. However, few studies have focused on air distribution strategies for serving multiple zones and their effects on local air quality and thermal comfort. Simulation results indicate that temperature distributions of two rooms were a strong function of ventilation type. However, indoor air quality of two rooms was significantly affected by both a ventilation type and an operation strategy. The results suggest that careful consideration is needed for designers and managers in selecting and operating air conditioning system to maximize the ventilation effectiveness and the thermal comfort in multiple zones.