Optimization of Carbon Dioxide Removal Efficiency in a Displacement Ventilation System (OR-16-C003)

Displacement ventilation systems have found increased usage in recent years and have been shown to reduce energy consumption while satisfying the required indoor air quality (IAQ) standard. The system takes advantage of thermal buoyancy effect to displace warm air and light containments above the occupant breathing zone. This makes the displacement ventilation system a good candidate for cooling spaces with high ceilings. Despite the advantages of this system there are still questions on the system ability in removing CO2, which has a higher molecular weight than air. The current paper investigates the CO2 concentration from occupants in an interior office with a displacement ventilation system.