Displacement ventilation (DV) is a room air distribution strategy where conditioned outdoor air is supplied at a low velocity from air supply diffusers located near floor level and extracted above the occupied zone, usually at ceiling height.

DISPLACEMENT VENTILATION SYSTEMS IN INDUSTRIAL BUILDINGS J .A. Kristensson ABSTRACT In the past 15 years, displacement ventilation systems with floor-level-mounted air delivery devices have gained extensive use in the Scandinavian countries. This paper discusses the design principles and advantages of displace­ ment ventilation systems.

2024年11月1日 · Displacement ventilation is a buoyancy-driven air distribution strategy exploiting the convective heat sources’ thermal plumes to push the contaminants towards the ceiling. This review paper first analyses several aspects of the interaction between the displacement ventilation system and the enclosed space.

Displacement Ventilation supplies air at a low face velocity (typically 40 fpm) into the occupied zone and at a temperature around 10°F cooler than the set point. The increase in supply air temperature combined with the low velocity airflow results in superior thermal comfort.

2020年1月1日 · Compared with traditional mixing ventilation, the displacement ventilation system is popular with better air quality, ventilation efficiency, and thermal comfort under the combination of pollutant and heat source 7. For large space buildings, such as concert halls and workshops, displacement ventilation system is much more applied, while for ...

displacement ventilation systems for small offices, large offices with partitions, classrooms, and industrial workshops under U.S. thermal and flow boundary conditions, such as a

Displacement ventilation uses a slow-moving stream of fresh air from the floor to displace the waste air, which is forced to the ceiling and then out of the room through exhaust panels. This creates two levels of air in a room, with cool fresh air in the occupied lower part of the room, and warm waste air in the unoccupied upper part of the room.

Diferent types of air-supply systems are said in their literature to employ "displacement ventilation." To avoid confusion, the following classification is suggested: • Systems utilizing unidirectional low turbulence flow, with air supplied at a low velocity, and supply diffusers and exhaust as openings with large surfaces, such per forated panels.

A displacement ventilation system can be designed to fulfill requirements for sustainable and energy-efficient buildings, promoting a healthy and productive indoor climate. Installations should be evaluated when displacement ventilation is a potential solution

2015年10月16日 · Displacement ventilation (DV) is a low-velocity, non-turbulent cooling system for commercial buildings that is not always fully understood. Learn when and where these DV systems can be best used. Examine the important, yet not always apparent, best practices of displacement ventilation systems.