EXPERIMENTAL AND NUMERICAL INVESTIGATIONS FOR EVALUATINGCONTAMINANT REMOVAL EFFECTIVENESS IN A MIXING VENTILATED ROOM

Abstract

For occupants and facility managers of the buildings, assessment of risks related to indoor air quality (IAQ), has become a very complex and challenging issue. To meet the requirements of better indoor air quality, HVAC engineers, world-wide, are facing many challenges related to system design and operation because of development of variety of air distribution systems and innovative diffusers. The demand for appropriate ventilation systems which provide contaminant free healthy air to the occupants is constantly growing.In this context detailed study related to differentventilation systems like displacement ventilation, mixing ventilation and UFAD ventilation systems has become inevitable. The performance of these ventilation systems is affected by variables like air changes per hour, contaminant particle sizes and contaminant source locations.