Study of Influence of Indoor Air Supply Pattern on IAQ

According to some surveys and spot field investigation, the indoor air quality is worrying, which have serious health hazards to employee working there. And the 2 key factors influencing indoor air quality are the pollution of harmful gas mixture and poor thermal environment, both of which caused by unreasonable ventilation design. In this paper we discussed 3 type of air supply using method of CFD simulation with the verification experiment. And the research result demonstrates that the pattern of air supply from ceiling is the most effective one among 3 air supply types, which can provide a relatively optimized indoor air quality: cleaner air and better temperature distribution. This result is helpful to the later ventilation design work of public areas.