Numerical simulation of airflow distribution and indoor air quality

According to several models with the same supply air temperature and velocity and different airflow distribution,Airpak,which was the HVAC simulation software,was applied to numerically simulating the indoor velocity field,the temperature field,CO2 concentration field and the air age.The indoor air quality and human comfort in the work area under the influence of the air distribution was studied,and the energy utilization coefficient was used to evaluate design effect.The results showed that in the same supply air temperature and air velocity,displacement ventilation provides the best air quality,and energy utilization factor is also the largest.The conclusions provided the research basis for optimization design and comfort evaluation of airflow distribution in air-conditioning room.