The Numerical Study Of Airflow And Airquality Impact In Ventilation Style On Indoor

With the improvement of the living standard, there is a greater demand for a better life quality and a growing concern and awareness over indoor air quality. The problems of the indoor air quality and human comfortableness are studied in this paper based on the approach that adopts CFD numerical simulation to study indoor air distribution, to evaluate the indoor air quality and provide a theoretical basis and design reference for the indoor air distribution in the future.This paper chooses the representative style of air ventilation system in the air-conditioner room in summer and simulates the velocity fields,temperature fields , PMV, PDD and CO2 concentration fields by Airpak which is only used with the HVAC field.During the simulation, indoor zero-equation turbulence model is used; then we discretize equations by Finite Volume Method; at last, indoor airflow field is calculated by SIMPLE algorithm for different situations.