The Influence of Pollution Sources on the Indoor Air Quality under Conditions of Displacement Ventilation

In order to study the influence of pollution sources on indoor air quality under condition of displacement ventilation,K-e turbulent model and physical model which treats CO_2 as the granulate pollutant are applied to give a numerical simulation analysis of the density field of airflow in a room with two-dimensional physical model.By choosing and analyzing the IAQ's important indexes in several typical calculated operating models,we can get a conclusion that disparity resulting from height of pollution source has greater influence on indoor air quality than that resulting from the position of blowholes.This will have an important effect on the arrangement for the positions of pollution sources while devising a displacement ventilation air-conditioned room.