摘要
为了研究置换通风房间内污染源的位置对室内空气品质的影响,采用K-ε紊流方程模型,以CO2为颗粒污染物的物理模型,对二维物理模型房间内气流的浓度场进行数值模拟,选取了几种典型工况下室内空气品质的重要指标进行分析对比,分析得出,置换通风下污染源在高度上的差别对室内空气品质的影响,要较置换通风下污染源相对于送风口的相对位置差别的影响要大.对置换通风空调房间设计时污染源位置的安排,具有重要的指导意义.
In order to study the influence of pollution sources on indoor air quality under condition of displacement ventilation, K - ε turbulent model and physical model which treats CO2 as the granulate pollutant are applied to give a numerical simulation analysis of the density field of airflow in a room with two-dimen- sional 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.
出处
《河南理工大学学报（自然科学版）》
CAS
2006年第5期355-358,共4页
Journal of Henan Polytechnic University（Natural Science）
关键词
室内空气品质
置换通风
浓度场
K-ε紊流方程模型
数值模拟
indoor air quality
displacement ventilation
density field
K - ε turbulent model
numerical simulation
