摘要
室内空气品质与人的感知以及个体差异紧密相连,表征了室内环境要素对人们工作与生活的舒适度。室内空气品质不佳将对人的身心健康和工作可靠性产生巨大的不利影响。在现代建筑中,暖通空调系统设计或运行不当以及各类污染源产生的污染物是导致室内空气品质出现问题的两大方面。CFD方法通过求解统一形式的描述室内流动、传热和污染物产生与扩散的偏微分方程组,可以得到室内各个位置的风速、温度、污染物浓度等参数,为从整场的角度来评价室内空调环境空气品质提供了可能,已发展成为评价室内空气品质的强有力手段。本文着重探讨CFD(ComputationalFluidDynamics)技术在评价室内空调环境空气品质上的应用现状与实施方法要点,并给出了实例。
IAQ(Indoor Air Quality) is the comfortable evaluation of indoors environmental factors affecting people's living and working effect and has much to do with people's feeling and individnal differences.Poor IAQ will have great harm to people's health and working reliability.Incorrect design and operation of airconditioning system and indoor pollutants are the two main factors to cause IAQ problem in modern buildings.Solving a set of differential equations that describe indoor air flow,heat transfer and pollutant diffusion,CFD(computational fluid dynamics) method produces distribution of velocity,temperature and pollutant density and makes it possible to evaluate IAQ differences everywhere.It has become powerful means to evaluate IAQ.This paper focuses on how to use CFD method to evaluate IAQ in indoor airconditioning environment and provides a numerical example.
出处
《华东船舶工业学院学报》
2003年第2期84-87,共4页
Journal of East China Shipbuilding Institute(Natural Science Edition)
基金
院青年基金项目(院编Q2000211)