摘要
随着人们对改善工作以及生活环境的要求越来越迫切,室内环境成为人们越来越关注的问题,置换通风因其舒适度高、空气品质良好、节能等优点,得到了国内外学者的广泛关注。不同送回风方式对主动式置换通风的效果具有很大影响,利用计算流体力学(CFD)方法,针对某住宅建筑三种通风方式下的室内速度场、室内CO2浓度、室内PM2.5浓度等进行了模拟研究。研究结果表明,单送单回方式通风时,通风效果明显弱于多送单回与多送多回方式,而室内CO2浓度和室内PM2.5浓度均较高;冬季室内CO2浓度较高,夏季室内PM2.5浓度较高。
With the urgency of improving the work and living environment, the indoor environment has been a considerable problem for the people. Displacement ventilation has received wide attention from overseas and domestic scholars because of its high comfort, good air quality, energy saving and other advantages. However, the different ventilation patterns have great influence on the effect of active displacement ventilation. This paper established three ventilation models of residence and used computational fluid dynamics（CFD） method to study indoor wind speed, concentration of CO2 and PM2.5. The results indicates that the ventilation method of an inlet with an outlet is less ventilation effect than the ventilation methods of multiple inlets with an outlet and multiple inlets with multiple outlets. Furthermore, the concentration of CO2 in winter is highest and the concentration of PM2.5 in summer is highest under the ventilation method of an inlet with an outlet.
作者
田柳
卢军
吕怿非
王文卓
Tian Liu1, Lu Jun1, lv Yifei1, Wang Wenzhuo2(1.Chongqing University, Chongqing, 400044; 2.Xi’an University of Architecture and Technology, Xi’an, 710055)
出处
《制冷与空调（四川）》
2018年第3期256-265,共10页
Refrigeration and Air Conditioning
基金
中国中冶重大科技专项项目(项目编号:0012012006)
关键词
主动式置换通风
CFD模拟
室内空气品质
Active displacement ventilation
CFD simulation
Indoor air quality
