摘要
首先介绍了空调系统中新风的作用、新风量的一般确定方法以及新风不足带来的问题,接着介绍室内空气品质(IAQ)新标准和室内主要污染物。结合工程实例,在不同新风量条件下,对青岛市某海边高档写字楼办公室的二氧化碳、甲醛、苯系物(苯、甲苯、乙基苯及二甲苯,简称B.T.E.X)以及总挥发性有机物TVOC进行了现场测试,并以二氧化碳和甲醛作为分析研究对象,分析了新风量对室内空气品质的影响,指出了该办公室内的主要污染物不是二氧化碳,而是室内精装修带来的以甲醛为首的污染物,从而新风量的确定不能仅以稀释二氧化碳为依据,而要以消除室内主要污染物为目的。最后提出了改善室内空气品质的主要方法是改善室内的通风条件,不断补充房间内的新鲜空气,同时要有效置换出室内被污染的空气。
This paper firstly presents the effect of fresh air. the calculational methods of fresh air volume and the problem for shortage of fresh air in air condition system, then presents new standard of indoor air quality and main indoor pollutants. With a project in Qingdao China, Some tests related carbon dioxide, formaldehyde, aromatic hydrocarbons（benzene, toluene, ethylie benzene and xylene, shortened form B.T.E.X ） and total volatile organic compounds in an office building on the spot under different fresh air volume. Analyses and studies the impact of fresh air volume on indoor air quality mostly by carbon dioxide and formaldehyde, point out carbon dioxide is not the main indoor pollutant in the office, but formaldehyde is the main pollutant as a result of indoor slap-up fitment, So the fresh air quantity should not only take for diluting carbon dioxide, but also cleaning up main indoor pollutant. At last, put forward the main ways to increase indoor air quality is： improving indoor ventilation condition, supplying indoor fresh air and replacing indoor air polluted.
出处
《制冷与空调（四川）》
2008年第6期24-28,共5页
Refrigeration and Air Conditioning
关键词
新风量
室内空气品质
CO2浓度
甲醛浓度
fresh air volume
indoor air quality
CO2 concentration
formaldehyde concentration
