空调系统对室内空气品质的影响

目的分析空调系统对室内空气品质的影响。方法通过对某建筑物空调系统的测试,对空调机组新风量、空气调节区域的送风量、回风量、气流组织、送回风口设置情况进行分析,评价空调系统对室内空气品质的作用。结果室内温度为22.0～26.2℃、相对湿度45.5～59.2%、风速0.01～0.56 m/s、二氧化碳浓度604～878ppm,满足相关标准要求。一层指挥中心、二层会商中心换气次数为0.74、0.6次/h,低于相关标准要求。五层弧形办公室送风口风速低、回风口风量不满足要求。结论合理的气流组织及空调系统的维护管理对室内空气品质起着至关重要的作用。

Effect of air conditioning system on indoor air quality

Objective To analyze the effect of air conditioning system on indoor air quality. Methods The air condition- ing system in the building was detected and indexes of indoor air quality were analyzed including the fresh air , air intake quantity , air exhaust quantity and airflow organization effect. Results The indoor temperature was 22.0 -26. 2℃, humidity was 45.5% -59. 2%, air speed was 0. 01 -0. 56 m/s ,carbon dioxide concentration was 604 - 878 ppm, and there were satisfied with the criterion. The exchange airflow quantity per hour in the first command center was 0. 74 and the second command center was 0. 6,lower than that of relative national standards. Conclusion The reasonable airflow organi- zation and air conditioning maintenance management are the key factors in the indoor air quality.