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美国《ASHRAE标准 62 - 1 999》要求增大空调系统的设计新风量 ,降低室内相对湿度以提高室内空气品质。这样 ,空调系统的冷、湿负荷将增大。据此 ,提出了新风预处理概念 ,它是在基本保持原有的传统空气处理系统不变的前提下 ,对新风进行合适的预处理 ,以消除增加的新风对空调对象的干扰 ,从而经济有效地改善室内空气品质。最后 ,给出了几种新风预处理系统及应用。
The United States “ASHRAE Standard 62-1999” requires the design of air conditioning systems to increase the amount of fresh air, reducing indoor relative humidity to improve indoor air quality. In this way, the air conditioning system of cold and wet load will increase. Therefore, the concept of fresh air pretreatment is put forward, which is to pretreat the fresh air basically while keeping the original traditional air handling system unchanged, so as to eliminate the additional fresh air disturbance to the air-conditioner and thus to be cost-effective Improve indoor air quality. Finally, several fresh air pretreatment systems and their applications are given.