基于独立新风系统的新风量保障方法及经济性研究*
Economy and guarantee method for outdoor air rate based on dedicated outdoor air system
摘要：
介绍了不同传统变风量空调系统新风量控制方法的控制及节能效果，详细分析了变风量空调系统各个区域新风供给量及其需求量之间不匹配的问题。提出了基于独立新风系统的新风量保障方法。通过对比试验研究，分析了该新风量保障方法的经济性。结果表明：基于独立新风系统的新风量保障方法可以很好地实现新风量的按需分配；在大连地区，空调系统使用年限在12 a以上时，采用独立新风系统可以达到很好的节能效果。
Abstract：
Presents the control performance and energy saving effect of the different outdoor air rate control methods in traditional VAV systems, and analyses the problem of the mismatch between supply and requirement of terminal outdoor air rates in detail. Proposes the guarantee method for outdoor air rate based on the dedicated outdoor air system (DOAS). Analyses the economy of the guarantee method for outdoor air rate by a comparative experiment study. The results indicate that the guarantee method for outdoor air rate based on DOAS can realize the demand-based distribution of outdoor air rate, and adopting DOAS can achieve good energy-saving effect when the operation of air conditioning system is more than 12 years in Dalian area.
Keywords:variableairvolumeairconditioning,dedicatedoutdoorairsystem,demand-baseddistribution,outdooraircontrol,economicanalysis