不同类型建筑新风免费冷却时间的研究
Free cooling hours for different kinds of buildings
摘要：
根据ASHRAE 90.1标准中新风冷却器的使用条件和计算方法，结合美国西北太平洋国家实验室提出的分析理论和相关气候变量，分别采用温度和比焓作为分类准则，对不同建筑类型进行分类统计，最后得出我国268个主要城市的新风冷却可用时间，用于指导设计。
关键词：免费冷却,空气侧经济器,水侧经济器,固定温度法,固定焓值法
Abstract：
Based on the application conditions and calculation methods of economizers in ASHRAE Standard 90.1, and according to the analysis theory and relevant climatic variables put forward by Pacific Northwest National Laboratory, adopts the temperature and enthalpy value as the classifying criteria, classifies the free cooling hours for different kinds of buildings, and obtains the free cooling hours of 268 cities in China, the results can be used as references for designing.
Keywords:freecooling,airsideeconomizer,watersideeconomizer,fixedtemperaturemethod,fixedenthalpymethod