摘要
鉴于变风量系统送风区域温度可控、可变新风比运行以在过渡季节充分利用室外新风等诸多优点,变风量系统越来越多地应用到国内实际工程中。变风量系统的系统新风不平衡性是影响系统运行能耗的重要影响因素之一。以苏州中心6#塔楼变风量系统的设计为例,分别对空调内外区合用AHU系统和空调内外区独立设置AHU系统两种方案进行夏冬设计工况的设计计算。结果表明,较之合用AHU系统,空调内外区独立设置AHU系统的新风不平衡性更好,空调系统制冷量和再热量均有所降低,系统运行能耗更低。
The VAV system has been widely used in China because of its advantages such as fine indoor air quality and thermal comfort. The imbalance of fresh air in VAV system affects system energy consumption heavily. This paper takes the case of Suzhou center 6 # tower as an example,to compare system energy consumption of different schemes of VAV system. The two schemes of VAV system,one is that the inner air conditioning area and the outer air conditioning area using common AHU ( air handing unit( s)),and the other one is that the inner air conditioning area and the outer air conditioning area use separate AHU. The energy consumption of two schemes are calculated under summer and winter design conditions. Results show that compared with using common AHU,the VAV system using separate AHU is better in system energy consumption due to its advantage in balance of fresh air.
作者
廖健敏
刘成兴
LIAO Jian-min;LIU Cheng-xing(ARTS Group Co.,Ltd.,Suzhou 215021,Jiangsu,China)
出处
《建筑节能》
CAS
2019年第4期36-40,67,共6页
BUILDING ENERGY EFFICIENCY
