摘要
高大空间空气处理单元是一种新型的分散式高大空间空调末端,可有效改善冬季室内温度分层现象。以武汉市某火车站候车厅为例,采用CFD模拟方法对高大空间空气处理单元的不同送风角度和送风口尺寸下的冬季候车厅温度分布进行模拟,并与采用分层空调系统时的温度分布进行对比分析,该末端系统可减小33.3%的垂直温度差,进而减小21.3%的热负荷。本研究结果将为高大空间空气处理单元的实际应用提供一定的指导与参考。
The air handling unit for large space is a new type of decentralized large space airconditioning terminal,which can effectively reduce the indoor vertical temperature stratification in winter.Taking a waiting hall of a railway station in Wuhan as an example,the CFD numerical simulation method is used to simulate the waiting room temperature distribution under different air supply angles and the opening sizes of air handling unit for large space.Compared with the temperature distribution under the stratified air-conditioning system,the air handling unit for large space system can reduce the vertical temperature difference by 33.3%,and then reduce the heat load by 21.3%.The study results can provide some guidances and references for the practical application of air handling unit for large space.
作者
彭珊
于靖华
杨清晨
赵金罡
Peng Shan;Yu Jinghua;Yang Qingchen;Zhao Jin’gang(Huazhong University of Science and Technology)
出处
《制冷与空调》
2020年第3期40-44,共5页
Refrigeration and Air-Conditioning
关键词
空气处理单元
温度分层
气流组织
高大空间
air handling unit
temperature stratification
air distribution
large space
