某办公楼高大门厅空调系统设计改进  

Improvement of air-conditioning system design for high entrance hall in an office building

作　　者：刘初名 Liu Chuming(Tongji Architectural Design(Group)Co.,Ltd.)

机构地区：[1]同济大学建筑设计研究院(集团)有限公司

出　　处：《制冷与空调》2022年第7期59-63,共5页Refrigeration and Air-Conditioning

摘　　要：针对办公楼高大门厅的空间特点等可能导致的室内空调效果不佳,提出可以采用CFD技术模拟预测其室内空调效果并用于指导改进设计。通过模拟分析发现:采用喷口送风的分层空调方案,门厅室内垂直方向的温度梯度、人员活动区的平均风速基本满足要求,但是冬、夏季2种工况下都出现了室内局部区域温度(夏季23.7~28.8℃,冬季18.6~22.8℃)达不到设计要求的情况;针对这个问题,提出的改进方案能够改善室内空调效果(夏季22.4~26.9℃,冬季20.6~23.6℃)。In view of the poor indoor air-conditioning effect that may be caused by the spatial characteristics of the high entrance hall in the office buildings,it is proposed that CFD technology can be used to simulate and predict the indoor air-conditioning effect and guide the design.Through simulation analysis,it is found that with the stratified air-con-ditioning scheme with nozzles,the vertical temperature gradient in the hall and the average wind speed in the personnel activity area basically meet the requirements,but the indoor temperature in some area does not meet the design requirements in both winter and summer conditions(23.7-28.8℃in summer,18.6-22.8℃in winter).To solve this problem,the improved scheme can significantly improve the indoor air-conditioning effect(22.4-26.9℃in summer and 20.6-23.6℃in winter).

关 键 词：空调系统 高大门厅 喷口送风 温度 风速 

分 类 号：TB6[一般工业技术—制冷工程]