摘要
夏热冬冷地区潮湿寒冷的冬季,体育馆等高大空间公共建筑改建而成的开敞方舱医院,利用空调供暖时会造成明显的热分层现象。针对此问题,以武昌方舱医院为例,利用CFD数值模拟技术首先对患者集中收治区的温度场分布进行了具体分析,发现该区域的温度基本能满足人体需求;但为了有效提高患者自身免疫力,有必要进一步提升室内温度。因此提出了利用舱膜搭建单元化舱室的方案,并探讨了换气次数为0.5次/h、10次/h、40次/h时,舱室内的流场和温度场分布情况。根据数值模拟结果,推荐单元化舱室的换气次数为10次/h,最大的换气次数不宜超过40次/h。研究可为夏热冬冷地区的体育馆等高大空间公共建筑,应急改建为临时医疗中心提供参考方案,并为确定单元化舱室的通风量提供依据。
In wet and cold winter in hot summer and cold winter zone,the heating by air conditioning system will cause obvious thermal stratification in Fangcang shelter hospitals rebuilt from large-scale public buildings such as stadiums.Taking Wuchang Fangfang Hospital as an example,the CFD numerical simulation technology was used to analyze the temperature field distribution in the patients’ treatment area.It was found that the temperature in this area could basically meet the human needs.In order to effectively improve the patient’s immunity,it is necessary to further increase the indoor temperature.To solve this problem,a modular cabin was designed with greenhouse plastic film.The velocity and temperature distribution of the modular cabin were analyzed when the air changes per hour was set to be 0.5,10,and 40 respectively.According to the results of numerical simulation,the recommended air changes per hour of the modular cabin is 10,and the maximum air changes per hour should not exceed 40.The research can provide a design for emergency transformation of large-scale public buildings into temporary medical centers in hot summer and cold winter zone,and a basis for determining the ventilation rate of a modular cabin.
作者
郝梓仰
张晓静
谢静超
景鹏飞
尹凯丽
HAO Ziyang;ZHANG Xiaojing;XIE Jingchao;JING Pengfei;YIN Kaili(Key Laboratory of Green Built Environment and Energy Efficient Technology,Beijing University of Technology,Beijing 100124,China)
出处
《建筑科学》
CSCD
北大核心
2022年第6期223-232,共10页
Building Science
基金
国家自然科学基金重点项目(51838011)。
关键词
高大空间公共建筑
方舱医院
CFD模拟
温度场优化设计
换气次数
large-scale public buildings
FangCang Shelter Hospitals
CFD simulation
temperature field optimization
air change rate
