基于辐射空调系统的不同新鲜空气流动模式下的负压病房感染风险研究
Chonggang Zhou1, Yunfei Ding2, Lifei Ye1
1School of Civil Engineering, Guangzhou University, No. 230, West Waihuan Road, Higher Education Mega Center, Panyu District, Guangzhou City, 510006, Guangdong Province, China.
辐射空调系统提高了负压病房的安全性. 与向下通风不同,安装在天花板上的喷气和层层通风可以降低污染物水平和医护人员的感染风险.
科学领域:
- 建筑服务工程 工程
- 传染病控制和控制传染病
- 环境健康 环境健康
背景情况:
- 负压病房对于制COVID-19等高度传染性呼吸道病毒至关重要.
- 这些病房的独立空调系统由于空气循环,凝结物和过器问题而存在感染风险.
- 辐射空调系统提供了一个替代方案,通过辐射天花板来控制温度,通过新鲜空气吸入来控制空气质量.
研究的目的:
- 用辐射空调评估负压病房的热舒适度,污染物分布,清除效率和空气供应可达性.
- 为了比较三种空气流模式的性能:向下通风,层通风和附在天花板上的喷气.
- 分析不同病房区域的医疗保健工作者感染概率.
主要方法:
- 计算流体动力学 (CFD) 模拟用于模拟空气流和污染物运输.
- 评估了热舒适度,污染物度和去除效率.
- 在12个定义的病房区域计算了医疗保健工作者的感染概率.
主要成果:
- 辐射空调系统有效地确保负压病房的患者的热舒适.
- 与向下通风相比,层层通风和悬挂在天花板上的喷气器在降低污染物度和降低医护人员感染风险方面表现优异.
- 在10分钟内,天花板上的喷气机显示污染物度下降10.73%,清除效率提高12.50%,感染概率降低23.18%.
结论:
- 辐射空调系统是负压病房的可行和更安全的替代方案.
- 层层通风和天花板上的喷气器为医疗保健工作者在感染控制方面提供了显著的优势.
- 优化空气流模式对于提高医疗环境的安全性和效率至关重要.
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