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《工程(英文)》 >> 2022年 第8卷 第1期 doi: 10.1016/j.eng.2020.10.020

适应性贴附通风——负压呼吸性传染病隔离病房有效性的比较研究

a School of Building Services Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
b Department of Applied Physics and Electronics, Umeå University, Umeå SE-90187, Sweden
c School of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, China

收稿日期: 2020-05-06 修回日期: 2020-08-24 录用日期: 2020-09-14 发布日期: 2021-01-23

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摘要

新型冠状病毒的传播给隔离病房的室内环境控制提出了挑战。科学的气流组织设计和运行管理是保证医护人员环境安全的关键。本文提出了适应性贴附通风在隔离病房的应用,并从污染物扩散、去除效率、热舒适性和运行费用等方面对这种送风方式进行了评估。适应性贴附通风将新鲜空气直接、较好地供应至医护人员工作区。与顶送风或侧壁上送风相比,在相同的污染物释放率和房间换气次数(ACH; 10 h-1)条件下,适应性贴附通风的污染物平均浓度降低了15% ~ 47%。理想的混合通风的污染物去除效率不能超过1.0。对于适应性贴附通风,污染物去除效率是换气次数的指数函数。与顶送风模式或侧壁上送风模式相比,适应性贴附通风可实现相似的热舒适水平[预测平均评价(PMV)为-0.1~0.4;吹风感为2.5%~6.7%],且以较低的换气次数和能耗获得相似去除污染物的性能。

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