Study the Impact of Engineering Ventilation on Indoor Air Quality in Hospitals during COVID-19

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-06-01 DOI:10.5572/ajae.2021.043

Abderrahim Lakhouit, Hanaa Hachimi, Chakib El Mokhi, Adnane Addaim, Mohamed Kaicer

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Abstract

This study investigates the importance of using engineering ventilation in healthcare settings, especially during widespread disease outbreaks such as COVID-19. Ventilation can be used to improve indoor air quality in care homes, hospitals, and quarantine locations. In the research, two scenarios of engineering ventilation are simulated using a Fire Dynamic Simulator (FDS), with sulfur hexafluoride employed as the contaminant emitted by the patient in the hospital room. The volume of the room selected for the present study is 60 m³, and the ventilation mode is designed according to the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), with 12 air changes per hour and negative pressure. The mean concentration of the pollutants is estimated for both scenarios, giving concentrations in the range of 920±397 to 1260±580 ppm. The estimated indoor air quality (IAQ) values varied from 2.06 to 2.90. According to the obtained results, ventilation plays a critical role in eliminating pollutants, indicating that suitably engineered ventilation strategies can reduce the impact of COVID-19 spread in closed buildings.

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研究 COVID-19 期间工程通风对医院室内空气质量的影响

本研究探讨了在医疗机构中使用工程通风的重要性，尤其是在 COVID-19 等疾病大面积爆发期间。通风可用于改善护理院、医院和隔离区的室内空气质量。在这项研究中，使用火灾动态模拟器（FDS）模拟了两种工程通风方案，其中六氟化硫被用作病房内病人排放的污染物。本研究选择的房间容积为 60 立方米，通风模式根据美国采暖、制冷和空调工程师学会（ASHRAE）设计，每小时换气 12 次，负压。对两种方案的污染物平均浓度进行了估算，得出的浓度范围为 920±397 至 1260±580 ppm。估计的室内空气质量（IAQ）值从 2.06 到 2.90 不等。根据所获得的结果，通风在消除污染物方面起着关键作用，这表明适当设计的通风策略可以减少 COVID-19 在封闭建筑中扩散的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.