打喷滴在肉类设施的室内环境中分散 - 没有隔壁
Sunil Kumar1, Mark Klassen2, David Klassen3
1Department of Biological and Agricultural Engineering, Texas A&M University, College Station, TX 77843, USA.
Environmental research
|July 16, 2023
概括
这项研究模拟了COVID-19在工业制造室的传播,确定了液滴传播的高风险区域. 现在可以开发工程解决方案,以最大限度地减少这种环境中的病原体暴露.
科学领域:
- 环境工程 环境工程
- 公共卫生 公共卫生
- 计算流体动力学的流体动力学.
背景情况:
- COVID-19大流行突出了室内环境在病毒传播中的关键作用.
- 工业设施,特别是有湿气的肉类加工厂,在控制空气传播的病原体方面存在独特的挑战.
- 工人在制造室的密切接近增加了从无症状载体传染的远程滴滴传播的风险.
研究的目的:
- 在模型制造室中调查室内空气流和滴滴传播模式.
- 在工业环境中确定COVID-19传播的高风险地点.
- 评估通风系统的有效性和病原体分散中的空气泄漏.
主要方法:
- 开发和应用一种新的计算流体动力学 (CFD) 模型.
- 模拟病毒滴从虚拟房间环境中的多个打喷位置传播.
- 分析空气流动模式,滴水去除机制和感染指数.
主要成果:
- 识别制造室内的特定位置,具有较高或较低的暴露风险.
- 了解冷凝器,排气风扇和空气泄漏对病原体分布的影响.
- 对工人和固定物体的感染风险的量化.
结论:
- 该CFD模型为工业环境中的COVID-19传播动态提供了有价值的见解.
- 结果可以为重新设计工作空间的工程策略提供信息,以减轻空气传播疾病的传播.
- 这项研究为加强敏感室内环境中的安全协议提供了基础.
相关概念视频
01:25Transmission-based Precautions II: Airborne and Protective Environment
1.3K
Transmission-based precautions are for patients infected or suspected to be infected (or colonized) with organisms posing a significant risk to others. The transmission precautions include airborne and protective environment precautions.
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
1.3K
01:17Transmission-based Precautions I: Contact, Enteric, and Droplets
3.7K
Transmission-based precautions are for patients known to be infected or suspected to be infected or colonized with organisms that pose a significant risk to others. Some transmission-based precautions include contact, enteric, and droplet.
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...
3.7K