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首页> 外文期刊>International journal of air-conditioning and refrigeration >Tracking the Flu Virus in a Room Mechanical Ventilation Using CFD Tools and Effective Disinfection of an HVAC System
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Tracking the Flu Virus in a Room Mechanical Ventilation Using CFD Tools and Effective Disinfection of an HVAC System

机译：在房间机械通风中跟踪流感病毒，使用CFD工具和HVAC系统的有效消毒

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Recent concerns raised by the World Health Organization over the Coronavirus raised a worldwide reaction. Governments are racing to contain and stop the Coronavirus from reaching an epidemic/pandemic status. This research presents a way in tracking such a virus or any contagious germ capable of transferring through air specifically where such a transfer can be assisted by a mechanical room ventilation system. Tracking the spread of such a virus is a complicated process, as they can exist in a variety of forms, shapes, sizes, and can change with time. However, a beginning has to be made at some point. Assumptions had to be made based on published scientific data, and standards. The tracking of airborne viruses was carried out on the following assumption (for illustrative purposes); one person with one sneeze in a period of 600 s. The presence of viruses was tracked with curves plotted indicating how long it could take to remove the sneezed viruses from the mechanically ventilated room space. Results gave an indication of what time span is required to remove airborne viruses. Thus, we propose the following: (a) utilizing CFD software as a possible tool in optimizing a mechanical ventilation system in removing contagious viruses. This will track the dispersion of viruses and their removal. The numerical solution revealed that with one typical adult human sneeze, it can take approximately 640 s to reduce an average sneeze of 20,000 droplets to a fifth; (b) upscaling the status of human comfort to a "must have" with regards to the 50% relative humidity, and the use of Ultraviolet germicidal irradiation (UVGI) air disinfection in an epidemic/pandemic condition. A recommendation can be presented to the local authorities of jurisdiction in enforcing the above proposals partially/fully as seen fit as "prevention is better than cure". This will preclude the spread of highly infectious viruses in mechanically ventilated buildings.
机译：世界卫生组织对冠状病毒的最近令人担忧提出了全球反应。政府正在遏制并阻止冠状病毒达到流行病/大流行地位。该研究呈现了跟踪这种病毒或任何传染胚的方法，具体地通过机械室通风系统辅助这种转移来转移空气。跟踪这种病毒的传播是一种复杂的过程，因为它们可以以各种形式，形状，尺寸存在，并且可以随时间变化。但是，必须在某些时候开始。假设必须根据已发表的科学数据和标准进行。在以下假设上进行空中病毒的跟踪（用于说明性目的）;一个人在600秒的时间内打喷嚏。绘制病毒的存在，曲线绘制，表明从机械通风的室间空间中除去的打喷嚏病毒可能需要多长时间。结果显示了去除空气传播病毒所需的时间跨度的指示。因此，我们提出了以下内容：（a）利用CFD软件作为优化拆除传染病病毒的机械通气系统的可能工具。这将跟踪病毒的分散及其去除。数值解决方案显示，通过一个典型的成年人侦探，可以花费大约640秒，以减少20,000滴的平均喷嚏到第五个; （b）在50％相对湿度方面提高人类舒适性的状态，以及在流行病/大流行病中使用紫外杀菌辐照（UVGI）空气消毒。建议可以向地方当局提交给司法管辖区，在实施上述建议部分/完全按照所谓的拟议，因为“预防比治愈更好”。这将妨碍在机械通风建筑物中的高传染性病毒的蔓延。

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