Sensors and exposition analyses for aerosol transport in dynamic situations

动态情况下气溶胶传输的传感器和暴露分析

• 批准号: 469048625
• 负责人: Professor Dr.-Ing. Christoph Egbers
• 金额: --
• 依托单位: Institut für Aeordynamik und Strömungstechnik (IAS)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2021
• 资助国家: 德国
• 起止时间: 2020-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/469048625?language=en
• 关键词: Sensors; exposition; analyses; aerosol; transport

Within the planned project a novel methodology to study aerosol transport in highly dynamic situations involving many people shall be developed and applied. WG Hampel develops and deploys a new mobile counting device for Helium soap bubbles which can be carried by test persons and which counts small Helium bubbles emitted by a mobile bubble generator simulating spreader. The sensor is inexpensive, robust and remotely operated. It bases on a light-optical camera technique. Different experimental studies investigating situations in classrooms, in narrow corridors, group dynamics indoors and outdoors, installation of air purifiers in a class or seminar room as well as window opening ventilation scenarios will be carried out. We study the effective particle inhalation using the mobile sensors together with the macroscopic 3D particle transport in the room using the experimental Shake-the-Box Lagrangian particle tracking concept of WG Schröder and WG Egbers. The new experimental concept allows to study the effectiveness of protective measures such as masks, distance and ventilation with regard to the risk of infection to be assessed in realistic settings and enables in particular the future investigation of scenarios in public spaces, such as schools, public transport, cultural events, restaurants or sports facilities.

在计划的项目中，应开发和应用一种新的方法来研究涉及许多人的高度动态情况的气溶胶运输。 WG Hampel开发并部署了一种用于氦肥皂气泡的新移动计数设备，该设备可以由测试人员携带，并计算由模拟撒布机的移动气泡发电机发出的小型氦气气泡。传感器廉价，健壮且远程操作。它基于光光相机技术。不同的实验研究将在课堂，狭窄的走廊，室内和室外的群体动态，在课堂或精液室内安装空气净化器以及打开通风场景的各种实验研究。我们使用移动传感器与宏观3D粒子在房间中使用的有效粒子吸入，并使用WGSchröder和WG Egbers的实验奶昔Lagrangian粒子跟踪概念。新的实验概念允许研究保护性措施（例如面具，距离和通风）的有效性，以在现实环境中评估感染的风险，并尤其可以使场景未来在公共场所，例如学校，公共交通，文化活动，餐馆，餐厅或体育设施中进行。