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首页> 外文会议>2010 4th International Conference on Bioinformatics and Biomedical Engineering >Evaluation of Exhaled Infectious Agents Transmission between Occupants under Different Ventilation Systems Indoors
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Evaluation of Exhaled Infectious Agents Transmission between Occupants under Different Ventilation Systems Indoors

机译：室内不同通风系统下乘员之间呼出传染物传播的评估

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摘要

The transmission of exhaled aerosols between two occupants under three total volume ventilation systems called mixing ventilation (MV), displacement ventilation (DV), and under-floor air distribution (UFAD) combined with two types of personalized ventilation (PV) systems was investigated numerically using computational fluid dynamics (CFD) method in a full-scale test room. Two particle sizes 0.8µm and 16µm as well as tracer gas were studied. Two indexes i.e. normalized concentration and ventilation effectiveness were used to evaluate the performance of the ventilation systems. It was found that PV enhanced the concentration level of tracer gas and fine particles in the breathing zone under DV and UFAD based ventilation systems. Using PV couldn't help improve the quality of inhaled air for DV based systems but could get the inhaled air quality of MV and UFAD based systems better.
机译：在数值上研究了在三个称为混合通风（MV），位移通风（DV），底层空气分布（UFAD）的三个总容量通风系统下的呼出气溶胶在两个占用者之间的传播与两种类型的个性化通风（PV）系统进行了分析在满量程测试室中使用计算流体动力学（CFD）方法。研究了0.8μm和16μm以及示踪气体的两个粒度。两种指标I.E.E.使用归一化浓度和通风效果来评估通风系统的性能。发现PV在DV和基于UFAD的通风系统下增强了呼吸区中示踪区和细颗粒的浓度水平。使用PV无法帮助提高基于DV的系统吸入空气的质量，但可以更好地获得MV和基于UFAD的系统的吸入空气质量。

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