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A method to reduce the particle pollution in the air of Parisian subway stations

机译:一种减少巴黎地铁站空气中颗粒物污染的方法

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摘要

The particles present in the underground atmosphere are mainly produced by the system of braking and guiding of the trains. They are put in suspension each time that a train is coming and they stay permanently in suspension during peak hours. The present study includes several steps : 1. The characterisation of subway particulate pollution (chemical composition, size and evolution in time) 2. The study of an innovating electrostatic precipitator (Recycl'Air*) with respect to ambient particles. The results show that the filter performance is good and is not altered with time. To treat a station, it will be necessary to settle around thirty separtors. 3. The use of computational fluid mechanics to optimise the position of these electrostatic filters in the station.
机译:存在于地下大气中的颗粒主要是由火车的制动和引导系统产生的。每次火车驶入时,它们都会被暂停,并且在高峰时段将它们永久保持暂停状态。本研究包括以下几个步骤:1.表征地铁颗粒物的污染(化学成分,大小和时间演变)2.研究关于环境颗粒的创新型静电除尘器(Recycl'Air *)。结果表明,滤波器性能良好,不会随时间变化。要处理一个站,将有必要解决大约30个分隔线。 3.使用计算流体力学优化这些静电过滤器在工位中的位置。

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