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首页> 外文期刊>Building and Environment >Numerical analysis of PM_(2.5) particle collection efficiency of an electrostatic precipitator integrated with double skin facade in a residential home
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Numerical analysis of PM_(2.5) particle collection efficiency of an electrostatic precipitator integrated with double skin facade in a residential home

机译：某住宅双层皮肤立面静电除尘器PM_（2.5）颗粒捕集效率的数值分析

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In this study, the electrostatic precipitator (ESP) integrated with a double skin facade (DSF) was proposed as a new method to overcome natural ventilation constraints due to outdoor particles and the particle collection efficiency of an ESP integrated with a DSF (EPID) was evaluated using numerical analysis. The particle collection efficiencies of two models of ESP integrated with DSF (EPID) with air cavity depths of 0.2 m and 0.5 m were evaluated according to the horizontal and vertical installation positions of the ESP in the air cavity and the voltage intensity during operation. Changes in the particle collection efficiency depending on the inlet air velocity at the EPID inlet were also analyzed. A computational fluid dynamics model was suggested for analyzing the airflow in the EPID, particle behavior, and electrostatic precipitation and validated by comparison with existing experimental data. The particle collection efficiency of the EPID was high when it was adjacent to the inner skin of the EPID and located in the upper section of the air cavity, and positions inside the air cavity with a reduced velocity for the main airflow helped increase the particle collection efficiency. When the air velocity at the EPID inlet was controlled at 0.5 m/s, a particle collection efficiency of 92.8% could be expected at 12 kV. These results indicate that integrating the ESP with the DSF can effectively reduce the inflow of external particles.
机译：在这项研究中，提出了一种将静电除尘器（ESP）与双层皮肤外墙（DSF）集成在一起的新方法，以克服室外颗粒引起的自然通风限制，并且将与DSF（EPID）集成的ESP的颗粒收集效率提高了。使用数值分析进行评估。根据ESP在空气腔中的水平和垂直安装位置以及运行过程中的电压强度，评估了两种集成有DSF（ESID）的ESP空气腔深度为0.2 m和0.5 m的模型的颗粒收集效率。还分析了取决于EPID入口处的入口空气速度的颗粒收集效率的变化。建议使用计算流体动力学模型来分析EPID中的气流，颗粒行为和静电沉淀，并通过与现有实验数据进行比较进行验证。当EPID靠近EPID的内蒙皮并位于气腔的上部时，其EPID的颗粒收集效率很高，并且在气腔内部以较低的主要气流速度定位有助于增加颗粒的收集效率。当将EPID入口处的空气速度控制在0.5 m / s时，在12 kV时可以预期达到92.8％的颗粒收集效率。这些结果表明，将ESP与DSF集成可以有效减少外部颗粒的流入。

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