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Numerical simulation of the flow and the collection mechanisms inside a laboratory scale electrostatic precipitator

机译：实验室规模的静电除尘器内部流动和收集机理的数值模拟

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Various methods and techniques are being used currently in order to improve the cleaning efficiency of electrostatic precipitators (EP). These techniques have been developed on the basis of past experience, measurements and performance data of industrial and laboratory scale units. The aim of this paper is to present a simulation method that can be used to give insight to the collection mechanisms and phenomena that take place inside electrostatic precipitators. The effects of the electrostatic forces on the particle and gas phases are taken into account. Emphasis is given to the impact of the ionic wind on the gas flow and its influence on the particle transverse transport velocities. The numerical results show the development of cross stream vortices due to ionic wind, with their magnitude depending on the applied wire-to-plate voltage. The vortices affect the collection efficiency of the EP, particularly, in the case of small size particles. Flow uniformity from plate to plate leads to increased collection efficiency of the EP. (c) 2005 Elsevier B.V. All rights reserved.
机译：当前正在使用各种方法和技术，以提高静电除尘器（EP）的清洁效率。这些技术是根据过去工业，实验室规模单位的经验，测量和性能数据开发的。本文的目的是提供一种模拟方法，可用于深入了解静电除尘器内部发生的收集机制和现象。考虑了静电力对颗粒和气相的影响。重点介绍了离子风对气流的影响及其对颗粒横向传输速度的影响。数值结果表明，由于离子风而产生的横流涡流，其幅度取决于所施加的线对板电压。涡流影响EP的收集效率，特别是在小尺寸颗粒的情况下。板与板之间的流动均匀性导致EP的收集效率提高。 （c）2005 Elsevier B.V.保留所有权利。

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