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首页> 外文期刊>Separation and Purification Technology >Comparison of methods for evaluating particle charges in the electrostatic precipitation of fly-ash from small-scale solid fuel combustion
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Comparison of methods for evaluating particle charges in the electrostatic precipitation of fly-ash from small-scale solid fuel combustion

机译：小规模固体燃料燃烧粉煤灰静电沉淀评价粒子电荷的比较

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摘要

Small-scale heating units with solid fuels combustion cause a global atmospheric pollution by fine particles. Electrostatic precipitation is suggested as a method of controlling fine particle emissions. The correctness of modelling for precipitation efficiency is defined by the accuracy of the evaluation of particle charges. This work focuses on reviewing the existing particle charging theories in terms of their suitability for practical engineering for the electrostatic precipitation of fly ash particles from the flue gases of small-scale boilers. Charging calculation methods were rated as a function of the particle sizes, external discharge electric field strength, and ion density-time product and compared to published experimental data. Two particle charge rating methods were identified to be suitable for the electrostatic precipitation of such particles.
机译：具有固体燃料燃烧的小型加热装置导致细颗粒的全球大气污染。 建议静电沉淀作为控制细颗粒排放的方法。 沉淀效率建模的正确性由粒子电荷评估的准确性定义。 这项工作侧重于审查现有的粒子充电理论，以便他们对实际工程的适用性，从小型锅炉烟气捕获粉煤灰颗粒的静电沉淀。 充电计算方法被评定为粒度，外部放电电场强度和离子密度 - 时间产品的函数，并与已发表的实验数据相比。 鉴定了两种粒子电荷额定值方法适用于这种颗粒的静电沉淀。

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