Abstract The range of particle sizes typically present in combustion flue gas complicates predictions of gas-particle mass transfer processes. This complexity is amplified within electrostatic precipitators where particle motion, abundance, and mass transfer characteristics are size dependent. The present study illustrates the utility of replacing explicit representations of particle size distributions in simulations of electrostatic precipitators with an equivalent loading of monodisperse aerosols of diameter chosen to reproduce the same gas-particle mass transfer characteristics. Computational times are reduced by an order of magnitude using this approach, facilitating future incorporation of multiple particle types or heterogeneous chemical kinetics.

中文翻译：

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静电沉淀过程中快速气体-颗粒传质模拟的演化粒度分布的低阶表示

摘要 燃烧烟道气中通常存在的颗粒尺寸范围使气体-颗粒传质过程的预测复杂化。这种复杂性在静电除尘器中被放大，其中粒子运动、丰度和传质特性取决于尺寸。本研究说明了在静电除尘器的模拟中用等效负载的单分散气溶胶替换颗粒尺寸分布的显式表示的效用，该气溶胶的直径选择为再现相同的气体-颗粒传质特性。使用这种方法，计算时间减少了一个数量级，促进了未来多种粒子类型或异质化学动力学的结合。