A mesoscale model for the relationship between efficiency and internal liquid distribution of droplet mist filters

摘要

Building on work by Kampa et al. (2014) about the liquid distribution in multi-layer oil mist filters, a mesoscale empirical model is proposed for their efficiency. It decomposes the total penetration into a product of independent 'building blocks' that are aligned with the mesoscale liquid distribution in steady state, essentially in the form of an oil film and a channel region. The film (typically one very thin region per sandwich) is associated with a film penetration P-film and the channel region (consisting typically of multiple layers) with a channel penetration P-channel. The first layer of wettable media also represents a separate contribution P-1st layer.