Effect of ventilation duct as a particle filter

By modeling the particles deposition in ventilation ducts, the authors discuss the effect of ventilation duct as a particle filter. An Eulerian model is used to predict the particle deposition velocity from fully developed turbulent flow in ventilation duct. Two empirical equations are proposed to predict the particle deposition velocity, and to predict the particle penetration through the bends. Losses through ventilation duct are evaluated. Straight duct and duct bend cases are analyzed. The results of an application case are presented