Effect of air exchange rate on particle decay in a cleanroom: A numerical study

Abstract

In this study, particle decay in a cleanroom is investigated numerically. A commercial CFD package, FLUENT, is used in the analysis. The governing equations are solved by using the k-e turbulence model. For particle dispersion, the discrete phase model (DPM) is applied. Four different air change rates (3-10-25-43 ACH) with three particle diameters (0,5-5-10 µm) are considered. It is shown that 10 ACH satisfies the needs in terms of recovery time.