VC-21A-C017 - Effect of Exhaust Grille Position on Air Quality and Flow Patterns in Clean Rooms

This paper studies the effect of exhaust grilles location on air flow regimes. The three presented cases study the air
velocity profile in three different exhaust grille locations. The first design has two exhaust grilles along the same wall,
while the second design option has the exhaust grilles on the opposite walls. The third design option combines the
first two options, with four grilles in total, two on a common wall, and two others on the opposite wall. The study is
performed by means of Computational Fluid Dynamics (CFD) using ANSYS 17.2. The objectives of this research
were to determine the best exhaust grilles location which would create laminar flow and result in fewer vortices that
might prevent generated particulates to settle down or migrate around the laboratory.