Desktop workstation exhaust and simulation of perforated ceiling air supply in tobacco evaluation rooms

Presents the principle of workstation exhaust, the determination of exhaust air velocity and the design and calculation of perforated ceiling air supply in a tobacco evaluation room. Compares the velocity and temperature fields between perforated ceiling air supply and traditional air supply by simulation and calculation. Provides the ideas of how to vent the low concentration pollutants and the method for perforated ceiling air supply design.