Home | Highlights 2018

Immission Assessment Inside an Industrial Ventilated Room Using CFD.

V. Plesu, A. E. Bonet-Ruiz, J. Bonet, P. Iancu, J. Llorens, L. I. Becerra.
Chem. Eng. Trans., 70 (2018) 1825.

Dependence of the dead zones location on the number of renewals per hour.

Nowadays the ventilation design of enclosed spaces is based on the number of air renewals per hour. This coarse approach was developed in the past but nowadays is a fast and simple computational exercise to determine where and when the Threshold Limit Value (TLV) is surpassed. A rather superficial Computer Fluid Dynamics (CFD) analysis is able to provide
insights that are useful to propose measures to keep the pollutants concentrations at safe levels. The contaminants’ level inside a factory is simulated for risk and health assessment to determine the contaminant levels reached as consequence of the normal operation or in case of a sudden release. A good agreement is obtained between simulations and field measurements. A design fulfilling the legislation according to the air renewals tabulated can surpass the TLV in practice. The legislation should be based on CFD results instead of general tabulated values, as in some cases the ventilation could be too oversized or insufficient.