EXPERIMENTAL AND CFD ANALYSES EXAMINING OZONE AND TERPENE DISTRIBUTIONS IN MODEL ROOMS WITH LAMINAR AND TURBULENT FLOW FIELDS

Indoor ozone has received attention because of its well-documented adverse effects on health. Inaddition to the inherently harmful effects of ozone, it can also initiate a series of reactions that generatepotentially irritating oxidation products, including free radicals, aldehydes, organic acids and secondaryorganic aerosols (SOA). The overarching goal of this work was to better understand ozone and terpenedistributions within rooms. Towards this end, the paper has two parts. The first describes thedevelopment of a cylindrical test chamber that can be used to obtain the second order rate constant (kb)for the bi-molecular chemical reaction of ozone and terpene in the air phase. The second consists ofmodel room experiments coupled with Computational Fluid Dynamics (CFD) analysis of theexperimental scenarios to obtain ozone and terpene distributions in turbulent flow fields. The results ofCFD predictions were in reasonable agreement with the experimental measurements.