Carl A Gilkeson and Catherine Noakes Application of CFD Simulation to Predicting Upper-Room UVGI Effectiveness Photochemistry and Photobiology 89
Our work explores the potential of computer airflow simulation in predicting the performance of upper-room ultraviolet germicidal irradiation (UVGI) effectiveness. Experimentally measured irradiance fields are combined with Computational Fluid Dynamics (CFD) methodology to predict the dose distribution (J m−2) within a small mechanically ventilated room for a range of test conditions. A series of detailed sensitivity studies illustrate the importance of the numerical grid size, the turbulence model employed and the fidelity of the irradiance field. We demonstrate that a two-dimensional UV field is sufficient for modeling purposes and the resulting dose distribution offers valuable insight into predicted disinfection performance.
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