Presenter: Trevor Talbot
Authors: Trevor Talbot
Faculty Advisor: Brad Adams
Institution: Brigham Young University
As ultra-violet (UV) LEDs become more effective and economical, they see increased use for microbial inactivation. Design of air treatment systems which use UV LEDs is benefitted by use of analysis tools. However, existing tools are inadequate to model the effectiveness of UV LEDs for microbial inactivation, so an improved software tool was developed. The tool combines fluid flow and radiation sub-models to determine radiation dosage across the air duct. With that dosage data, the tool can calculate total inactivation of microbes using inactivation kinetics. To enhance user interaction, a Graphical User Interface (GUI) was developed for the analysis software. The GUI uses open-source Qt and Visualization Toolkit software libraries to help the user visualize the simulated air duct and its parameters. The GUI allows the user to specify and visualize duct properties and operating conditions such as air flow rate, wall reflectivity, LED arrangement, and duct size. The user can interact with dialog boxes to edit parameters and see the model visualization update to reflect changes. The simulation results are also graphically represented to show the user how microbial inactivation varies throughout the duct.