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C. Buchner, C. Reichl, N. Vana:
"Development of a Simulation Method to predict Ultraviolet Disinfection Reactor Performance and Comparison to Biodosimetric Measurements";
Poster: Junior Scientist Conference 2006, Wien; 2006-04-19 - 2006-04-21; in: "Proceedings of the Junior Scientist Conference 2006", (2006), ISBN: 3-902463-05-8; 221 - 222.

Nowadays, water disinfection with ultraviolet radiation becomes increasingly important. This work presents a simulation method to predict the disinfection efficacy of an UV disinfection reactor and compares the results to biodosimetric measurements to assess the achieved accuracy.
Multiple CFD simulations have been performed, particle tracks were generated and the radiation field inside the reactor has been modelled. The reduction equivalent fluence (REF), an important quantity in biodosimetry, has been calculated.
The simulated pressure loss of the reactor agreed very well with the experiments. Despite a lack of experimental data for certain parts of the disinfec-tion process, good predictions of the REF were obtained. Average error values varied between 7 and 25%, depending on the chosen radiation model.

biodosimetry, Computational Fluid Dynamics, particle tracking, radiation models, Reduction Equivalent Fluence, Ultraviolet disinfection

http://publik.tuwien.ac.at/files/pub-mb_5455.pdf