Disinfection of water treatment using ultraviolet (UV) light has received wide recognition as an important contribution to the protection of public health. To ensure a UV disinfection system that can deliver the required UV dose, analytical and numerical methods have been used to evaluate the flow field of the UV reactor. A Multiple Point Source Summation (MPSS) method was used to estimate the radiation intensity field, with the utilization of Computational Fluid Dynamics (CFD) technique. To couple the analytical model with numerical simulations, a user friendly interface software was developed to calculate the UV dosage distribution. In addition a UV lamp aging evaluation calculator was also developed for predicting the effective service life of the system. A typical UV disinfection unit has been simulated and provided flow field data to demonstrate the accuracy of dosage distribution modeling. The predicted values provided a good comparison with experimental data at 85% UV Transmittance.
Library of Congress Subject Headings
Radiation dosimetry--Mathematical models; Ultraviolet radiation--Industrial applications; Water--Purification--Research
Department, Program, or Center
Mechanical Engineering (KGCOE)
Li, Xiang, "Computational analysis of ultraviolet reactors" (2009). Thesis. Rochester Institute of Technology. Accessed from
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