Computational Fluid Dynamics (CFD)-based validation of ultraviolet (UV) reactor performance has enormous potential as a cost effective and versatile tool for
facilitating the implementation of UV disinfection for drinking water treatment. Key to using CFD-based validation
is obtaining regulatory acceptance. This work provides an assessment of the impact five factors on CFD-based
predictions of dose delivery for one commercial UV reactor. Dose delivery by the reactor is influenced by the
number of microbes simulated in the model and by the number of simulations that pass fully through the UV reactor
and are not "trapped". The Reduction Equivalent Dose (RED) calculated using the CFD-model is dependent on the
UV sensitivity of the microbe used in the model. The dependence is greater at lower UV transmittance values.
Predictions of RED and velocity profiles with a ninety-degree bend upstream of the reactor did not differ from
predictions with a straight pipe inlet. Predictions of RED were also the same with the use of RNG and ke turbulence
models. Includes 5 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 3.9 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 12 |
| Published : | 06/15/2003 |
