Proface

Proprietary CFD software simulates both the flow and radiation profiles at UV water sterilizers. Once a 3D model of the chamber is built, it is populated with a grid or mesh that comprises of thousands of small cubes. Points of interest, such as at a bend, near a sleeve surface, or areas near the wiper mechanism, get a higher resolution mesh. Other areas in the reactor use a coarse mesh. Once the mesh is produced, hundreds of thousands of virtual particles are fired though the chamber. Each particle has variables of interest associated with it, and the particles are collected after they exit the reactor. Discrete phase modeling produces delivered dose, headloss, and other chamber specific parameters. When modeling is complete, the resulting system is validated using a third party to provide oversight that determines how close the model is able to predict system performance. Validation uses non-pathogenic surrogates such as T1 phase or MS-2 to determine the reduction equivalent dose (RED) ability of the reactors. Most reactors are validated to deliver 0.5 log to 6 log reductions of SRB species within an envelope of flow and transmittance. Cost of ownership is further reduced through a range of design features, including easy access for maintenance and an internal pressure transducer for maintenance engineers to quickly prove air flow. Reactocell works in conjunction with Halton’s KSA multi-cyclone filters to provide comprehensive treatment of exhaust air. The KSA filters are highly effective at dealing with medium to large grease particles, while the Reactocell oxidises small grease particles and grease vapours.