In-line chemicals dosing

The customer

• Size: Medium-large enterprise
• Sector: Industrial water treatment
• Country: United Kingdom

The Project

• Size: 70-80 man-hours
• Duration: 2-3 weeks

The Problem

• Inefficient additives mixing in the water stream
• Competitive reactions on the pipeline between the chemicals
• Performance of different static mixers unknown (pressure drop and mixing efficiency)

Proposed solution

• Model fluid flow for different static mixers and injector configurations
• Measure the Coefficient of Variation (CoV) for different pipeline locations

The simulations

• Steady state CFD simulation with species tracking for the injection process (CFD analysis)
• Computation of the Coefficient of Variation (CoV) (CFD analysis)

Project overall results

• Definition of the best injector/static mixer configuration. Mixing and pressure drop optimised.
• Savings over £11,000 for the customer in prototyping and testing (estimate).
• Savings of more than 5 weeks in development time (estimate).