CFD optimization and design of new UV unit for Desmi Ocean Guard CompactClean BWT

1. Gasværksvej 26, DK 9000 Aalborg www.R-R-Consult.com www.LinkedIn.com/company/R&R-consult Info@R-R-consult.com
CFD modelling for Design and Optimization of new DESMI Ocean Guard
CompactClean UV unit

2. UV Radiation distribution
Gasværksvej 26, DK 9000 Aalborg www.R-R-Consult.com www.LinkedIn.com/company/R&R-consult Info@R-R-consult.com
DESMI Ocean Guard develops and
sells ballast water treatment
systems for the removal of living
organisms from ships' ballast
water. The company has
developed type approved ballast
water treatment systems and
is located in Nørresundby,
Denmark.
In collaboration with the Engineers
at Desmi Oceanguard, R&R Consult
designed six standard sizes. Each
unit was optimized with respect to
a small footprint and very high
treatment efficiency.
.
Particle flow, coloured by received dose
The UV unit has a unique shape
and patent pending, which is a
result of numerous numerical
investigations. We have assisted
in the design of the UV unit by
doing the CFD modelling of each
unit. The work has been both
challenging and rewarding and
required a good understanding of
fluid mechanics in order to
evaluate the complex flow.
Desmi Ocean Guard not only
strived for a design that fulfils
minimum requirements, but really
aimed to develop the best-in-class
solution.
High Efficiency Keeps your OPEX Down
According to DESMI Ocean Guard, the patent-pending UV
unit design has very high treatment efficiency and reduces
power consumption.
R&R Consult developed and optimized the special shapes of
the CompactClean UV chambers based on hundreds of
state-of-the-art CFD simulations. This ensures that each kW
of generated UV light is utilized to the max. As a result,
power consumption is as low as possible and operational
costs are reduced.
All CFD simulations featured detailed geometries of the UV
unit, 3D Turbulent flow, high resolution pure hexahedral
mesh for capturing the large gradients of the UV radiation,
DO radiation and particle tracking with UDF file for
calculating received dose for each particle. The CFD
calculation approach followed best practice guides for
modelling of UV units, with a few improvements/ extensions
by R&R Consult and the method was reviewed and approved
by Lloyd's register.
CFD modelling for Design and Optimization of new DESMI Ocean Guard
CompactClean UV unit