Cathodic protection
has been widely used for protecting structures from
corrosion.
The design of Cathodic Protection systems
normally relies on a combination of experience, experiemental
data and heuristics. However, problems and failures
of Cathodic Protection systems not only has an economic
cost, it can also present a threat to life and the environment.
Recent advances in computer modeling
have enabled the performance of cathodic protection
systems in protecting metallic surfaces to be predicted
by simulating the environment and the electrochemical
processes on the metallic surfaces.
These advances have been applied on
offshore and marine installations such as offshore platforms
and ships.
BEASY provides the tools to quickly
and easily produce a virtual prototype of a pipeline
or structure so that the performance of the Cathodic
Protection design can be assessed.
Confidence
in the design and validation of its performance under
difference operating conditions can be obtained using
the computer simulation. Therefore, the need for expensive
post commissioning surveys and costly repairs can be
reduced.
- Proven track record in
the offshore industry
- Approved validation method
for Cathodic Protection designs
- Increased confidence in
your design
Optimise
Cathodic Protection System Design
BEASY provides the corrosion engineer
with the ability to model the performance of a Cathodic
Protection system and to modify the key parameters to
achieve maximum protection of the structure. Stray
currents from other sources (such as ships nearby, tanks,
etc.) can interfere with the operation of the Cathodic
Protection system and reduce its ability to inhibit
corrosion, and in some cases, reverse the Cathodic Protection
process and accelerate corrosion in sections of the
structure.
Interference
Reduction
It is difficult to imagine how many
different kinds of electrical impulses surge through
the underground environment today. Power lines, transit
rail lines, communication cables and industrial plant
foundations are just a few of the contributors to this
buried infrastructural nervous system. In the
past, predicting Cathodic Protection interference before
a Cathodic Protection system was installed was difficult.
Mitigating unwanted Cathodic Protection
interference was a task of adopting very conservative
designs combined with extensive post-commissioning programmes
of measuring potential shifts on foreign structures.
Moreover, defining a criterion for Cathodic Protection
interference in terms of a potential shift is fraught
with danger. In some cases a particular potential shift
may pose a serious threat while in other circumstances
the same shift may be insignificant.
With BEASY, interference between adjacent
pipelines can be predicted. In this application the
impact of a coating holiday on the protection potentials
is identified. BEASY provides the tools to understand
this complex system and predict how pipeline and storage
tank cathode protection systems will perform. BEASY
quantifies the interference and enables easy modification
of the Cathodic Protection design to reduce these effects.
Detailed data on potential shifts and current demand
are computed.
Offshore
Structures
FEM type structural models can be automatically
converted into BEASY corrosion models using the FEM
interface. Special tools are also available to add sacrificial
anodes to a structure.
Anode
Performance
Detailed information is obtained on the performance
of the anodes. For example, the anode consumption rate,
life expectancy and remaining life is redicted for sacrificial
anodes.
Download
Corrosion and Cathodic Protection Brochure
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