Digging deeper into offshore corrosion prevention and monitoring




Due to their location at sea, offshore installations are subject to an exceptionally high level of corrosiveness. No surprise this is a hot topic on the masterclass 'Corrosion solutions for offshore renewable energy devices'. Specialist in the field Hendrik Müller will give a brief overview of the condition of corrosion protection systems on offshore wind turbines, while C-Cube will explain how its EIS based measurement can be used to keep track of the quality of coatings. Sirris will give an insight into the current state of the art, techniques for monitoring and the road ahead.

Corrosion causes billions of euros worth of damage every year. Worldwide, approx. 5 ton of steel are lost per second due to 'rusting'. Corrosion protection is very diverse and encompasses several special fields that differ from one another. A multitude of norms, standards and regulations provide guidelines for professional planning and execution for the production of long-lasting corrosion protection systems. Particularly in corrosion protection, sound practical experience in the respective sector is required for the execution of such specialized services and also for such quality assurance checks.

Due to their location at sea, offshore installations are subject to an exceptionally high level of corrosiveness. This applies both to the surface area with an exclusively atmospheric corrosivity load and especially to the splash water and under-water zones. Inadequate coating systems or poor processing during the manufacture of the corrosion protection can cause corrosion damage in a very short time.

Hendrik Müller, a level III inspector with 17 years’ of practical experience in corrosion protection and numerous references in offshore projects will give you a brief overview of the condition of corrosion protection systems on offshore wind turbines. Pictures will be used to show examples of typical damage, the cause of the damage and methods to prevent it.

Some, if not most parts of offshore structures are protected from corrosion by applying coatings. Over time, these coatings degrade and need to be refurbished. Costs can be greatly reduced by overcoating before the coating breaks down completely and corrosion becomes visible, as removing the corrosion products requires more surface cleaning. C-Cube will explain how its in-house developed EIS based measurement can be used to keep track of the quality of a coating and take action at exactly the right time, before actual corrosion becomes visible.

In order to optimise the design of offshore foundations and improve lifetime calculations and O&M, a lot of effort has been spent on structural health monitoring (SHM). The focus of SHM has mainly been on monitoring of the mechanical behaviour of structures (loads, vibrations). However, also corrosion monitoring can provide important insights. Development is still ongoing to make corrosion monitoring generally accepted. Jeroen Tacq from Sirris will give an insight into the current state of the art, techniques for monitoring and the road ahead.

Want to know more? Join us for our masterclass on 2 December!

The masterclass 'Corrosion solutions for offshore renewable energy devices' will be organised in the context of the Interreg project OPIN. It is free for OPIN members. If your organisation is not listed here, please fill out the following Membership Form. OPIN registration is quick, free and gives access to an international network of more than 400 members and activities dedicated to offshore renewable energy. 

(Source picture: EMEC Gallery  (emec.org.uk) and FLOATGEN (floatgen.eu))