The design FMECA that we performed investigated the risk of technical failures of the preliminary design of the plant, assessed the preliminary design against the performance and reliability requirements and served as advice on required design changes and preventive maintenance focus points. The scope of this study encompassed 140 units and 900 components.
By using this approach, we had enough information to do a design FMECA on the preliminary design, to determine essential improvements to the final Piping and Instrumentation Diagrams (P&IDs), and to identify the risks and necessary alterations to the design as well as determine what components will need preventive maintenance to offer full availability and reliability of the installation.
The results can be split up into three categories.
- Design modifications and focus points for preventive maintenance
With this design FMECA we were able to detect critical failure risks in time to be able to change the design and appoint focus areas for the preventive maintenance program and thereby ensuring the reliability of the installation.
- Optimization of plant breakdown structure and tagging
Because the design FMECA was an extra ‘dry exercise’ at unit level before implementation in the asset management system, it offered the opportunity to change the plant breakdown structure where needed.
- Knowledge transfer
Another result is that due to the structured way of working in a multidisciplinary group, different experts from the collaborating companies Evides Industry Water and Water Company Groningen were able to share a lot of knowledge, connect and collaborate more strongly on this joint project.