The industrial water treatment installation is designed to deliver 10 million m3 industry water per year. The yet to be built installation will consist of, amongst other things: four intake pumps, three parallel purification lines, six double-layered filters, two transport pumps and four chemical areas. So, the objective of the FMECA was to timely identify potential failure, to assess associated risks and to advise preventive actions for these assets.
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.