Desalination Plant Redesign

DSA was involved in remediation work at the Victorian Desalination Plant. Part of this work was the design review and subsequent redesign of parts of the GRP piping system.

During DSA’s design review, several deficiencies were picked up in the design work submitted by the supplier. As a result of this, DSA provided detailed stress analysis of a number of piping systems. Caesar II was used to analyse piping systems for compliance
to BS7129. The BS7129 pipe design was calculated from the manufacturer’s laminate construction.

As a result of the stress analysis, parts of the pipe needed to be derated to remain in service. DSA also conducted FEA on some branches, where stress levels had been exceeded and could not be derated. The result of the FEA was the need to apply localised
reinforcement at the stress concentrations.

DSA also reviewed several flanges and found these were outside the code. As the flanges needed to be machined to have washers installed, an FEA was done to provide a rerating of the flange after machining.