HRSG preservation during shutdowns: a key issue often neglected

The preservation of HRSG fluid and steam systems during shutdown periods is an important objective at any power plant. However, this is often one of the most neglected aspects of HRSG operations. Improper layup will lead to increased corrosion, which can be the initiator of serious major failure mechanisms that will affect plant availability. Tetra Engineering has assisted plant owners and operators in developing practical preservation strategies tailored to the expected shutdown duration, equipment condition and available site infrastructure. Misha Gadher*, Mechanical and Thermal Process Engineer, and James Malloy**, Senior Consultant, Tetra Engineering Europe, Sophia-Antipolis, France