Tetra Engineering provides a full-scope service for the modelling and operation analysis of all types of natural or forced circulation Power Boiler and HRSGs, including supercritical and once-through designs. This can be integrated into a full plant model to incorporate the steam turbine and steam cycle balance of plant.
The level of detail can be adapted to focus on local effects (e.g. row-to-row temperature differences) and can be steady-state or time-dependent, the latter to model transients such as startups. The state-of-the-art Power Plant Simulator and Designer™ (PPSD) software package developed by KED software is the primary tool for this work. Frequent applications at Tetra Engineering include:
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Idle periods are getting longer as plants move to cycling or standby, and corrosion during layup can do serious damage. Pitting can penetrate a tube wall in a few weeks. In the October 2026 issue of Modern Power Systems, Misha Gadher and James Malloy of Tetra Engineering Europe compare five preservation methods and show how one coastal combined cycle plant matched each method to each system for a six-month shutdown.
