Sheppard T. Powell Associates, LLC (STPA) offers to our clients an independent perspective for equipment inspections. Inspections of steam/water cycle components has provided critical information about steam/water separation, corrosion product transport, control of the oxidation state (and flow accelerated corrosion in LP/IP evaporators) during normal operation, control of layup, and other aspects of the chemistry program performance, which may not be apparent in the chemistry data. Our inspections mainly have focused on the water and steam side of the following components.
- Boiler and Evaporator Drums (steam drums, mud drums, as well as lower headers for forced circulation boilers)
- Deaerator Heater and Storage Tank
We also have been involved to a lesser extent with the inspection of flash tanks, condensate and feedwater heaters, and turbines. At the August 2017 Power Plant and Environmental Chemistry meeting Mr. Bartholomew provided a presentation on inspecting the steam side surfaces of condensers.