In 2015, Hamon Deltak Inc. was asked to retrofit and upgrade the SuperHeater Panels of a Heat Recovery Steam Generator designed and fabricated by Deltak in 1998.
Following a carryover incident, the client contacted HDI for panel replacement options. Due to revised ASME code requirements, material stress values would not allow for an in-kind replacement. The tubes needed to be thicker if the original material was to be used. Using thicker tubes would change system pressures and require a rerating and additional redesign on equipment that was not impacted by the carryover event.