HRSGs

There are several reasons stacks don’t get much attention from operators on their rounds—among them: They’re static and there’s nothing much to see externally except perhaps peeling paint. Forgetting the switchyard, they’re likely a longer walk from the control room base than any other plant component. Internal access is not possible with the plant in […]

By Vaughn Watson, Vector Systems Inc The performance of an SCR system depends on the robustness and efficiency of the sum of its parts. The flow-distribution devices placed into the exhaust stream are no exception. Each of the critical parts of the system must be designed and built to effectively provide the proper distribution and

The headline should not surprise any reader of the COMBINED CYCLE Journal. It’s a “given.” The challenge is how to maximize the saving at the least cost. Until relatively recently, the widely preferred method for cleaning tubes in heat-recovery steam generators serving cogeneration and combined-cycle plants was dry-ice blasting. It effectively dislodges iron oxides, ammonia

By Steven C Stultz, Consulting Editor The Ninth IAPWS European HRSG Forum (EHF 2023) took place in Prato, Italy, May 16 – 18. More than 80 attendees from 18 countries joined this event to discuss key global issues for combined-cycle owners, operators, plant personnel, service providers, and consultants. EHF is one of three associated annual

By Steven C Stultz, Consulting Editor The sixth annual IAPWS Conference on Film Forming Substances, held March 21-23 (2023) in Prato, Italy, was chaired by Barry Dooley of Structural Integrity Associates (UK) and David Addison of Thermal Chemistry (New Zealand). FFS conferences, sponsored by the International Association for the Properties of Water and Steam, are

By Vaughn Watson, Vector Systems Inc The long-term performance of an SCR system depends on the efficiency of its critical components (Fig 1). While the catalyst often gets all the credit, and all the blame when performance declines, proper maintenance and routine inspection of the ammonia system can alleviate and prevent many factors that contribute

ACCUG 2023, June 20-22 The Air-Cooled Condenser Users Group’s 2023 meeting will be held at Dominion Energy’s Innsbrook Technical Center in Glen Allen, Va, June 20-21. Thursday, June 22, is reserved for an optional tour of the utility’s Greensville County Power Station’s ACC. Visit https://acc-usersgroup.org for meeting details, hotel suggestions, registration, etc. Questions? Contact sheila.vashi@sv-events.net.