HRSGs

By Vaughn Watson, Vector Systems Inc Connect with Vaughn on LinkedIn The efficiency and long-term performance of an SCR system is largely dependent on several key design considerations for its various components. When complex NOₓ reductions on heat-recovery steam generators (HRSGs) are required, there are critical aspects of the system that must be addressed to […]

By Cesar Moreno, HRST Inc Connect with Cesar on LinkedIn Gr 91 material is named after its main components: 9% Cr and 1% Mo-V. It was developed in the late 1970s, with the focus of its use in the nuclear power industry. The material is part of the Creep Strength Enhanced Ferritic (CSEF) steels group,

Steven C Stultz, Consulting Editor Editor’s note: Registered users can access the comprehensive slide deck developed by EPRI for its HRSG Technology Transfer Workshop, go to www.powerusers.org, click the HRSG Forum logo and then the “Conference Archives” button at the top of the screen. As a final day attached to the HRSG Forum’s 2023 Conference

Steven C Stultz, Consulting Editor Barry Dooley, Structural Integrity Associates (UK), opened the Cycle Chemistry Workshop on Day One of the HRSG Forum’s 2023 Conference and Vendor Fair, June 12 – 15, at the Renaissance Atlanta Waverly, with Film-forming substances for combined-cycle/HRSG plants: History, background, and needs. He first presented IAPWS nomenclature background for film-forming

Steven C Stultz, Consulting Editor The afternoon workshop on Day One of the HRSG Forum’s 2023 Conference and Vendor Fair, June 12 – 15, at the Renaissance Atlanta Waverly, focused on welding and metallurgy. It was a combined effort among Jeff Henry and Kevin Hayes, Applied Thermal Coatings, and Amy Sieben, Industrial Air Flow Dynamics

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