HRSGs – Page 3 – Combined Cycle Journal

HRSGs

HRSG Forum 2023: Cycle Chemistry and FFS Workshop

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

HRSG Forum 2023: Cycle Chemistry and FFS Workshop Read More »

Don’t forget the stack in your annual inspections

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

Don’t forget the stack in your annual inspections Read More »

EMISSIONS CONTROL: The importance of perforated-plate design in simple-cycle SCR systems

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

EMISSIONS CONTROL: The importance of perforated-plate design in simple-cycle SCR systems Read More »

GROOME BOOM: Clean HRSG tubes save fuel, improve plant’s bottom line

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

GROOME BOOM: Clean HRSG tubes save fuel, improve plant’s bottom line Read More »

SCR SYSTEM PERFORMANCE: Ammonia-system maintenance considerations

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

SCR SYSTEM PERFORMANCE: Ammonia-system maintenance considerations Read More »

Scroll to Top