One of the most important systems in a powerplant is the boiler feedwater (BFW) system, says Henry Kwan of SNC Lavalin Constructors Inc, who has more than a decade of experience in the design of thermal energy systems. When well-designed it can accommodate the wide range of operating conditions required to meet today’s varying power …
Cheaper feedwater systems don’t always cost less Read More »
After opening drum doors for inspection, replacing manway gaskets typically calls for plant staff to tighten the manway bolts to a given torque to hold the manway cover in place while the drum is below operating pressure. The seal around the manway is formed when the pressure from the steam inside the drum provides enough …
Eliminating the risk of hot-torqueing steam drum doors Read More »
Dogwood Energy Facility, Pleasant Hill, Mo, like many other combined cycles, opens its steam-drum doors on a routine basis to perform internal inspections. While properly aligning and closing the doors at the end of an inspection is a challenge in and of itself, the larger challenges and risks often are associated with making sure the …
Checking HRSG drum door gaskets: An open and shut case Read More »
Many combined-cycle units originally designed for baseload operation are now required to cycle frequently, with still more starts and more rapid ramping over a wider range when in automatic generation control (AGC) mode. As a result, a significant number of heat recovery steam generator (HRSG) failures experienced worldwide have been at least partly attributed to …
Adapt advanced process control for tighter regulation of SH, RH temperatures Read More »
The HRSG Forum with Bob Anderson contributes significantly to industry knowledge on the design, operation, and maintenance of heat-recovery steam generators with its lineup of technical presentations by subject matter experts, plus hands-on discussions among owner/operators, component and service providers, and concerned OEMs. In sum, this premier event encourages the exchange of experience and specifics …
HRSG Forum expands to include daylong water workshop Read More »
The experiences shared at the Australasian HRSG Users Group (AHUG) annual meeting have been chronicled for the last decade by CCJ ONsite and in the print edition of the Combined Cycle Journal. Beginning here, and going forward, you’ll also benefit from the lessons learned/best practices of fired-boiler owner/operators facing technical and operational issues closely related …
Synergy between fired boilers, HRSGs increases value proposition of AHUG, now ABHUG Read More »
Technical presentations by subject matter experts on topics of importance to owner/operators of combined-cycle and cogeneration plants powered by gas turbines are the foundation of the HRSG Forum with Bob Anderson. Consulting Editor Steve Stultz has abstracted the presentations below from the group’s fourth annual meeting. O&M personnel likely will find at least one or …
INTRODUCTION This two-part report summarizes information on cycle chemistry and thermal transients at combined-cycle/HRSG plants shared at the industry’s leading technical forums worldwide over the last several years—such as the US-based HRSG Forum with Bob Anderson. The foundation for many presentations and discussion sessions on these subjects comes from assessments undertaken in the last decade …
SPECIAL REPORT: Trends in HRSG reliability, a 10-year review Read More »
A valuable feature of Power Users conferences is audience polling, which was pioneered by the 7F Users Group a few years ago. The steering committee and presenters use polling to ask owner/operators for their opinions on industry trends, the information needs of attendees, etc. Because the feedback is virtually instantaneous, it can identify where clarification …
Polling Power: User feedback from the 7F 2020 Digital Conference Read More »
One of the unique aspects of the 7F Users Group’s 2020 Digital Conference is the opportunity to interact online with the OEM and nearly 50 third-party solutions providers. Ten companies in the latter group were selected by the steering committee to conduct live technical presentations which are available for on-demand playpack. The remaining solutions providers …
Easily connect with and view presentations from key suppliers @ 7FUG 2020, Part IV Read More »
