HRSGs

Metal temperature is, perhaps, the variable most affecting the service lives of superheaters and reheaters. Long-term overheating of these components can result in failures necessitating multi-million-dollar repairs, based on the experience of Bryan Craig, PE, and his colleagues at HRST Inc. There is an upward trend for overheating failures in the industry, and many HRSGs […]

To address trim erosion on HP-bypass pressure control valves (PCV), HRSG Forum’s Bob Anderson (see previous article) put together a panel of experts—including Ory Selzer, IMI/CCI; Justin Goodwin, Fisher Valve; Vasileios Kalos, GE Gas Power; and Consultant Joe Schroeder. The erosion occurs when high-pressure steam entrains water droplets (not to be confused with saturated steam)

This year’s annual HRSG Forum with Bob Anderson is taking place online in monthly installments. If the first, held May 3, 2021, is any indication, you won’t want to miss any of the upcoming sessions. Follow CCJ ONsite for announcements of session content, dates, and times, and registration link. Invited participants are powerplant owner/operators and

During the Siemens Executive Cybersecurity Forum for Electric Power, held virtually June 17, 2021, Manny Cancel, senior VP, North American Electric Reliability Corp (NERC), encouraged electric-power industry stakeholders to share information on cybersecurity threats, vulnerabilities, and experiences through NERC’s E-ISAC (Electricity Information Sharing and Analysis Center) platform. Cybersecurity alphabet soup is thick enough, and it’s

The High-temperature Defect Assessment conference has drawn international participation since its inception in April 1998. HIDA began as a European Commission and industry supported research project aimed at unifying defect-assessment procedures validated on materials of interest to high-temperature processes—primarily power generation. HIDA continues to meet periodically in response to industry developments and with a strategic

Bill Gretta, principal, SCR Solutions LLC, presented two case studies at a recent HRSG Forum virtual session, in which a unique field test method combined with sophisticated CFD analysis suggested modifications for improving distribution of ammonia through the SCR catalyst modules to improve NOx reduction and ammonia slip. Old units, and many new ones, are

During the HRSG Forum’s second monthly meeting, June 2, 2021, hosted by Bob Anderson and Barry Dooley, close to 130 owner/operator representatives from 34 countries (out of 219 total attendees), were enlightened on two vexing issues with HRSGs: (1) steam-side oxide growth and exfoliation (OGE) from superheater (SH) and reheater (RH) tubes, and (2) the

If the CCUG 2021 Day One roundtable on cold-weather preparation is any guide, winterization continues to vex plant personnel. Many of the issues can be traced to inadequate design bases and insufficient equipment. However, the root cause appears to be building “outdoor” facilities in locations which clearly require far better protection against protracted frigid conditions.

With winter just over the horizon, the roundtable on winterization at the 2021 conference of the Combined Cycle Users Group was perfectly timed. There are still a few weeks, depending on your plant’s location, to implement best practices shared by colleagues from Woodbridge Energy Center, Dogwood Energy, and others. By virtue of its location and

Why would NAES Corp, the largest third-party O&M services provider to combined-cycle facilities, run a three-day conference on NERC-related issues and compliance for its people and select clients and industry stakeholders? For one thing, NAES has 130 plants under its purview and supports over 100 plants outside its portfolio. Then you might ask: Why does