Onsite – Page 64 – Combined Cycle Journal

Industry aims for more accurate assessment of creep damage in high-temperature boiler, turbine components

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 […]

Industry aims for more accurate assessment of creep damage in high-temperature boiler, turbine components Read More »

Improve NH3 distribution to reduce NOx and ammonia slip

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

Improve NH3 distribution to reduce NOx and ammonia slip Read More »

Steam-side oxides, poor NH3 distribution tackled during second virtual HRSG Forum

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

Steam-side oxides, poor NH3 distribution tackled during second virtual HRSG Forum Read More »

Diaphragm dishing most severe in steam turbines installed during the last three decades

The “Diaphragm Dishing Issues” presentation by Steampath Engineer Jeff Newton in MD&A’s Spring 2021 Webinar Series (February 18) addressed permanent axial distortion of steam-turbine diaphragms, commonly known as dishing. The effect is usually caused by deficiencies in main weld depths, weld materials, welding processes and/or steampath design with the maximum movement at the horizontal joint

Diaphragm dishing most severe in steam turbines installed during the last three decades Read More »

European HRSG Forum shines spotlight on tube failures, cycle chemistry, materials issues

Co-Chairs Barry Dooley of Structural Integrity and Bob Anderson of Competitive Power Resources hosted 90 participants from 17 countries at EHF2021, a virtual event conducted May 18 and 20. More than 60% of the attendees were from 15 generating companies. The 18 presentations made during the meeting covered new information and technology related to HRSGs, plus

European HRSG Forum shines spotlight on tube failures, cycle chemistry, materials issues Read More »

State of the Turbine World: Recorded presentations by Mark Axford, Tony Brough, and GridSME

The gas turbine world had to wait until June 22 of the Western Turbine Users Inc’s (WTUI) 2021 virtual conference for the session billed by the independent organization of gas-turbine owner/operators as “Axford & Friends.” But the wait was well worth it. Houston-based Turbine Consultant Mark Axford is a crowd favorite at this meeting, having

State of the Turbine World: Recorded presentations by Mark Axford, Tony Brough, and GridSME Read More »

Grid meltdown forces cold-weather prep to front burner

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.

Grid meltdown forces cold-weather prep to front burner Read More »

Management of compliance risks focus of NAES’ 2021 NERC conference

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

Management of compliance risks focus of NAES’ 2021 NERC conference Read More »

Scroll to Top