COMBINED CYCLE Journal: Issue #54

User Group Reports

501F Users Group

Compelling program makes this annual meeting a top priority. Report profiles the following:

  • User presentations on turbine blade-ring burn-through, GT uprate by a third-party services provider, and exhaust cylinder fix.

  • Special closed sessions featuring in-depth presentations by Ansaldo/PSM, GE, Mitsubishi Hitachi Power Systems, Siemens, and Sulzer.

  • Vendorama program incorporating presentations by dozens of products/services providers offering O&M solutions.

Ovation Users Group

Users ponder big issues, knuckle down on knotty problems. Meeting topics included training, power supplies, simulators, control-system replacementsteam-valve actuator issues, hydraulic versus pneumatic actuation, cybersecurity.

Combined Cycle Users Group

Adapt to survive the coming sea change in industry structure. Conference program covered the gamut of challenges facing plant personnel—from boulder- to pebble-size issues. Grid-scale storagesafetyelectrical faultscyber and physical security, in-house NOx mitigation solution, and headaches shared during open discussion sessions are the focus of this report.

7EA Users Group

New challenges arise as equipment ages. Coverage includes the following:

In-depth presentation by Mike Hoogsteden, Advanced Turbine Support LLC
TILs critical to 7EA inspection success

  • 1884, “7EA R1/S1 Inspection Recommendation”
  • 1980, “7EA S1 Suction Side Inspection Recommendations” 
  • 1854, “Compressor Rotor Stages 2 and 3 Tip Loss”
  • 1562-R1, “Heavy-Duty Gas Turbine Shim Migration and Loss”
  • 1744, “S17, EGV1, and EGV2 Stator-Ring Rail and CDC Hook Fit Wear Inspection”

User presentation recap covering a variety of topics

REMEMBRANCE: Paul White’s legacy

When Paul crossed over to the spiritual world from the physical Nov 16, 2017, he was well prepared for the journey and certainly was welcomed by those who had preceded him. He was a deeply religious man who taught Sunday school and gave church activities his full support—all while excelling in his engineering day job, and contributing to gas-turbine user-group initiatives with his deep technical knowledge and considerable people skills. 

Features

SELECTIVE CATALYTIC REDUCTION 
Consider the impact of new operating regimes on your SCR’s performance

GAS TURBINES 
How natural-gas fuel variability impacts GT operation
Scott Sheppard, Ben Emerson, and Tim Lieuwen, Turbine Logic

7B MAJOR INSPECTION 
Case study reveals hidden value in old iron

HEAT-RECOVERY STEAM GENERATORS 
HRSG best practices to plan now for old age

HEAT-RECOVERY STEAM GENERATORS 
“Good tubes don’t fail,” Barry Dooley reminded users attending the special two-day Cycle Chemistry and FAC Workshop that he moderated

NEW DIRECTIONS 
Customer experience drives NV Energy’s overall strategy

PERFORMANCE IMPROVEMENT 
Human performance events become opportunities. Event tracking, reporting, RCA, communications, and proactive error-prevention tools underpin NV Energy’s robust HPI program

EFFICIENT, FAST-START GENERATION 
LM6000-powered combined cycle with OTSG proves fast, flexible, resilient
Dave Tateosian, PE, Clean Power Consulting Partners

7EA BEST PRACTICE 
Ferndale’s ignition-circuit solution to improve starting reliability

7EA BEST PRACTICE 
Eagle Point’s portable CO2 cylinder skid to eliminate ergonomic hazards

Power Users Individual Achievement Awards presented by the steering committees of the Combined Cycle, Generator, and Steam Turbine Users Groups recognized nine industry professionals for their career accomplishments