COMBINED CYCLE Journal: Issue #51
Features
Protect equipment against corrosion with neutralizing amines, filming products (go)
Mike Caravaggio and Steve Shulder, EPRI
Beware hidden superheater, reheater overheating (go)
Natalie Marini, HRST Inc
Combined-cycle performance optimization (go)
User Group Reports
Generator Users Group (go)
STATORS (go) 
- Rewind experience
- EL CID versus rated-flux testing
- Issues in hydrogen-cooled machines
- Continuous EMI monitoring
- Connection-ring vibration monitoring
- Ground in a 390H generator
- Overheating phase-to-phase failure
- Endwinding vibration
- Global VPI technology
ROTORS (go)
- Field ground indications
- Experience with Alstom air-cooled generators
- Excitation failure
- Emergency rewind
- End-plate indications
- Damaged steel
- Rewind experience
- Thermal sensitivity
TESTING, GENERAL (go)
- Oil-intrusion events
- SFC flashover
- EMI testing
- Hydrogen safety
- Generator testing, overhaul
- GE presentations
Australasian HRSG Users Group (go)
Risk-based planning was an over-riding theme for the 2016 meeting, which covered a full range of heat-recovery steam generator topics—including extended inspection intervals, performance improvement, plant-specific updates, cycle chemistry, and advanced materials.
ACC Users Group (go)
The first day of the eighth annual meeting featured a tutorial on chemistry and corrosion followed by presentations on airflow management, performance enhancements, gearbox maintenance, tube-bundle cleaning, and air in-leakage testing.
Day Two coverage included film-forming agents, windscreen analysis, direct-drive motors, OEM ACC specs, fogging, external inspection, dry-cooling research, and user experiences.
7F Users Group (go)
In-depth content is why 250 or more owner/operators attend this meeting. Major segments of the 2016 program were dedicated to technologies offered by the OEM and PSM, while special technical presentations by third-parties addressed a dozen specific topics. More than a dozen user presentations and closed discussion sessions rounded out the program.
Best Practices Awards
AES Amman East: Safe unloading of oil, optimizing water consumption
AES Levant: Reducing ammonia use without compromising NOx emissions
AL Sandersville: HV-cable support system saves time, money
Colusa Generating Station: Heating blankets, controls enable faster starts
H L Culbreath Bayside Power Station: Fast resolution of combustion-dynamics anomalies
Faribault Energy Park: Manmade ponds reclaim storm water, build community relations
MPC Generating: Redundant hydrogen supply improves availability
Petrobras Chaves: Condenser vacuum pump speeds plant startup
PSE Ferndale Generating Station: Upgrade of CRO interface improves plant operability
Rathdrum Power: Eliminate traffic-flow exposure during hazmat offloads
Rokeby Generating Station: Rain garden/sanitary lagoon upgrade reduces cost
Miscellany
Business Partners (go)
Ring eight bells for Charlie Zirkelback, top-entry ball valves ease maintenance, inspection guide for drum-level instrumentation, duct balloon protects gas turbine during layup, integrated control and simulation platform makes virtual powerplant a reality, salute Mike Hoogsteden for his work on behalf of wounded vets.
