COMBINED CYCLE Journal: Issue #55
Features
COMMENTARY: What the digital revolution means for electricity
CONTROL SYSTEM UPGRADES: NV Energy commissions seven turbine DCSs in seven weeks
GAS TURBINES: Turbine blade, vane cooling—a primer
Lee S Langston
TURBINE FLUIDS: How does PAG stack up against mineral oils after a decade of use?
GAS TURBINES: Doosan takes a high-profile position in aftermarket services
CONSERVATION: Ravenous ruminants rid reservoirs of renegade reeds
Colleen Dolan and Regina Chan
MATERIALS ANALYSIS: Group-sponsored development projects share results, reduce costs
TURBINE VALVES: How to prevent an actuator failure from tripping your plant
GEOMAGNETIC DISTURBANCE EVENTS: New NERC standard aims to mitigate effects of GMDs
VIEWPOINT: Utilities embrace digital technology within the same old business models
User Group Reports
Ovation Users Group
At UT-Austin, real-time optimization pushes out into distribution networks.
ACC Users Group
Performance improvements in fans, heat transfer, and water chemistry reflect a global effort of collaboration among owner/operators, suppliers, and consultants.
Frame 6 Users Group
The steering committee, energized by second-year conference organizer, Greg Boland, injects a training component into its program, organizes a webinar to share information between meetings.
Alstom Users Group
Owner/operators of Alstom engines, concerned about access to technology and services in the aftermath of GE’s purchase of their OEM, gather in Charlotte to develop a roadmap for success.
7F Users Group
Steering committee, OEM discuss ways to improve field service
Best Practices, integrated into the 7FUG Top Issues session for the first time last year, recognized the accomplishments of the following plants:
Rowan, how to detect GT leaks offline
Rathdrum, a simple concrete wall facilitates cleanout of cooling-tower basin
Nuevo Pemex, leak-testing of gas turbines with helium
Faribault, air attemperation system assures superheated steam on startup
Calhoun, cardox-tank double relief valves facilitate testing, maintenance
T A Smith, acoustic monitoring provides early leak detection
Vandolah, purge air protects isophase-duct against moisture intrusion
Best Practices Awards
AES Amman East: PI system underpins ISO 50001 certification
AES Levant: Conserve energy, reduce parasitic load, save money
LSP-Whitewater: How to reduce post-outage recovery time, minimize pitfalls on restart; new LOTO program results in zero violations
Lea Power Partners: Closed-loop chilled-water monitoring system; fuel-gas-heater inlet temperature control
New Harquahala: Still correcting design deficiencies more than a decade after COD
Midulla: Wireless technology benefits plant operations, management
Dogwood: Plant infrastructure upgrade streamlines outages
Orlando Cogen: Chlorinator conversion from bleach; lone-worker emergency response; arc-flash procedures made easy
BASF Geismar is recognized with a Best Practices Award for configuring controls to dispatch steam more economically.
