By Cesar Moreno, HRST Inc Connect with Cesar on LinkedIn Gr 91 material is named after its main components: 9% Cr and 1% Mo-V. It was developed in the late 1970s, with the focus of its use in the nuclear power industry. The material is part of the Creep Strength Enhanced Ferritic (CSEF) steels group, […]
HRSG DESIGN: Impact of Code changes to Gr 91 allowable stress values Read More »
Kings Mountain Energy Center Owned by Carolina Power Partners LLC Managed by CAMS Operated by NAES Corp 475 MW, gas-fired 1 × 1 M501GAC-powered combined cycle, located in Kings Mountain, NC Plant manager: Sean Spain Storm shelter protects staff during weather events Challenge. A mid 2020 tornado that touched down within a mile of Kings
Variety of best practices keeps advanced-class CCGT running strong Read More »
Athens Generating Plant Owned by Kelson Energy Operated by NAES Corp 1080 MW, gas-fired facility equipped with three 501G-powered 1 × 1 combined cycles, located in Athens, NY Plant manager: Steve Cole Challenge. Athens Generating Plant has been plagued with seal-oil issues since first fire more than 20 years ago. Throughout the years, the seal-oil
Eliminate generator trips caused by fluctuations in seal-oil temperature Read More »
ProEnergy recently expanded its global reach in aero-engine maintenance services, signing a total-care service agreement (TCSA) with a subsidiary of the Egyptian Electricity Holding Co (EEHC) for eight of its LM6000 generating units. The state-owned company operates more than 55,000 MW of generation capacity and manages electricity delivery to more than 38-million consumers. East Delta
ProEnergy, Egyptian power producer partner on aero maintenance Read More »
Online forums sponsored by gas-turbine user groups are of increasing value to owner/operators, especially given today’s smaller O&M staffs at simple-cycle, combined-cycle, and cogeneration plants and the loss of experienced personnel to retirement and better opportunities. Long gone are the days of on-the-job training when new employees would tag along with experienced crews to grow
WTUI AERO DISCUSSION FORUM: O&M advice free for the asking Read More »
Seasoned owner/operator personnel tackle the biggest industry issues The depth and breadth of experience represented by 11 owner/operator presentations at the 2023 7F Users Group Conference can be summed up like this: Chronologically, they represent machines dating back to the original F-class gas turbines (GT) off of the test stands in 1988. Numerically, these users
7F Users Group 2023: User Presentations and Discussion Read More »
After reading the high-level summaries of the vendor presentations from the 2023 7FUG presented here, go to www.powerusers.org and look at the slides, available for viewing to user members of Power Users (user non-members will have to apply and be approved by the leadership). If you are responsible for 7Fs in your fleet, the editors
7F Users Group 2023: Vendor Presentation Recaps Read More »
By Rishi Velkar and Todd Robison, NV Energy Combined-cycle plants built during the construction boom of the late 1990s/early 2000s are now about 70% through their 30-yr design lives. Although not originally designed to cycle, ever-increasing amounts of solar energy readily available on the grid, especially in the Southwest, make it economically prudent for these
WORK MANAGEMENT: A proven method for improving operational reliability Read More »
The 13th annual meeting of the Air-Cooled Condenser Users Group (ACCUG) was held June 20 – 22 (2023) at Dominion Energy’s offices in Glen Allen (Richmond), Va. Strong international participation, interaction, and discussion enhanced the benefit of this event to all ACC owner/operators, service providers, and technical consultants worldwide. The presentations discussed below, which focus
Air-Cooled Condensers: ACCUG 2023 Conference Recap Read More »
CPV Valley Energy Center Owned by CPV/Diamond Generating Corp Managed by Competitive Power Ventures Operated by DGC Operations LLC 680 MW, gas-fired 2 × 1 SGT6-5000-powered combined cycle, located in Middletown, NY Plant manager: Michael Baier Overcoming unique challenges to optimize ACC performance Challenge. At first glance, the air-cooled condenser (ACC) at Valley Energy Center
ACC and H20 Best Practices from CPV Valley Energy Center Read More »
