Best Practices

The COMBINED CYCLE Journal and the steering committees of the industry’s leading user groups—including 7F, 501F, 7EA, Western Turbine, Frame 6, 501G, 501D5-D5A, AOG, and Combined Cycle—collaborate to expand the sharing of best practices and lessons learned among owner/operators of large frame and aeroderivative gas turbines. Fifty plants participated in the 2020 Best Practices Awards […]

Editor’s note: This article is based on the presentation, “Frame 6/6A3 ‘minor’ outages turned into majors with field rewinds,” by Jamie Clark of AGTServices Inc at the 2019 meeting of the Frame 6 Users Group. Owner/operators will have the chance to hear Clark’s presentation, “5 Generator Minors Turn Into 3 Generator Majors!!!,” on June 23

Performance, flexibility upgrades boost profitability in dynamic market Lawrenceburg Power operates in the PJM Interconnection. Plant owner Lightstone Generation wanted a reliable, cost-effective upgrade to simultaneously maximize capacity payments and align combustion and hot-gas-path (HGP) inspections at a 32,000-hr maintenance interval. The plant operates in a shale-gas region and can receive fuel from multiple sources

Two relatively short white papers available from Mitsubishi Power can bring you up to speed on the state-of-the-art and future of remote operation and support and on digital strategies for improving steam-plant performance. Some of the insights shared on the latter topic also are of value to combined-cycle owner/operators. “Remote Operation and Support—the New Normal?”

Mitsubishi Power (MP) finished 2020 with the highest market share for large frame gas turbines in the Americas, according to McCoy Power Reports, a power-industry market data service. The company’s sales totaled 3288 MW, 54% of total orders in the region. More than half MP’s 2020 orders include a hydrogen performance guarantee or have a

O&M Clinic for Legacy GE Gas Turbine Users Turbine Tip No. 13 by Dave Lucier, owner/GM, PAL Turbine Services, applies to General Electric package power plants (PPP), including Model Series 5001P, 6001, and 7001.  GE gas turbines are equipped with dc emergency lube-oil pumps (GE designate 88QE). This device is controlled at the motor control

O&M Clinic for Legacy GE Gas Turbine Users Turbine Tip No. 11 by Dave Lucier, owner/GM, PAL Turbine Services, applies to General Electric package power plants (PPP), including the following: Model Series 5001, 6001, and 7001. GE installed heaters in the accessory and turbine compartments (combustion-chamber area) to maintain their space temperatures at levels that

If you’re having difficulty with your F-class gas turbine OEM when it comes to repair of hot-gas-path (HGP) components, MD&A wants you to know they not only have the experience you are seeking, but also enhancements, which will extend service life, plus better transparency and customer oversight throughout the repair process. In the “Extending Service

The spate of lawsuits filed in the aftermath of the 2021 winter storm that left millions in Texas without power for days and sent natural-gas prices soaring to their highest levels in years—up nearly 17,000% in some cases, according to a Wall Street Journal report—testify to the value of having dual-fuel gas turbines as part

The numbers are eye-opening: 20-MW gain in simple-cycle output, 3.8% heat-rate improvement in simple cycle, a stable GT turndown to 38%, and less than 9-ppm NOx across the load range. That’s what PSM and Salt River Project’s (SRP) Desert Basin Generating Station reported at the 2021 501F Users Conference after upgrading a 2001 vintage Siemens