501 F&G Users Group

How adjustable peak firing can improve your plant’s bottom line

Depending on your plant’s power purchase agreement, adding peak-firing capability to simple- and/or combined-cycle gas turbines can provide significant economic benefit—provided the peak-fire capability is used strategically at times of high demand to avoid unnecessary maintenance. Recall that traditional peak firing increases the firing temperature a fixed, incremental amount above the rated baseload value. This …

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Filter cleaning procedure gives heat-rate improvement at Tuxpan

Tuxpan, home to two 501F-powered 2 × 1 combined cycles operated by NAES Corp in Mexico, is located in a salt air environment containing a great deal of dust from both agricultural and industrial activities in the area. These contaminants present a challenge because plant performance rapidly degrades as the air inlet filters foul. Quarterly, …

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Inlet fogging pump upgrade reduces O&M cost, increases revenue at Fremont

Costly fogging-pump failures and consequent maintenance repairs had negatively affected Fremont Energy Center’s summer peak season performance and its maintenance budget. Plant personnel realized the need to prevent premature pump failures and avert costly fogging-system downtime. The plant maintenance staff began investigation of multiple issues linked to premature failures of the station’s fogging pumps. In …

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Klamath reroutes fuel-gas piping above-ground, cuts inspection cost dramatically

TransCanada, Klamath Energy’s fuel-gas supplier, installed its control, filtering, and metering station at the plant fence. The piping network on plant property, serving the gas turbines, auxiliary boiler, and plant heaters, was buried, and expensive to inspect. Buried gas lines serving the facility’s 501F-powered 2 × 1 combined cycle had to be inspected every five …

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Ovation Users Group: Automation rises to platform for ‘trusted’ services

Intel, the venerable computer chip maker, is often lauded by marketing gurus for its “Intel Inside” stickers. The strategy allowed a supplier of invisible “pieces and parts” to be brand-recognized by the end user. Emerson’s Power & Water Solutions business might consider “Ovation at your side.” At its annual Ovation Users Group conference, the Emerson …

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Vendor presentations cover the waterfront of O&M information needs for 501F users

The 501F Users Group Vendorama program gives attendees access to live presentations by dozens of products/services providers offering O&M solutions. The program matrix for the 2019 meeting allowed each attendee to participate in up to seven presentations, vetted for technical content by the organization’s Board of Directors. There were seven sessions, each featuring five concurrent …

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GTA endorses federal gas-turbine R&D program

The Gas Turbine Association (GTA) salutes Congressmen Paul Tonko (D-NY) and David McKinley (R-WV), and Senators Lisa Murkowski (R-AK), Thom Tillis (R-NC), Richard Burr (R-NC), and Joe Manchin (D-WV), for the time and effort they and their respective staffs contributed to advancing the Energy Act of 2020. GTA Chairman Jonathan Li noted, “GTA appreciates the …

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Real-world experience firing hydrogen/natural-gas mixtures

Regardless of where you fall on the 3Hs of the H2 economy—hype, hope, happening soon—everyone can appreciate a seminar which delivered information on actual experience. The webinar, “Hydrogen: Utilizing Combustion Turbines as a Solution to ‘Low to No-Carbon’ Initiatives,” was presented by PSM (Power Systems Mfg LLC). After a quick review of global-climate headlines, Jeff …

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Visit Siemens’ Customer Extranet Portal for details on its comprehensive 501F update

The Siemens session at the 2020 501F Users Group began with a high-level update on the Siemens Energy spinoff. Also highlighted was Siemens Energy’s roadmap to “Making Energy Greener.” A comprehensive gas-turbine update followed with technical updates on these topics: Hexavalent chromium residue. Air-separator radial rubs and axial wear. Exhaust manifold. Advanced two-piece exhaust. D5 …

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GE focuses on performance upgrades, HRSG cleaning in its fourth year at 501F

The 2020 conference of the 501F Users Group marked GE’s fourth year of participation in this event, coordinated by Said El-Nahas, 501F product manager, and Ben Myers, service engineering manager. The program began with an introduction to GE Gas Power, a new organizational structure combining the company’s new-unit and services operations under a single business …

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