STUG

Explore EthosEnergy’s options to repair over replace that save cost and reduce lead times Perhaps you’re in the middle of a major outage and an issue has cropped up, putting your critical path in jeopardy. Or maybe you’ve received a technical information letter (TIL) recommending the replacement of L-0 blades, or alerting you to issues …

The smart way to upgrade your A10 / D11 steam turbines Read More »

Roointon Erach Pavri had recently retired from GE Energy when he was recognized for “extraordinary contributions” to the electric power industry with the Frame 6 Users Group’s 2007 John F D Peterson Award (photo). Pavri had achieved “hero status” with this organization for his technical leadership in resolving complex gas-turbine application issues. He graduated from …

Dr Roointon E Pavri, Dec 13, 1944-July 2, 2020 Read More »

John Downing, Turbine Controls & Excitation Group (TC&E), celebrated the company’s 10th anniversary with a presentation last Wednesday at the 7F Users Group’s 2020 Digital Conference. He reminded the 300 or so owner/operators in attendance that many gas turbines are starting and stopping far more frequently than originally designed for. At the same time, independent …

7FA LCI digital-front-end case history Read More »

Presentations on turbine lubricants and/or their maintenance are oft-discussed subjects at user-group meetings. Plus, you can expect to see a half-dozen or more companies in the exhibit hall offering fluids and varnish-removal systems—all competing for your business. Having so much information from disparate sources can make it difficult for a user to decide on the …

EPT-CleanOil: A paradigm shift in gas-turbine lubricant maintenance Read More »

If your staff is not experienced in initiating an emergency purge of hydrogen from the generator, personnel at Hermiston Generating Plant, a 474-MW, 7FA-powered 2 × 1 combined-cycle cogeneration facility have a solution to consider. Hermiston developed an emergency hydrogen purge procedure during plant commissioning nearly 25 years ago. It required entering the collector compartment …

How to quickly, safely remove hydrogen from your generator in an emergency Read More »

Mike Dolan, Hytorc’s chief engineer for fasteners, had only a dozen slides and told the 7F audience at the outset that he probably would finish up in 45 minutes. Not! He barely got done the hour maximum for his session. And it was all “good stuff,” including lessons learned and best practices of particular value …

Learn what you might not know about bolting and specialty tooling for large fasteners Read More »

The nondescript title of this presentation, repeated as the headline above, does no justice to its compelling content. A simple “Aaron Frost” would have told you much more. Yes, Frost was back in front of the 7F group sharing his encyclopedic knowledge of metallurgy, repair experiences on selected hot-section components, and views on the promise …

APG empowering solutions for years to come Read More »

A major inspection in March 2020 on one of the gas turbines for a 2 × 1 7FA.03-powered combined-cycle power block at Gila River Power Station revealed severe rubs in the compressor and turbine sections upon unit disassembly. The machine, which did not run at all for 18 months beginning in 2017, operated baseload after …

7FUG 2020: Strut cracks dictate exhaust-frame replacement Read More »

The nearly 300 users attending the Week 4 sessions benefited from six presentations that they considered of high value, judging from the onslaught of questions that carried over into the virtual vendor fair staffed by each of the participating vendors. Quick access to summaries of user and vendor presentations made last Tuesday and Wednesday is …

7FUG 2020: Week 4 user and vendor presentations earn top marks for content Read More »