HRSGs

HRSG Forum discussion centers on creep damage, elemental zinc in weld HAZ areas

As usual, a tremendous amount of technical content was offered in two presentations during the HRSG Forum, Jan 28, 2022—No. 7 in a series organized by Chairman Bob Anderson. But the underlying message was more about the state of our industry. A few participants, discussing aging of high-energy piping (HEP), said they were “astonished at …

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Advanced manufacturing center enables Conval to better serve HRSG users 

HP superheater and reheater drain-system designs and operating practices that do not remove all condensate prior to initiation of steam flow during cold, warm, and hot startups are unable to protect tube-to-header connections, header bores, and nozzle-to-header connections from severe thermal fatigue damage. Such damage has resulted in many premature tube failures and can be …

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NDT innovations showcased at HRSG Forum

Innovations, looks forward, and disclosure of new ideas were hallmarks of the second annual HRSG Forum with Bob Anderson, held earlier this year in Houston. TesTex Inc, Pittsburgh, Pa, was there with a collection of ideas including its proprietary remote field electromagnetic technique (RFET) equipment (Fig 1). For internal tube inspection, TesTex has developed and operates this …

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European meeting validates topics under consideration for upcoming HRSG Forum

The fifth annual meeting of the European HRSG Forum (EHF2018), held May 15-18, in Bilbao, Spain, attracted 72 participants from 16 countries. Dr Barry Dooley of Structural Integrity Associates Inc, who chaired the meeting as he had done previously, considered the event “highly successful.” EHF is supported by the International Assn for the Properties of …

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ISO 16890, a new global test standard, facilitates comparison of alternative filters

There’s a new test standard for evaluating the efficiency of HVAC and industrial air filters—Classes G1 to F9. ISO 16890, which completed an 18-month phase-in period in June 2018, is the first uniform filter standard for the world, Jason Tiffany, a product development engineer in the Gas Turbine Systems unit of Donaldson Company Inc, told …

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HRSG hot topics: risk-based inspection, corrosion under insulation, water chemistry

The Australasian HRSG Users Group (AHUG) celebrates 11 years of service to the industry at the organization’s 2018 meeting at the Brisbane Conference and Exhibition Center, November 11-13. Review the agenda here. Of all the HRSG groups outside the US, AHUG has the second longest history, behind only IMechE in the UK. The shared purpose …

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Best Practices shared by plants with LM2500, 7EA, V64, V84, V94, FT8, and SGT-800 engines

The nine Best Practices summarized here conclude CCJ ONsite’s coverage of more than 60 entries in CCJ’s awards program that were recognized by the judges in 2018 for their value to owner/operators of plants powered by gas turbines. Judging of the 2019 entries begins in March. Starting-motor trolley rail increases outage efficiency, safety Florida’s Mulberry …

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Don’t forget to inspect for corrosion under insulation

The second workshop conducted at the 2018 meeting of the Australasian Boiler and HRSG Users Group covered the types of corrosion found under insulation (CUI)—galvanic, chloride, acidic, and alkaline-induced—attributed to moisture buildup on the external surfaces of insulated equipment (piping and vessels). If untreated, CUI leads to corrosion and forced or extended outages. Common temperature …

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Key takeaways from the ABHUG workshop on steam-turbine bypass systems

A workshop on optimization of steam-turbine bypass systems at the 2018 meeting of the Australasian Boiler and HRSG Users Group, led by Bob Anderson, Competitive Power Resources Corp, covered the arrangement, purpose, and methods for operating and maintaining this equipment. Vibrant discussion followed presentations by Anderson, Justin Goodwin of Emerson/Fisher, Ory Selzer of IMI CCI, …

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