Onsite – Page 41 – Combined Cycle Journal

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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FFS applied correctly benefits water/steam cycle: less FAC, less iron

The sixth annual meeting of the European HRSG Forum (EHF), May 14-16, 2019, Athens, Greece, was a global event with representatives from 17 countries. There were more than two-dozen presentations on the agenda, plus a workshop on water chemistry. CCJ ONsite’s recent report on film-forming substances (FFS), a topic discussed at all recent HRSG conferences,

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Protecting electrical insulation against moisture, dirt helps keep outages on schedule

The negative impact of moisture on electrical equipment has been a serious concern since the beginning of the industry. Most senior plant personnel have had experiences with low insulation resistance (IR) and low polarization index (PI) values that have extended an outage. One example provided by subject-matter experts Neil Kilpatrick, GenMet LLC, and James Michalec,

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