With just a few excellent slides and a tag team of a design specialist and a construction specialist, Greg Rueff, Vogt Power International, and Tim Holland, TEiC (a Babcock Power company), showed attendees at the first installment of the HRSG Forum’s Supplier Workshop Series that sometimes you have to “redesign and replace” to relieve your […]
Two HRSG case studies: Flawed original designs get corrected Read More »
Plant managers diligently pursue O&M strategies that have a high probability of success for keeping their electric generating assets in service throughout the “must-run” season—this to assure a profitable year. Deciding on what inspections are necessary to access the information needed for reliable decision-making is part of the challenge. Today’s meager budgets do not allow
Proper HRSG inspection helps guard against a forced outage Read More »
In a webinar August 12, experts from Mitsubishi Power Americas (MPA) shared a first-order long-term modeling exercise which showed that a centralized hydrogen storage facility and hydrogen-fueled prime movers can economically avoid having to curtail wind and solar energy in the Western Electricity Coordinating Council (WECC) and improve carbon footprint even further than a baseline
Get more from renewables with seasonal, centralized H2 assets Read More »
The first thing to note about the GE presentations made at the 2020 virtual conferences of Power Users’ Combined Cycle, Power Plant Controls, Steam Turbine, and Generator Users Groups is that you’re probably going to want to listen to the recordings, if you’re approved to access them at the OEM’s MyDashboard website. For the Power
A 480-MW 1 × 1 combined cycle was experiencing NOx emissions above its 2-ppm stack permit limit. The problem was more pronounced with supplementary firing, so the plant was restricted both in its level of duct firing and overall output. This HRSG, which incorporates a heat-recovery section directly upstream of the SCR (the “box” in
Repairs to gas baffles between HRSG tube panels restore SCR performance Read More »
A presentation entitled “Does Your Backup System Work—Really?” during Week Three of the Combined Cycle Users Group (CCUG) 2021 virtual conference reminds why user groups can be worth their weight in gold. The presenter, asset manager for a 600-MW, 2 × 1 combined cycle with Siemens 501FD gas turbines and a KN steam turbine/generator, reviewed
Non-chemical alternatives control algae in River Road’s cooling tower Five years after COD, Clark Public Utilities’ River Road Generating Plant, operated by GE, was compelled by the Washington Dept of Ecology to eliminate the use of chlorine for biological control in its cooling tower. Instead, the plant was instructed to use bromine. Several years after
2020 Best of the Best: River Road Read More »
A combination of ultrasonic energy, AM radio-frequency waves, and sun shades managed to tame severe algae growth in the cooling tower at River Road Generating Station, according to Operations Manager Justin Hartsoch, GE Gas Power O&M. He told participants in the 2021 conference of the Combined Cycle Users Group (virtual) that algae blooms became a
Minimize growth of ‘non-cash crop’ in your cooling water system Read More »
You’ll want to watch the video below from Bill Kitterman’s “Tube Repair Clinic: The Good, the Bad, and the Ugly,” even if just to see the pictures of the “uglier” and the “ugliest” tube-to-header welds (photos). In true photojournalism fashion, Kitterman, head of Bremco Inc, now part of SVI Industrial, described six different styles of
Weld repair clinic particularly valuable to users with limited HRSG experience Read More »
Since virtually everyone at a cycling plant faces issues with their attemperators (Fig 1), you’ll probably want to know about a unique design retrofitted to several Duke Energy combined cycles, one that uses the existing spray ring. Key to the design is use of HP steam to provide the energy to atomize the spray water
Novel attemperator for HRSG reheater circuits eliminates legacy issues Read More »
