Archive: Nuclear

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Fermi 2 Power Plant, Newport, Michigan

Detroit Edison teamed with Washington Group International to complete a first-of-its-kind nuclear retrofit project: replacing two moisture separator reheaters during a single 35-day outage with a perfect safety record. POWER recognizes this significant accomplishment by naming Fermi 2 Power Plant a 2007 Top Plant.

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Comanche Peak Steam Electric Station, Glen Rose, Texas

A Luminant-Bechtel team completed replacement of four steam generators and the reactor vessel head—plus almost 200 other work packages—in a short, 55-day outage at Comanche Peak Unit 1. Matching or exceeding this schedule will become the goal for those who follow.

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Browns Ferry Nuclear Power Plant, Athens, Alabama

TVA’s 1,155-MW Browns Ferry Unit 1 returned to service on May 22 after sitting idle since 1985, when all three units were shut down to address management and operational concerns. Units 2 and 3 returned to service in 1991 and 1995, respectively, after extensive upgrades to controls, electrical systems, pumps, motors, and more. The return of Unit 1 began in 2002 with a five-year $1.8 billion restart plan to make all three units essentially identical, and that goal was accomplished in style. Welcome back, Unit 1.

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Focus on O&M (November 2007)

The NERC auditors are coming / Winning encore for on-line pH monitoring / Using baloons as temporary barriers / How data logging can cut power bills

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Global Monitor (November 2007)

NRG applies for first COL / TVA green-lights Watts Bar 2 / Southern Co. and Florida muni launch IGCC project / UK approves wave energy "hub" / New Jersey-New York HV system launched / Membrane strips CO2 from methane faster / POWER digest

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Accurately measure the dynamic response of pressure instruments

How do you know if a pressure transmitter is giving poor results? Unless the transmitter actually fails, most operators won’t notice a very slow loss in accuracy or response time. Fortunately, the noise analysis technique can identify such changes before they cause a problem. The technique has been used to effectively measure the dynamic response of nuclear power plant pressure sensors and their associated sensing lines. It also can be applied to any plant that relies on accurate instrumentation for control and monitoring plant performance.

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Do the math

The eyes of Texas—and the rest of the world—are upon NRG Energy after its September application for licenses for two new reactors at South Texas Project (see Global Monitor). The filing was the first of its kind in nearly three decades and the first of up to 30 like it expected over the next few […]

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Defined scope, experienced team essential to nuclear I&C upgrade projects

Over the past few years, U.S. nuclear power plants have begun replacing their obsolete analog control systems with digital control systems. Many of these projects have been completed successfully, yielding a tidy return on investment in the form of increased generation. However, some have encountered difficulties, which resulted in cost overruns and schedule delays. This minority of projects may have eroded the industry’s confidence in digital upgrade projects, but a well-run project is still one of your best options for squeezing the last drop of performance out of your plant.

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Global Monitor (September 2007)

Constellation files partial COL / IAEA scrutinizes shaken Japanese nuke / Wave energy of the future? / New GE plant reigns in Spain / Solar house competition heats up / Oxygen-blown IGCC, at micro-scale / Turning corncobs into ethanol / Court blocks gas attack on coal project / New advanced energy initiatives / POWER digest

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Nuclear plants: Something old, something new

The recent restart of Tennessee Valley Authority’s (TVA’s) Brown’s Ferry Unit 1 following a five-year renovation brings to 104 the number of nuclear plants operating in the U.S. Their 100 gigawatts of capacity represent about 20% of the nation’s electricity supply. If American electricity demand doubles by 2030 (as the U.S. Energy Information Administration predicts), […]