12.01.2008 | William Oh
The generator bearings on a wind turbine located in Oregon (Figure 1) first failed in May 2006, only 11 months after the tower was brought on-line. The company that owns and operates the wind farm replaced the bearings and slip rings, but the new bearings...
12.01.2008 | Altair Nanotechnologies
For the power engineer, delivering an instantaneous and consistent power supply can be an elusive goal. Yet without it, grid frequency regulation is impossible. Today, frequency regulation is an ancillary service bought by the hour, the day prior to...
11.01.2008 | Amadeus M. Burger, CSA Inc.
Advanced computer design tools have merged with high-definition laser camera scan data to produce integrated images that are particularly useful for outage and maintenance planning. A 3-D tool that enables a project team to perform virtual equipment removal...
11.01.2008 | Haydée Richaud-Minier, Gérard Pascal, Hervé Marchebois, and Dennis Schume
For the past 40 years, titanium has been the material of choice for condenser tubes exposed to sea and brackish water applications. That said, rising raw material costs make it important to reconcile engineering desires with budget limits in new plant...
11.01.2008 | James M. Hylko
A key maxim of the military is "train like you fight, and fight like you train." The same applies to emergency response training, which should be a part of a plant’s routine operation. Don’t risk waiting until an accident occurs to test...
11.01.2008 | Angela Neville, JD
For busy staff in the field, nothing is more frustrating than having laptop computers or smart phones crash due to lost connections when those devices lose wireless coverage. Often, important data is obliterated and workers have to waste precious time...
11.01.2008 | Richard R. King, PE
In 2005, Jersey Central Power & Light (JCP&L), a subsidiary of Akron, Ohio – based FirstEnergy Corp., initiated a project to identify protection system improvements that could be made to proactively combat wind- and lightning-related weather...
10.15.2008 | Tim Hurst, Hurst Technologies Corp.
Software ranges from shrink-wrapped products available “off the shelf” to custom corporate implementations of enterprise systems that require sessions with shrinks to keep everyone sane. Regardless of its complexity, every piece of software a...
10.15.2008 | Bruce Gans, TurboCare Inc.; Darryl A. Rosario, Structural Integrity Associates Inc.; and Jim Olson and Jerry Best, Tennessee Valley Authority
An increasing number of low-pressure steam turbines—especially at supercritical fossil units—have experienced stress corrosion cracking in the blade attachment region of their low-pressure rotors. Approaches to solving this problem range from...
10.15.2008 | Dr. Robert Peltier, PE
Entergy christened its Performance Monitoring and Diagnostic Center several years ago to leverage the expertise of its most senior operators and technicians across the company’s entire fleet of plants. The center also makes use of advanced software...
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