2009 Papers and Articles
To request a copy of any paper or article, click on the Request links below. A .pdf copy will be emailed to you.
| Analytical Techniques to Reduce Magnetic Force from High Fault Current on Rigid Bus |
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| ASCE T&S Substation Structures Conference 2009 |
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Provides insight into two methods for reducing loads on rigid bus from short-circuit induced magnetic forces - decrement factor per IEEE 605 and simplified dynamic analysis. Reviews the significant cost savings that can be realized as a result of applying these techniques. |
| Impact of Alternative Galloping Criteria on Transmission Line Design |
| ASCE T&S Substation Structures Conference 2009 |
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Provides a comparison of galloping ellipses calculated traditional methods with a more conservative design approach proposed by CIGRE. Includes several examples of the impact on structure configuration, structure weight, and foundation size. |
| Xcel Energy Riverside Repowering Project |
| Power-Gen International 2009 |
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Discusses the conversion of Riverside from coal-firing to natural gas combined-cycle operation, focusing on the new combined-cycle arrangement, steam turbine upgrades, changes to the circulating water system, plant controls, new foundation and building designs, electrical integration, and project schedule. |
| Validation of Screening Tests for Choosing a Carbon for Mercury Reduction - Comparison to Full-Scale Results |
| Power-Gen International 2009 |
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Discusses the testing program developed to determine the most cost-effect sorbent for a station retrofit with carbon injection systems. Reviews the results of the small-scale screening tests of both non-halogenated and halogenated activated carbons using the actual flue gas from the station as well as the subsequent full-scale parametric testing conducted on the selected carbon to verify the results of the screening tests. |
| Selection of the Sulfur Dioxide Control Technology for a New Coal-Fired Generating Station |
| Coal-Gen 2009 |
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Provides insight into the considerations and approach associated with sulfur dioxide control technology selection based on the process applied to a current new coal-fired generating station project. Discusses project evaluation parameters, including limited water availability, SO2 collection efficiency, and flexibility in fuel fired, and compares the advantages and disadvantages of the candidate FGDS technologies. |
| Mercury Reduction at Portland General Electric’s Boardman Station |
| Coal-Gen 2009 |
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Discusses concerns that the introduction of ACI systems and resultant carbon in the fly ash could turn this saleable byproduct into a waste product. Reports on the test plan to determine if various powdered activated carbons (PAC) could effectively remove mercury from the flue gas and still result in a fly ash stream acceptable to the utility's fly ash broker. Reports on results of full-scale tests both for mercury removal and the quality of the concretes produced from the resultant fly ash. |
| Steam Turbine Water Ingress Prevention: A Controls Perspective |
| ISA POWID 2009 Conference |
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Summarizes the key elements of steam turbine water ingress prevention design. This includes the various types of instrumentation and control strategies/implementation to monitor, control, and prevent steam turbine water ingress. |
| Construction Management of Coal Project with Multiple Contractors |
| Electric Power 2009 |
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Discusses the contracting approach for a new 385 MW pulverized coal-fired power plant and why this approach has proven to be a successful means to managing project challenges that included changing power market conditions, remote location, contractor interfaces, and construction interfaces. |
| Project Procurement in Today’s Changing Market |
| Electric Power 2009 |
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Discusses challenges faced to procure and install a baghouse and dry FGD system within the estimated costs and on schedule. Presents the use of executing projects on a multiple-contract basis to provide flexibility to react to the constantly changing marketplace. |
| Activated Carbon Injection System Experience on PRB Coal-Fired Units with Electrostatic Precipitators |
| Electric Power 2009 |
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Shares experience with activated carbon injection (ACI) systems on power plant units firing PRB coal with ash/carbon collection using existing electrostatic precipitators. Reviews design and operating issues and the solutions implemented. Many of these lessons learned are uniquely associated with injection of powdered activated carbon (PAC) upstream of an existing precipitator. |
| Steam Temperature Control |
| White Paper - Process Fundamentals 2009 |
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Captures the process fundamentals related to steam temperature control. Intended to present this foundation information, in a comprehensive way, to new engineers dealing with the process part of power station design and engineering. Authored by L&T-S&L. |