Power Engineer
Volume 19, Issue 6, December 2005
Volumes & issues:
Volume 19, Issue 6
December 2005
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- Source: Power Engineer, Volume 19, Issue 6, page: 1 –1
- DOI: 10.1049/pe:20050609
- Type: Article
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- Source: Power Engineer, Volume 19, Issue 6, p. 4 –7
- DOI: 10.1049/pe:20050610
- Type: Article
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- Author(s): R. Pool
- Source: Power Engineer, Volume 19, Issue 6, p. 8 –9
- DOI: 10.1049/pe:20050611
- Type: Article
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A simple wave generator is biting at the heels of existing models on cost, efficiency and reliability. - Author(s): D. Flin
- Source: Power Engineer, Volume 19, Issue 6, p. 10 –11
- DOI: 10.1049/pe:20050612
- Type: Article
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Has Europe's carbon emissions trading scheme had any real impact on the energy industry? - Author(s): M. Venables
- Source: Power Engineer, Volume 19, Issue 6, p. 12 –17
- DOI: 10.1049/pe:20050601
- Type: Article
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This paper discusses China's plans to address the threat of a burgeoning energy crisis while it attempts to become a world economic power in the 21st century. Already beset by power cuts and with an over reliance on inefficient use of coal, the booming nation is desperately juggling its options to dramatically increase its power output. At the same time, the country is looking to renewable sources to help alleviate some of the worst pollution figures in the world. For the short term, with its plans to build 30 new plants, the emphasis is on nuclear energy. The long term view, however, will see renewable generation, primarily hydroelectric, wind and solar generation becoming significant contributors. - Author(s): S. Gordon
- Source: Power Engineer, Volume 19, Issue 6, p. 18 –21
- DOI: 10.1049/pe:20050602
- Type: Article
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This paper describes a project for the construction of the first ever industrial-scale power plant to generate electricity using hydrogen manufactured from natural gas. A collaborative effort between BP, Shell and ConocoPhilips along with Scottish and Southern Energy, the project not only holds the promise of storing more than a million tons of the greenhouse gas every year but also hopes to revive the near-exhausted oilfield. While there is nothing revolutionary about the project, the real excitement lies in the fact that this is the first time so many different aspects of carbon capture and storage (CCS) are being melded in a single project on an industrial scale. The project is expected to cost almost $600 M and be operational in 2009. - Author(s): J.P. Conti
- Source: Power Engineer, Volume 19, Issue 6, p. 22 –25
- DOI: 10.1049/pe:20050603
- Type: Article
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Although electric companies are familiar with the concept of pumping small volumes of data through their power grids using low radio frequencies, the jump from these relatively primitive powerline systems to full-flavor broadband powerline communications (PLC) brings with it a range of interesting challenges to utility companies. In addition to the technical and operational issues, the lack of global standards and a number of regulatory questions further compound the already difficult situation. PLC advocates, however, insist that all these issues are now being seriously addressed and, as soon as they are addressed, the main argument in favor of PLC is all that will count. - Author(s): L. Collins
- Source: Power Engineer, Volume 19, Issue 6, p. 26 –29
- DOI: 10.1049/pe:20050604
- Type: Article
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After the discovery that magnesium diboride (MgB2) has superconducting properties, four companies have emerged worldwide to study the various applications of this type one superconductor in order to build a business. This paper describes the research at Diboride Conductors in Cambridge, England, Columbus Superconductors, based in Genoa, Italy, HyperTech Research in Columbus, Ohio, and Japan-based Hitachi. - Author(s): C. Ashmore
- Source: Power Engineer, Volume 19, Issue 6, p. 30 –35
- DOI: 10.1049/pe:20050605
- Type: Article
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A study carried out for Britain's gas and electricity regulator, Ofgem, concluded that sustained energy savings between 5 and 10% could be achieved by presenting their clear historical information on bills. Because billing data is still mostly derived from manually-read meters or from estimated consumption, focus is now on the availability of remote, automated meter reading (AMR) technology. This paper discusses the opportunities for smart metering in boosting energy efficiency and reducing carbon dioxide emissions, and identifies several reasons why the UK has been slow in changing to this metering technology for the electricity markets. - Author(s): H. Becker ; H. Schuh ; J. Brunarie
- Source: Power Engineer, Volume 19, Issue 6, p. 36 –39
- DOI: 10.1049/pe:20050606
- Type: Article
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The need for more compact, reliable batteries for the power back-up systems in both mobile switching centers and base transceiver stations has accelerated the search for cost-effective alternatives to valve regulated lead-acid (VRLA) batteries. One key contender is the lithium-ion battery, which is known for its relatively high energy density and low self-discharge, balanced against high costs. Field tests at the Vodafone base transceiver station confirmed the expected performance of the prototype Li-ion battery, namely its change and high rate discharge performance under real application conditions in a live installation. Showing no significant loss of performance during the nine-month test period, it was concluded that Li-ion batteries have the potential to offer a viable alternative to VRLA in telecoms applications. - Author(s): V. Vracar
- Source: Power Engineer, Volume 19, Issue 6, p. 40 –43
- DOI: 10.1049/pe:20050607
- Type: Article
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This paper discusses the use of insulated gate bipolar transistor (IGBT) modular platforms to promote energy savings in a range of advanced power applications. Key examples include soft-switched, high-power inverters and AC/AC matrix converters with reduced DC link capacitor bank and increased reliability to multi-level, modular and scalable high-power inverters as well as high-performance, low-cost power converter systems comprising a main high power, low-frequency converter. The platform also offers benefits to low power, high-frequency multi-functional load conditioners. - Author(s): G. Bocock
- Source: Power Engineer, Volume 19, Issue 6, p. 44 –45
- DOI: 10.1049/pe:20050608
- Type: Article
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The most significant challenges in designing high power AC transfer switch are to achieve suitably fast transfer speeds, to meet safety requirements, and to gain agency approvals for worldwide sales. Of these, achieving the required transfer speed is perhaps the most difficult. The key to achieving fast switching is both fast reaction and fast fault detection. The solution lies in setting up a microprocessor-controlled software reference, synchronized with the mains, that can examine the incoming mains voltage, taking into account amplitude, phase angle and frequency. To address the problem of the speed of reaction or system switchover, a technique for slamming is proposed using an RC circuit in the relay drive circuit. This achieves switching times of 1 to 3 ms compared with 6 to 16 ms for normal operation. - Source: Power Engineer, Volume 19, Issue 6, p. 46 –47
- DOI: 10.1049/pe:20050613
- Type: Article
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- Author(s): D. Lowenthal
- Source: Power Engineer, Volume 19, Issue 6, page: 48 –48
- DOI: 10.1049/pe:20050614
- Type: Article
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How can we protect future generations from today's nuclear waste?
Editor's letter
News
Analysis: Wave chaser
Analysis: Uncertain futures
Made in China [newly made power plants]
Carbon cure [industrial power plants]
Clear for take-off [broadband power line technology]
Bright sparks [superconductors]
Smart measures [smart metering]
Lithium looks to wireless networks [VRLA batteries]
Platform for power [modular transistor]
Daring designs [transfer switches]
Letters
Final say: The human touch
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