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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Bellefonte Nuclear Generating Station ： ウィキペディア英語版 Bellefonte Nuclear Generating Station The Bellefonte Nuclear Generating Station (shortly ''BLN'') is a partially completed nuclear power plant located in Hollywood, Alabama. A total of four reactors have been proposed over a period of 40 years, and billions of dollars have been spent, but no electricity has yet been produced. The site has sat idle for more than 20 years and some spare parts have been taken from the two incomplete units. In 2011, the Tennessee Valley Authority board of directors approved a plan to restart construction of the Bellefonte Unit 1 reactor. But the ultimate cost and timing for Bellefonte 1 will depend on work at another reactor TVA is completing - Watts Bar 2 in Tennessee. ==Units 1 and 2== The Bellefonte Nuclear Generating Station site is owned by the Tennessee Valley Authority and is located in Hollywood, Alabama. The two partially built 1,256 megawatt (MWe) pressurized water reactors on the site were made by Babcock and Wilcox and are called a 205 design due to the number of fuel assemblies in the core. These units are of the same design as WNP-1 which is also unfinished, and as the Mülheim-Kärlich A reactor in Germany that operated for three years and proved the design. Unit 1 was 88%  complete (mechanical - nuclear island) and Unit 2 was 58% complete (mechanical - nuclear island) when development was suspended in 1988 after a $6 billion investment. Subsequent asset recovery activities, along with more recent inspections of remaining equipment, resulted in BLN 1&2 now being considered approximately 55 percent and 35 percent complete (mechanical - nuclear island only) respectively.〔http://edocket.access.gpo.gov/2009/E9-19045.htm〕 Should completion of either of the units be decided upon, the experience in completing Watts Bar Unit 2 is instructive in both time to completion, and magnitude of the scope of the work. All of the remaining major equipment items delivered, installed, and not later removed, will have to be baseline reexamined for use in a design which will have to conform to standards and experience gained as a consequence of both major accidents and natural disasters that have occurred in the thirty-eight plus years since construction was initially begun. Each unit would require almost a decade to complete in amended design, detailed engineering, construction, validation, and testing, thru initial operations. The exact total cost of such an effort would also be unknown as the detailed design to meet the current "lessons learned" standards of design is not yet completed; and thus, the scale and scope of construction to initial operations (upon which the cost estimate would be based) is unknown. Although the construction permits were terminated on September 15, 2006, TVA is investigating completion of these first two units with operation projected to start Unit 1 in 2017 and Unit 2 in 2021. In August 2008 TVA asked the NRC to reinstate the construction permits as part of the restart evaluation. This request was granted by the NRC on February 9, 2009, albeit as a terminated application which required significant inspection of all systems to bring the license to the deferred stage. The status was upgraded January 14, 2010 to deferred.〔http://www.nrc.gov/reading-rm/doc-collections/news/2010/10-012.html〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bellefonte Nuclear Generating Station」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.