* 搜尋
* 核能資訊中心
* 中心簡介
* 相關資訊
* 瀏覽人數
今天: 22
昨天: 179
本月: 3374
總計: 551293
國際核能現況 : US project to recycle naval fuel gets Senate approval
發表人 nicenter 於 2018/6/25 11:57:46 (99 人讀取)

US project to recycle naval fuel gets Senate approval

The US Senate has approved a proposal for a USD15 million pilot programme to recycle used naval nuclear fuel

for use as fuel in advanced nuclear reactors. The proposal - an amendment to the fiscal 2019 Energy and

Water Appropriations Bill - was adopted by the full Senate by 87 votes to 9.

Low-enriched uranium (LEU) fuel used in today's nuclear power plants typically contains less than 5% of fissile

uranium-235 (U-235), but many of the advanced reactor designs currently under development will require uranium fuel

enriched to between 5% and 20% U-235, known as high-assay low-enriched uranium (HALEU) fuel. Nuclear submarines

use highly enriched uranium (HEU).

Used nuclear fuel retains much of its fissile content, and the project would aim to demonstrate the blending down of

used HEU fuel from the USA's naval programme to produce useable HALEU. Such a project could potentially reduce the

amounts of nuclear waste from the naval programme requiring disposal.

Amendment 2943 was proposed by Senators Mike Crapo and James Risch of Idaho and Senator Sheldon Whitehouse of Rhode Island.

A site at the Idaho National Laboratory (INL) has been earmarked for the construction of a NuScale small modular reactor.

The INL has also been identified as a possible site for Terrestrial Energy's Integral Molten Salt Reactor.

Current operating naval reactors have the potential to create a total of 100,000 tons of used nuclear fuel, for which disposal

will cost about USD100 billion, Crapo told the Senate on 20 June. Advanced nuclear reactors could potentially reuse this and

to reduce the overall disposal cost, he said.

"HEU repurposing, from materials like spent naval fuel, can be done using hybrid processes that use advanced dry head-end technologies

followed by material recovery, which creates the fuel for our new advanced reactors. Repurposing this spent fuel has the potential

of reducing waste that would otherwise be disposed of at taxpayer expense, and approximately 1 metric ton of HEU can create 4 useable tons

for our new reactors," Crapo told the Senate.

"By reusing spent fuel to power advanced reactors, we can supply the inputs necessary for critical research initiatives, such as those

at the INL, and provide a cost-saving and environmental service by reducing the amount of spent waste otherwise stored or cleaned up,

" Crapo said after the vote.

Risch said he was "confident" that the INL would "pioneer the next generation" of nuclear reactors. "As we look ahead, there is
bipartisan agreement that the use of clean, nuclear power should be part of our 'all-of-the-above' American energy strategy,"

There are currently no US-based facilities that can produce HALEU on a commercial scale, and the US Nuclear Energy Institute earlier

this year warned that preparations should begin now to develop a national fuel cycle infrastructure to support the operation of

the advanced reactors. "The industry and the government should work in an integrated manner to establish within the next decade

the infrastructure to produce HALEU material and fabricate HALEU fuel for the next generation of advanced reactors and for advanced LWR fuel

for the current fleet," NEI Senior Director for New Plant, SMRs and Advanced Reactors Michael Tschiltz said in February.

Researched and written
by World Nuclear News

source: http://www.world-nuclear-news.org/WR-US-project-to-recycle-naval-fuel-gets-Senate-approval-2206188.html

2018/11/19 9:34:29 - PRISM selected for US test reactor programme
2018/11/19 9:27:09 - UK HPR1000 moves to next design assessment stage
2018/11/19 9:25:07 - Orano prepares Fugen ATR fuel for reprocessing
2018/11/14 9:20:55 - 行政院107年11月8日通過核研所改行政院法人「原子能科技研究院」
2018/11/14 9:14:47 - 原能會於今(13)日接獲台電公司核二廠1號機第26次大修後再起動臨界申請
2018/11/9 9:44:29 - Toshiba decides to scrap Moorside project
2018/11/7 9:30:04 - Hurricane-hit Puerto Rico to consider nuclear power
2018/11/7 9:28:12 - Saudi Arabia lays research reactor foundation stone
2018/11/7 9:25:41 - First reactor on Russia's floating plant starts up
2018/11/7 9:21:42 - Cameco notes market improvements
2018/11/5 9:36:36 - UK, Canada sign Nuclear Cooperation Agreement
2018/11/5 9:34:12 - Idaho proposed for HALEU fuel fabrication
2018/11/5 9:32:35 - IAEA reviews long-term safety of Argentinean plant
2018/11/5 9:30:50 - Decommissioning milestone for space fuel plant
2018/11/5 9:26:17 - 除役首部曲 核一乾貯核定計畫遭新北市府認定失效 台電今再提訴願
2018/11/2 9:51:26 - Climate goal demands huge boost in Chinese nuclear
2018/11/2 9:48:15 - 核三廠預定於107年11月02~03日 期間執行11.4kV定期維護檢查,部分饋線將受影響停電,原能會持續監控電廠輻射安全
2018/11/2 9:44:35 - 核三廠2號機預定於11月4日降載例行測試,原能會持續監控電廠運轉安全
2018/11/2 9:39:26 - 今(31)日中央氣象局發布豪雨特報,原能會要求台電公司強化各核能電廠及放射性物料設施防汛作業
2018/11/2 9:32:57 - 因應中火工安意外 台電:痛定思痛 全面進行工安總體檢






30013 新竹市光復路二段101號 創新育成中心三樓309室 電話:(03)571-1808 傳真:(03)572-5461 Email: nicenter@nicenter.org.tw