logo
* 搜尋
* 核能資訊中心
* 中心簡介
* 相關資訊
* 瀏覽人數
今天: 826
昨天: 21999
本月: 373023
總計: 1165232
國際核能現況 : Russia completes testing of modified VVER-440 fuel
發表人 nicenter 於 2018/12/7 10:31:03 (37 人讀取)

Russia completes testing of modified VVER-440 fuel


OKB Gidropress, a subsidiary of Russian state nuclear corporation Rosatom, has completed "longevity testing" of fuel assembly models with an optimised hydro-uranium ratio for VVER-440 reactors at the Paks and Loviisa nuclear power plants in Hungary and Finland, respectively.




The modified fuel for use at Paks and Loviisa (Image: Rosatom)

Rosatom's nuclear fuel manufacturer subsidiary TVEL said longevity testing is one of the most essential milestones since its results demonstrate the behaviour of structural materials in conditions similar to those inside the reactor core. The behaviour of the fuel assembly models was studied for 1500 hours in a coolant flow within parameters "as close as possible" to reactor conditions in terms of consumption, temperature, pressure and pressure pulsations, it added.


The new modification of second-generation VVER-440 nuclear fuel enables an increase in the coolant volume inside the reactor core and optimisation of the hydro-uranium ratio, which would have a positive impact on both the technical and economic performance of the power unit, TVEL said.


Alexander Ugryumov, vice president for research and development at TVEL, said the new fuel for the Hungarian and Finnish plants is based on a "unified solution" that would however allow TVEL to create an "exclusive final product" to meet each customer's own fuel cycle strategy and other individual requirements.


"Our technical solution with higher uranium mass enables us and our customer either to make nuclear plant operation more economically efficient by reducing the amount of fuel assemblies, or to lower the level of uranium enrichment," he said.


TVEL signed an engineering services contract with MVM Paks Ltd at the end of last year and an addendum with Fortum Power and Heat Oy early this year. After the full testing cycle, batch production and licensing of the nuclear fuel will start, with first deliveries of the newly modified fuel assemblies expected to begin in 2021/2022, TVEL said.


Researched and written by World Nuclear News



source: http://www.world-nuclear-news.org/Articles/Russia-completes-testing-of-modified-VVER-440-fuel



其他新聞
2019/2/18 10:18:09 - NRC seeks input on legacy uranium cleanup
2019/2/18 10:14:08 - BP forecasts nuclear growth to 3400 TWh by 2040
2019/2/18 10:11:32 - Melted fuel photographed at Fukushima
2019/2/18 10:09:53 - Search for UK repository site resumes
2019/2/15 13:56:22 - NRC terminates US MOX plant authorisation
2019/2/15 13:54:09 - Foratom highlights role of nuclear in meeting EU's target
2019/2/15 13:45:43 - Genkai 2 to be decommissioned
2019/2/15 13:39:49 - US nuclear industry seeks presidential support
2019/2/15 13:21:15 - 低放(蘭嶼)貯存場今日(108年2月14日)因突發電力線路問題造成停電,預計今日維修完畢,原能會持續監控貯存場輻射安全。
2019/2/13 10:28:11 - Clean energy ecosystem proposed for USA

 線上期刊目錄

 友善連結

單位類

行政院原子能委員會
原能會輻務小站臉書
放射性物料管理局
核能研究所
國立清華大學工程與系統科學系
國立清華大學生醫工程與環境科學系
中華民國核能學會
財團法人核能科技協進會

新聞類


30013 新竹市光復路二段101號 北育成三樓309室 電話:(03)571-1808 傳真:(03)572-5461 Email: nicenter[@]nicenter.org.tw