* 搜尋
* 核能資訊中心
* 中心簡介
* 相關資訊
* 瀏覽人數
今天: 482
昨天: 761
本月: 5038
總計: 558891
國際核能現況 : IAEA launches challenge on materials for fusion
發表人 nicenter 於 2018/6/13 14:58:59 (63 人讀取)

The International Atomic Energy Agency (IAEA) has launched a competition to find "innovative ways to visualise, analyse and explore" simulations of different materials that can be used to build fusion reactors. Such materials would subject to extremely high temperatures and energetic particles.

The IAEA said the results of the challenge will be useful for the development of a demonstration fusion power plant. Such a plant would show that controlled nuclear fusion can generate net electrical power and mark the final step before the construction of a commercial fusion power plant. This would represent the next stage after ITER, the world's largest fusion experiment under way, which is expected to demonstrate by the late 2030s that fusion can be used to generate net energy. It is not part of ITER's mission to convert this energy into electricity.

"Harnessing commercially-viable fusion power involves serious technological challenges that are expected to take many years to solve, including protecting the wall and other components of the reactor vessel from extremely high temperatures and energetic particles," the agency said.

Christian Hill, head of the IAEA's atomic and molecular data unit, noted that obtaining a very high temperature in a reactor is one of the required conditions for fusion to take place.

"At such high temperatures - ten times higher than at the core of our Sun - matter exists only as plasma, which must be confined by a magnetic field to keep it from damaging the reactor walls," he said.

Candidate materials for use in fusion reactors include tungsten, steel and beryllium, the IAEA said.

"Since experiments on physical samples are difficult and expensive to carry out, scientists have turned to computational models to simulate the behaviour of a material," it said. "Different metals or compositions, impact energies and temperatures can be explored [using molecular dynamics] and can help with the search for an effective first wall material."

The IAEA is inviting "experts and self-taught enthusiasts" to analyse simulations of the damage that can be caused to the reactor wall by the energetic neutrons released by the fusion reaction.

Participants are requested to submit ideas that take one or more of the following into consideration: novel software for visualising the material damage represented by the simulation data files in a way that aids qualitative and quantative assessment; new software tools to rapidly and reliably identify, classify and quantify new patterns and structures of particular kinds in the data sets; or, efficient algorithms to depict and summarise the statistical distribution of atom displacements and to analyse the effect of impact energy on this distribution.

Hill said, "By participating in this challenge, both specialists and non-specialists will be helping scientists to better understand how a material responds to high-energy events and will assist the development of a future fusion reactor."

The deadline for submitting ideas is 14 July.

The winner, who will be announced on 15 August, will receive EUR5000 (USD5894) and be invited to the IAEA's headquarters in Vienna to present their ideas.

Researched and written
by World Nuclear News


2018/12/14 9:35:45 - IAEA reviews long-term safety of Armenian plant
2018/12/14 9:28:55 - Major concrete pour at Hinkley Point C
2018/12/14 9:25:47 - Indian reactor sets new world record
2018/12/14 9:23:04 - Novovoronezh unit 4 completes upgrade
2018/12/14 9:17:12 - 今(14)日4時56分花蓮縣政府西北方12.4公里規模3.5有感地震,各核能電廠皆正常運作,原能會持續監控電廠運轉安全
2018/12/12 9:32:00 - Work starts on Kursk II-2 foundation plate
2018/12/12 9:29:31 - Optimisation studies begin at Namibian uranium mine
2018/12/12 9:26:06 - South African government replaces Necsa board
2018/12/12 9:24:27 - Nigeria becomes HEU free
2018/12/12 9:21:47 - Fuqing 6 reactor pressure vessel in place
2018/12/10 9:24:45 - Fusion reactions project attracts UK funding
2018/12/10 9:22:58 - China General Nuclear ready to ramp up UK ambitions
2018/12/10 9:21:22 - Diversity key for UK nuclear workforce strategy
2018/12/10 9:19:35 - Optimisation studies begin at Namibian uranium mine
2018/12/7 10:41:45 - Nuclear important to sustainable energy mix, says UNECE report
2018/12/7 10:40:07 - First Taiwanese reactor to enter decommissioning
2018/12/7 10:31:03 - Russia completes testing of modified VVER-440 fuel
2018/12/7 10:30:00 - 核一廠1號機於107年12月6日進入除役期間,原能會將嚴格監督台電公司落實除役計畫及安全要求
2018/12/7 10:29:55 - Russia and Rwanda to cooperate in nuclear power
2018/12/7 10:20:00 - 核一廠1號機執照屆滿依法停機 待取得除役許可正式啟動除役






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