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China Civilian Nuclear Industry, Technology, Exports and Supply Chain: News & Discussions

JSCh

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海洋强国路超话【中国聚变工程实验堆关键设备实现重要突破!】 近日,@中国船舶 旗下七一二所表示,中国聚变工程实验堆(CFETR)超导储能线圈失超保护开关的一项关键设备——大电流快速真空断路器在七一二所顺利完成了直流开断试验,获得关键技术突破。​
据了解,当今世界科技界为解决人类未来能源问题开展了一项重大国际合作计划——国际热核聚变实验堆(ITER)计划,由中国、美国、俄罗斯、欧盟等七方共同参与。中国聚变工程实验堆是中国科技部基于国际热核聚变实验堆计划开展的国内专项研究,也是中国自主设计和研制并联合国际合作的重大科学工程,其建设将促使中国引领未来世界聚变能研究。该设施主要为下一代聚变堆的超导磁体和偏滤器系统提供研究和环境,保障我国聚变堆核心技术发展的先进性、安全性和可靠性,加快聚变能实际应用的进程。​
七一二所依托中压混合直流开断技术方面的长期积累和研发优势,参与承担了中国聚变工程实验堆超导储能线圈失超保护开关项目关键设备的研制,在超出设计方失超保护开关换流参数一倍的情况下完成了试验,给后续的优化和可靠运行提供了较大的设计裕度。​
在此之前,代表该领域最高技术水平的产品为国际热核聚变项目(ITER)项目大电流快速真空断路器,此次试验的成功标志着七一二所中压混合直流开断技术的研发上升了一个新的台阶,使我国在该技术领域实现重大超越,填补了国内空白。​

China Ocean Shipping Magazine
Today at 14:13

[Key equipment of China's Fusion Engineering Test Reactor has achieved an important breakthrough!]

Recently, 712 Institute under China State Shipbuilding Corp. said that a key device of the China Fusion Engineering Test Reactor (CFETR), the quench protection switch of the superconducting magnetic energy storage coil — the high-current fast vacuum circuit breaker has achieved a key technological breakthroughs and had successfully completed the DC breaking test.

It is understood that today's world science and technology community has launched a major international cooperation program to solve the future energy problem of mankind -- the International Thermonuclear Experimental Reactor (ITER) program, which is jointly participated by seven parties including China, the United States, Russia, and the European Union. The CFETR is a domestic special research project conducted by the Chinese Ministry of Science and Technology based on the ITER Program. It is also a major scientific project independently designed and developed by China and jointly with international cooperation. Its construction could promote China to lead the world in the future of fusion energy research. The facility function to provide research and environment for the superconducting magnet and divertor system of the next generation fusion reactor, guide the advancement, safety and reliability of the core technology development of China fusion reactor, and accelerates the process of practical application of fusion energy.

Relying on the long-term accumulation and R&D knowledge in medium-voltage hybrid DC breaking technology, 712 Institute participated in the development of key equipment for the superconducting magnetic energy storage coil quench protection breaker project of the CFETR. The test was completed under the condition of doubling the commutation parameters, which would provide a large design margin for subsequent optimization and reliable operation.

Prior to this, the product representing the highest level of technology in the field was the high-current fast vacuum circuit breaker of the International Thermonuclear Fusion Project (ITER) project. The success of this test marks a new level in the research and development of medium-voltage hybrid DC breaking technology by the 712 Institute, enabling our country to achieve a major leap in this technical field and fill the domestic gap.
 

JSCh

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CGTN @CGTNOfficial
China state-affiliated media

#China's first nuclear power unit using Hualong One technology, a domestically developed third-generation reactor design, was put into commercial operation on Saturday, Xinhua reported.

Image
10:52 AM · Jan 30, 2021

First nuclear unit with Hualong One reactor starts commercial operation
Source: Xinhua| 2021-01-30 11:14:21|Editor: huaxia

Photo shows the exterior of the No.5 nuclear power unit in the city of Fuqing, southeast China's Fujian Province, Nov. 26, 2020. (Xinhua)

BEIJING, Jan. 30 (Xinhua) -- China's first nuclear power unit using Hualong One, a domestically-designed third-generation nuclear reactor, has entered commercial operation, said the China National Nuclear Corporation (CNNC) Saturday.

The No. 5 unit in the city of Fuqing, east China's Fujian Province, is generating electricity for sale after a seven-day trial run, said the CNNC.

The Hualong One reactor, with all of its core components produced domestically, has a design life of 60 years and meets the strictest safety standards in the world, according to the CNNC.
 
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Daniel808

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CGTN @CGTNOfficial
China state-affiliated media

#China's first nuclear power unit using Hualong One technology, a domestically developed third-generation reactor design, was put into commercial operation on Saturday, Xinhua reported.

Image
10:52 AM · Jan 30, 2021

First nuclear unit with Hualong One reactor starts commercial operation
Source: Xinhua| 2021-01-30 11:14:21|Editor: huaxia

Photo shows the exterior of the No.5 nuclear power unit in the city of Fuqing, southeast China's Fujian Province, Nov. 26, 2020. (Xinhua)

BEIJING, Jan. 30 (Xinhua) -- China's first nuclear power unit using Hualong One, a domestically-designed third-generation nuclear reactor, has entered commercial operation, said the China National Nuclear Corporation (CNNC) Saturday.

The No. 5 unit in the city of Fuqing, east China's Fujian Province, is generating electricity for sale after a seven-day trial run, said the CNNC.

The Hualong One reactor, with all of its core components produced domestically, has a design life of 60 years and meets the strictest safety standards in the world, according to the CNNC.
Congratulations China ! :china:
Indeed, a Major Breakthrough in Nuclear Energy sector
 

JSCh

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Technological breakthrough raises nuclear fuel utilization rate: below 1% to 95%
(People's Daily Online) 13:36, June 09, 2017

Chinese scientists have made a technological breakthrough in the country's nuclear energy program. The new accelerator-driven system (ADS) is able to raise the utilization rate of uranium to 95 percent, a great leap forward from less than 1 percent using the current technology, paving way for a safer, greener nuclear future, said the Chinese Academy of Sciences (CAS) at a press conference on June 8.

The new system means that fission energy could be sustainable for roughly 10, 000 years. It’s also more environmentally friendly, as it can shorten the radioactive life of used nuclear fuel to less than 500 years, and the volume of disposed nuclear waste can be reduced to less than 4 percent of the conventional amount.

Xu Hushan, vice director of the Institute of Modern Physics under CAS, said the achievement in advanced fission energy is the result of six years of research by the institute. The disappointingly low utilization rate of nuclear fuel and its safe disposal have been key challenges for the nuclear power industry.

View attachment 402589
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25MeV连续波超导质子直线加速器
25MeV continuous wave superconducting proton linear accelerator
【喜讯!#我国强流高功率质子加速器研制再创世界纪录#
[牛哞哞]
】14日,记者从中国科学院近代物理研究所获悉,该所独立自主研制的加速器驱动次临界系统(ADS)超导直线加速器样机在国际上首次实现束流强度10毫安连续波质子束176千瓦运行指标,并于12日凌晨2:20,实现10毫安束流稳定运行。事实上,采用全超导直线加速器加速5毫安以上连续波质子束此前从未在国际上被验证或实现。​
虽临近春节,研究团队并未松懈,仍然奋战在科研一线上,解决一个又一个难题,终于在大年三十凌晨在国际上首次实现了10毫安连续波质子束加速,并在大年初一实现10毫安下的束流快速恢复和稳定运行,功率达到176千瓦,供束可用性达到90%以上,再次刷新由他们团队自己创造的连续波质子束流强度和束流功率世界纪录。(科技日报记者 陆成宽)​

Science and Technology Daily
Today at 13:33 from Weibo

[Good news! The development of our country's high intensity and high power proton accelerator sets another world record]

On the 14th, the reporter learned from the Institute of Modern Physics, Chinese Academy of Sciences that the accelerator-driven subcritical system (ADS) superconducting linac prototype independently developed by the institute has achieved the 176-kilowatt operation target for a beam intensity of 10 mA continuous wave proton beam for the first time in the world. , And at 2:20 am on the 12th, stable operation of 10 mA beam was realized. In fact, the use of an all-superconducting linear accelerator to accelerate a continuous wave proton beam above 5 mA has never been verified or realized in the world before.

Although the Spring Festival is approaching, the research team has not slackened, and is still fighting on the front line of scientific research to solve one problem after another. Finally, in the early morning of the New Year’s Eve, the 10 mA continuous wave proton beam acceleration was achieved for the first time in the world. Once the beam was quickly restored and operated stably at 10 mA, the power reached 176 kilowatts, and the beam availability reached more than 90%, which once again refreshed the world record of continuous wave proton beam intensity and beam power created by their team. (Science and Technology Daily reporter Lu Chengkuan)

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JSCh

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Chinese fast reactor completes trial operating cycle
11 August 2020

The China Experimental Fast Reactor (CEFR) completed a manual emergency shutdown test from full power on 31 July, China National Nuclear Corporation (CNNC) announced last week. The company said this marked the end of commissioning tests for the power test phase of the reactor and verified that its performance met the design requirements under stable conditions and expected transient operating conditions.


The building housing the China Experimental Fast Reactor (Image: CNNC)

CNNC said completion of the test also marks the successful completion of the first core cycle trial operation task of the CEFR, "laying a solid foundation for the subsequent commissioning phase to be transferred to the operations phase".

The sodium-cooled, pool-type fast reactor was constructed with Russian assistance at the China Institute of Atomic Energy (CIEA), near Beijing, which undertakes fundamental research on nuclear science and technology. The reactor has a thermal capacity of 65 MW and can produce 20 MW in electrical power. The CEFR was built by Russia's OKBM Afrikantov in collaboration with OKB Gidropress, NIKIET and the Kurchatov Institute.

First concrete for the CEFR was poured in May 2000 at CIAE's Beijing site. The reactor achieved first criticality in July 2010 and was connected to the grid at 40% capacity a year later. Since then, various commissioning tests on the reactor, the turbines and of the sodium pumping system have been carried out at increasing power output levels. Materials and fuel irradiation tests have also been conducted over this period. CEFR achieved its design goal of 72 hours at full power in 2014.

Following the earlier completion of low-power tests and nominal power tests, CEFR was restarted on 19 June for high-power operations. Over the subsequent 40 days of operation, a number of tests were completed, including a dynamic test of the steam turbine digital electro-hydraulic (DEH) control system, a 75% power turbine load rejection test and a cold start power-flow measurement test.

The reactor will now enter a refuelling and maintenance outage, after which operations will be restarted to carry out planned experimental research work.

Fast reactors offer the prospect of vastly more efficient use of uranium resources than in conventional power reactors, as well as the ability to burn actinides. Fast reactors have operated in various countries since the 1950s, with some producing electricity commercially.

China's fast reactor development has implemented a three-step strategy, namely going from an experimental fast reactor, to a demonstration fast reactor, to a commercial fast reactor. As China's first fast reactor, CNNC said the CEFR has "laid a solid foundation for the research and development of large-scale fast reactor power plants in China".

Based on the CEFR, a 600 MWe design - the CFR-600 - was developed by the CIEA. Construction of a demonstration unit in Xiapu County, in China's Fujian province began in December 2017. This will have a power output of 1500 MWt and 600 MWe. The reactor will use mixed-oxide (MOX) fuel with 100 GWd/t burnup, and will feature two coolant loops producing steam at 480°C. Later fuel will be metal with burnup of 100-120 GWd/t. The reactor will have active and passive shutdown systems and passive decay heat removal.

A commercial-scale unit - the CFR1000 - will have a capacity of 1000-1200 MWe. Subject to a decision to proceed, construction could start in December 2028, with operation from about 2034. That design will use metal fuel and 120-150 GWd/t burnup.

Researched and written by World Nuclear News


https://www.world-nuclear-news.org/Articles/Chinese-fast-reactor-completes-trial-operating-cyc
Chinese fast reactor begins high-power operation
19 February 2021​
The China Experimental Fast Reactor (CEFR) has been restarted and reconnected to the grid, marking its entry into its high-power operation phase. The sodium-cooled, pool-type fast reactor began a refuelling and maintenance outage at the end of July last year, having completed commissioning tests for the power test phase of the reactor, which verified that its performance had met the design requirements under stable conditions and expected transient operating conditions.
 

JSCh

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The World's First Batch of HTGR Nuclear Fuel Elements is Shipped
11 Jan 2021 by WorldEnergy

At 9 am on January 9th, the world’s first batch of high-temperature gas-cooled reactor spherical nuclear fuel elements was shipped from China Nuclear North Nuclear Fuel Element Co., Ltd. and shipped to the world’s first Shandong Rongcheng Shidaowan nuclear power plant demonstration project with independent intellectual property rights. To provide fuel power for its subsequent grid-connected power generation, providing strong support for China to move from a “nuclear power” to a “nuclear power”.


Due to its inherent safety and versatility of high-temperature thermal energy, high-temperature gas-cooled reactors are regarded internationally as the priority research and development object of the fourth-generation nuclear energy system. Spherical fuel elements are an important basis for the inherent safety of high-temperature gas-cooled reactors, and their manufacturing technology is one of the main technical challenges for the development of high-temperature gas-cooled reactors.

The supporting construction project of the national major scientific and technological project "Large-scale advanced pressurized water reactor and high-temperature gas-cooled reactor demonstration project"-China Nuclear North High-temperature gas-cooled reactor nuclear power fuel element production line is the world's first and only industrial-scale spherical fuel element production line , China has completely independent intellectual property rights. The production line is designed to produce 300,000 spherical fuel elements per year.


The number of spherical fuel elements sent to the demonstration power station is 78,480, which will be officially put into the reactor in April.

Global Times @globaltimesnews
China state-affiliated media

The world's first 200 MW high temperature gas-cooled reactor #nuclear power station is to be fueled and loaded with materials in April, and generate #electricity for commercial use this year, according to China National Nuclear Corporation (CNNC).

Image
8:50 AM · Mar 7, 2021
 

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