News on China's scientific and technological development.

donjasjit

New Member
Registered Member
China is deploying 5.5G.

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While the US regulators are still quibbling about the spectrum for 5G, China has already allocated 6GHz for both 5G and 6G.

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China's research progress is remarkable. It is likely that China will lead in 6G and the repercussions of this are many.

Now even US workers in technical fields are worried. According to survey mentioned below in article, 60% of workers with STEM background believe that China will be world leader in technology in 5 years.

If that turns out to be true then question for Biden and Gina Raimondo, how do you decouple with a a country which leads in technology. USA became an indispensable nation after world war 2, now China is striving to do the same.

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tacoburger

Junior Member
Registered Member
Yes OK and what's so great about a 4th gen reactor please? What makes it 4th gen?
There's many different types of gen 4 reactors. All they mean is that they offer some advantages compared to gen 3. This reactor has higher temperatures then a traditional PWR. Higher temperatures mean better thermal efficiently. Pebble bed fuel allows for continuous refueling instead of having to shut down the reactors for weeks at a time. It also much safer than a PWR for various reasons.
 

sunnymaxi

Major
Registered Member

New generation of domestic supercomputer "Tianhe Xingyi" released​


on December 6 that according to the Financial Associated Press, at the 2023 Supercomputing Innovation Application Conference held today, the National Supercomputing Guangzhou Center officially released the new generation of domestic supercomputing system " Tianhe Xingyi ".

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IT Home inquires that the National Supercomputing Guangzhou Center is a major scientific and technological innovation platform deployed by the country during the "Twelfth Five-Year Plan" period. With the support of the National Ministry of Science and Technology, it is jointly organized by the Guangdong Provincial People's Government, Guangzhou Municipal People's Government, National University of Defense Technology and The joint construction of Sun Yat-sen University is a major scientific and technological infrastructure that supports the country's implementation of innovation-driven strategies and serves the development of local industries. It is a major scientific research and service that Sun Yat-sen University needs to face academic frontiers, major national strategic needs, and regional economic and social development. An important support platform for national and regional economic and social development.

The National Supercomputing Guangzhou Center promotes the deep integration of high-performance computing and big data around the "Tianhe-2" supercomputer, carefully builds five major support platforms for scientific research, discipline construction, exchanges and cooperation, technological innovation, and talent training, and advocates "openness, cooperation, and collaboration". , Innovation", striving to achieve a series of landmark results and create a world-class supercomputing center with Chinese characteristics.

The "Tianhe-2" supercomputer system, the business host of the National Supercomputing Center in Guangzhou, is a landmark achievement of the National 12th Five-Year Plan 863 major project and was developed by the National University of Defense Technology. The peak computing speed of the "Tianhe-2" Phase I system reaches 1.007 petaflops, the sustained computing speed reaches 6.14 petaflops, the total memory capacity is approximately 3PB, and the total global storage capacity is approximately 19PB. "Tianhe-2"'s peak computing speed, sustained computing speed and comprehensive technical level are in an internationally leading position, which is a major progress in the development of China's supercomputing technology.

"Tianhe Xingyi" is application-centric and built using key technologies such as domestic advanced computing architecture, high-performance multi-core processors, high-speed interconnection networks, and large-scale storage . It fully meets the needs of high-performance computing, AI large model training, and large-scale storage. Data analysis and other application scenario requirements.

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@tphuang ..
 

tokenanalyst

Brigadier
Registered Member

The world's first modular high-temperature gas-cooled reactor nuclear power plant developed by Tsinghua University has been put into commercial operation.​


the world's attention once again focused on the beach coast at the southernmost tip of China's Shandong Peninsula. Here, China's national science and technology major special high-temperature gas-cooled successfully completed the 168-hour continuous operation assessment and began commercial operation, marking the completion and operation of the world's first modular high-temperature gas-cooled reactor in our country.

The high-temperature gas-cooled reactor nuclear power plant demonstration project was officially put into commercial operation. Tsinghua University Vice President Zeng Rong (third from right) witnessed it with the guests.

From this moment on, the green electricity generated through the continuous and stable operation of the dual reactors will be continuously delivered to thousands of households along the UHV lines!

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The Tsinghua University nuclear energy team bravely ventured into the "no man's land", innovatively proposed and broke through a series of key core technologies, successfully developed the best-performing nuclear fuel elements in the world, developed the production process and equipment technology system with the largest production capacity in the world, and focused on Break through major technical challenges such as high-temperature helium cooling and sealing for large reactors and high-temperature nuclear-grade system and equipment manufacturing. Engineering design and construction has accumulated a total of 50,000 drawings and 100,000 pages of documents, and developed more than 15,000 units (sets) of nuclear island equipment with high technical content and strict quality requirements. The localization rate of equipment manufacturing is as high as 93.4%, and the first unit (set) developed There are more than 2,200 pieces of equipment, and more than 660 pieces of world-first equipment... Many achievements have helped my country achieve a large number of core key technological breakthroughs from "0 to 1" in the fourth generation of advanced nuclear energy technology.

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Those who strive overcome difficulties and succeed by shouldering heavy responsibilities and persevering. From "following" in the experimental reactor stage to "leading" in the demonstration project stage, and then entering the commercial stage that can be transformed into advanced productivity, behind this is the hard work of Tsinghua Nuclear Energy Personnel for decades.

In September 2021, Wu Zongxin (left), Wang Dazhong (middle), and Zhang Zuoyi (right) were at the Shidao Bay High Temperature Gas-cooled Reactor Demonstration Project Site

During this period, the older generation of Tsinghua nuclear energy people represented by Wang Dazhong and Wu Zongxin, with their infinite love and responsibility for the motherland, resolutely aimed at "inherent safety" and remained indomitable .

Some members of the high-temperature gas-cooled reactor team of the Institute of Nuclear Research

Under their words and deeds, Zhang Zuoyi, dean of the Nuclear Research Institute of Tsinghua University and chief designer of the demonstration project, led the younger generation to work hard and persevere on the journey of independent scientific research, independent design, and independent construction. After going through countless hardships, they finally succeeded. Turn "no precedent" into "successful case". In 2021, Academician Wang Dazhong, a leader in realizing the inherent safety of reactors, won the country's highest science and technology award. In December of the same year, the Shidaowan High Temperature Gas-cooled Reactor Nuclear Power Station Demonstration Project achieved grid-connected power generation for the first time. So far, it has generated more than 350 million kWh during the commissioning process. At the same time, marked by the commercial operation of Shidaowan Nuclear Power Plant, the commercial promotion of high-temperature gas-cooled reactors has slowly begun, and new commercial high-temperature gas-cooled reactor projects have been launched in several provinces in my country.

"The modular high-temperature gas-cooled reactor can provide high-parameter industrial steam to achieve cogeneration of heat and power, and can also connect multiple modules in parallel. It will play a strategic role in industrial heating, hydrogen production and other fields." Zhang Zuoyi introduced. Relying on high-temperature gas-cooled reactor technology, Tsinghua University has carried out research on hydrogen production research and development and other industrial promotion prospects. "In my country's industrial steam application market, it has commercial competitiveness and is expected to become a major innovative industry that helps my country and the world reach carbon neutrality."

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Facing the future, high-temperature gas-cooled reactor technology will contribute more "green power" to the optimization and upgrading of the energy structure of China and even the world. Tsinghua Nuclear Energy people will continue to overcome difficulties and set sail on the journey of promoting scientific and technological innovation.

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taxiya

Brigadier
Registered Member
Yes OK and what's so great about a 4th gen reactor please? What makes it 4th gen?
4th gen reactor has better safety than previous generations.

Particularly this HTR-PM type, it has negative temperature coefficient which means that with the increase in temperature caused by a greater number of nuclear reactions, the reactor automatically reduces the number of these reactions, returning to the previous and completely safe level. In simple terms, it inherently will never run away (the vicious circle). If you design its circulation loops sufficiently, you don't need active off-site ventilation system to take away the decaying heat when shutting down the reactor. On the other hand, 3rd gen reactors must have external power supply to actively run ventilation, otherwise the core will melt like Fukushima.

Another advantage is its high thermal efficiency because it works in much higher temperature than 3rd gen. In its primary loop, hilium temperature difference is 250/750C, secondary loop steam 205/570C. AP1000's (a typical 3rd gen PWR) steam loop is 226/272C. The higher difference of the temperature, the higher thermal efficiency. This is the same reason that the other 4th gen reactor type is liquid salt reactor.
 

gelgoog

Lieutenant General
Registered Member
There is also an expectation by several researchers in the area that the high operating temperature of these pebble bed reactors might make it possible to economically split hydrogen from water using nuclear power aka "red hydrogen". This would then be used in the chemical industry. For example to make ammonia for fertilizer.
 
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