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Chapter 440: Nuclear fusion demonstration meeting, when did we have such high-end technology?(1/2)

"Flower growers need to research controllable nuclear fusion technology..."
"It's impossible to succeed even in fifty years!"
When the news spread abroad, it also attracted a large number of media reports, almost all of which were unfavorable. "Such a large-scale engineering project, even if it is officially approved for research, will most likely fail midway. No matter how much manpower is invested,
Material resources are meaningless."
"Modern research into nuclear fusion is simply impractical."
"Even Amerikan and Europe, which have more advanced technology, will not be able to start research on nuclear fusion for the time being..."
"It's probably just a slogan, and it's impossible to actually invest in research."
"..."
The international media not only made judgments, but also conducted a series of analyses. The Large Example Collider project was used for comparison.
In the past many years, China has been demonstrating large particle collider projects.
The purpose of this project is to replace the aging electron-positron collider and provide the country with the most advanced collider to conduct research in related fields.
The large particle collider project has the equipment, technology, and theory, and there will definitely be no problem in manufacturing it. The only thing that needs to be demonstrated is whether it is worth the investment.
Even such a project has not been officially launched yet.
Controllable nuclear fusion is a century-old project and is considered the main energy technology in the future, but the threshold for research is too high.
For example, Germany has demonstrated that it can manufacture a complete tokamak device, but its budget exceeds 100 billion US dollars.
After spending hundreds of billions of dollars, it does not mean that the research can be completed, but that the nuclear fusion reaction can be carried out inside the device. The results are still limited to the laboratory, rather than being put into the application field.
Naturally, this kind of project cannot be approved.
The reason why the research on controllable nuclear fusion is not optimistic is that there are too many technical difficulties to be solved.
The "Times" of Eagle Country summarized several technical problems that are difficult to overcome in response to hot public opinion issues. The first is the difficulty in ignition.
Every ignition of nuclear fusion requires the creation of a high-temperature and high-pressure environment.
It is too difficult to create a high-pressure environment. Generally, it is replaced by a high-temperature environment, which requires creating an environment of at least 100 million degrees Celsius.
The second point is that computer simulations are not accurate.
This is a math problem.
All research on controllable nuclear fusion cannot avoid plasma, and problems related to plasma, including instability, turbulence, and the basic equations that control various elusive behaviors of plasma, can only be approximated through simulation calculations.
In fact, it is just like Newton's law that governs the motion of three bodies, the NS equation that governs the motion of fluids, and the Boltzmann equation that governs the motion of a large number of molecules.
It is very difficult to solve these partial differential equations, and most of them can only find approximate solutions.
There is also the matter of materials.
The reason why nuclear fusion can be called unlimited energy is because the deuterium in seawater is almost "infinite" to humans.
But the problem is, it's too difficult to use just 'deuterium'.
At a temperature of one hundred million degrees, the reaction cross section of deuterium-deuterium is nearly two orders of magnitude lower than that of deuterium-tritium. When the temperature rises to one billion degrees, the bremsstrahlung radiation will be greatly enhanced. If you want to achieve output
Larger than the input it becomes extremely difficult.
If 'tritium' is used, the problem is also obvious.
Tritium is radioactive and almost does not exist naturally in nature. Human production capacity is extremely limited, and the resources of lithium used for tritium multiplication are also limited.
Of course, the biggest difficulty is indispensable, "How to make the output greater than the input?"
From an input perspective, the power of radio frequency waves, neutral beams, and lasers used to heat plasma is smaller or even much smaller than the electrical power consumed to generate them.
From an output perspective, the efficiency of converting neutron energy into usable thermal energy is limited, and the efficiency of thermal power generation itself is not high.
etc.
There are many difficulties that need to be overcome in the research of nuclear fusion.
When the news came out, almost no one at home or abroad was optimistic that the nuclear fusion project could actually be launched.
Such research cannot even pass the argument.
But in fact, domestic nuclear fusion research still has a foundation, and many scholars support the launch of project demonstrations.
The tokamak device researched and manufactured by Tang Jianjun solved the problem of perfect annular magnetic confinement.
In addition, the circulator m device manufactured by the Southwest Research Institute of Nuclear Industry, which is called an ‘artificial sun’, also successfully achieved ‘discharge’.
Although all the problems of nuclear fusion technology have not been solved, China has mastered the design, construction and operation technology of large-scale tokamak devices.
These are the basics.

Public opinion at home and abroad is not optimistic about nuclear fusion research.
Most people think that 'rumors are just rumors', and they are just rumors. Even if they are willing to do research, it is not easy to pass the argument.
This kind of super-large research project cannot be decided by one person. It requires the support of many institutions and scholars to carry out it. The first step is to conduct technical demonstration. The purpose is to discuss the problems that may be encountered in the research, whether there are solutions and follow-up research.
Issues such as division of labor.
If it cannot pass technical demonstration, that is, there are no reliable solutions to some problems, the project will not be started at all.
Some people don't see it that way.
For example, professors at Xihai University who are familiar with Wang Hao.
They also know that there are many problems in nuclear fusion research, some of which cannot be solved at the technical level.
However, in comparison, they are more willing to believe Wang Hao.
The nuclear fusion research project is undoubtedly related to Wang Hao. Since it is a project that Wang Hao participates in and leads, any technical difficulties seem to be no problem.
Some people react very quickly.
For example, Zhang Zhiqiang.
After Wang Hao returned to Xihai City from the capital, he did not rush to work. Instead, he accompanied Su Yingxue to rest at home for a few days.
Then he returned to Xihai University.
When he entered the office of the Mason Mathematics Laboratory, he had just sat down to read the information when he saw Zhang Zhiqiang walking in carrying a big box.
This chapter is not over yet, please click on the next page to continue reading! Wang Hao stood up and glanced at it, and said with confusion on his face, "Lego?"
"yes."
Zhang Zhiqiang put the Lego toys aside and said with a smile, "Isn't my sister-in-law about to give birth? I'll give you a gift in advance to congratulate you!"
"..."
Wang Hao looked at Zhang Zhiqiang with a strange expression. It was okay to give the child a small gift, but the problem was... the child was not born yet!
Lego?
This kind of toy is not suitable for newborn babies to play with.
In addition, Zhang Zhiqiang will take the initiative to give gifts?
Zhang Zhiqiang immediately revealed his true purpose. He said with a smile, "Wang Hao, we are best friends, right? For a project as big as nuclear fusion, you have to think of me..."
"Not to mention other high-end technologies, it's okay to participate in a project to build a simulation system."
Wang Hao shook his head helplessly, "This project is not certain yet. Besides, you took the back door..." Before he could finish his words, Zhu Ping and Luo Dayong pushed the door open and came in.
Zhu Ping's face was full of enthusiasm.
She came to Wang Hao's side and hugged his arm. Zeng said, "Wang Hao, if the nuclear fusion project can really be launched, you have to think of us..."
"I'll forget it."
"Dayong is also interested in joining the project, joining the math group or the calculation group."
Wang Hao turned his head and looked at Luo Dayong, almost writing the words "You don't care" on his face, but Luo Dayong turned a blind eye and gave him a look that said, "It doesn't matter who takes advantage."
I feel helpless now.
Wang Hao felt that he was being taken advantage of, so he quickly pulled out his arm, coughed lightly and said, "You don't have to do this."
"I'll talk to you directly."
To be continued...
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