How important is nuclear fusion ?
Since the last century, various countries have devoted themselves to the research on nuclear fusion. How important is
?
Wind energy is important! Solar energy is also very important! But it far exceeds wind energy, solar energy and other energy sources. To a certain extent, nuclear fusion can be regarded as the "holy grail" of the power industry. is clean, cheap, safe, and has no limit.
of the China Institute of Engineering Physics Academician Peng Xianjue said " fusion ignition is a jewel in the crown of science and technology in the world today", , but it is too difficult to achieve fusion ignition.
In other words, the difficulty of this technology lies in nuclear fusion ignition. Only the energy generated by the nuclear fission explosion can meet the premise of nuclear fusion reaction.
. Just recently, Chinese scientists said:
China has about 6 years to go before nuclear fusion power generation, and the country has begun to build the world's largest pulse driver, and it is expected to generate electricity around 2028.
can produce a current of 50 million amperes, and 's strength is 2.5 times that of the US "Z machine ".
"Z machine" is a device placed in Sandia National Laboratory in New Mexico, USA. It is believed to be an answer to the problem of world energy shortage.
It can generate 3.5 billion kW of high temperatures or 290 terawatts of electricity - 80 times the total global power generation, mainly used to study thermonuclear reactions.
What does this mean? Can
fundamentally solve the problem of the energy crisis?
As early as the beginning of this year, my country's full-superconducting tokamak nuclear fusion experimental device achieved a long pulse high parameter of 1056 seconds for plasma running , once again breaking the world record and reaching a global leading level.
, and now it has ushered in such a huge surprise. The ancients never thought that they could even land on the moon and "create a sun". This kind of thing was never dared to think about before, but now they are realizing it one by one.
Although it is "hard to go up to the blue sky" to create a sun, what about it? It is not impossible to implement.
By then, China will make the latest progress in the world in the field of nuclear power generation . Moreover, as a few countries with fusion technology, it will bring an important and important driving role that cannot be ignored to national construction and national life.
In fact, "Z machine" is a high-energy pulse transmitter, and what my country plans to build is a complete machine that can produce thermonuclear energy.
can be used for commercial power generation. Specifically, it is a hybrid nuclear energy reactor containing the structure of fusion and fission reactor, called Z-FFR fusion reactor.
What is Z-FFR fusion heap?
It is considered to be a nuclear energy fusion and fission integrated reactor created by in my country.
Two of the important and key technologies are originality— inertial constrained fusion target and subcritical energy reactor.
Z-FFR, mainly fission energy release, fusion only accounts for about 5% of the total power, greatly reduces the requirements for fusion as an energy application.
For fission reactors, due to the addition of high-energy fusion neutrons, through clever design, their strengths can be further developed, and even their shortcomings can be improved and even removed, making them a high-quality energy source.
Z-FFR mainly contains 3 parts:
Z-pinning driver, fusion target and explosion chamber, and subcritical energy reactor.
The so-called Z-pinning means that when current flows through the cylindrical sleeve conductor, an angular magnetic field will be generated. This magnetic field acts on the conductor carrier , which will generate the Lorentz force pointing to the central axis of the column, that is, pressure, and will lead to a self-pinning effect.
Here, Academician Peng Xianjue said:
"When the current reaches the order of tens of megaamps, the magnetic pressure generated is very huge, reaching more than one million atmospheric pressure, driving the sleeve plasma to the centrifugal implosion at a high speed, and the speed can reach hundreds of kilometers per second, which can create good conditions for the target pill to achieve fusion.The advantage of using Z-pin drive to achieve fusion is that the driver technology is relatively simple, low cost, sufficient energy and high conversion efficiency. "
and said: 2025 is the key technology research stage. We hope to build a drive of about 50 megaamps to verify fusion, and strive to conduct industrial application demonstrations around 2035.
What does it mean for a country to have nuclear fusion?
Nuclear fusion can generate huge energy, and can even be described by "inexhaustible and inexhaustible" .
is like the sun's light, The reason why the sun can burn for 10 billion years , the use of nuclear fusion.
From this we can see that mastering nuclear fusion technology will have a great impact on the development of human society and the progress of human civilization!
Not only that, compared with nuclear fission, nuclear fusion produces very little radiation, so there is no need to worry about the problem of nuclear waste .
The whole world is facing an energy crisis, and the main reason is that people are overly dependent on fossil energy.
Therefore, developing new energy is crucial to humans.
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