Weather fusion

Controlled nuclear fusion technology is a highly anticipated future energy mode for all mankind. It uses the principle of sun burning to release heat, so this experimental device is often called "artificial sun". The Institute of Plasma Physics, Hefei Institute of Material Science, Chinese Academy of Sciences has a fully superconducting tokamak nuclear fusion experimental device called "artificial sun". 202 1, 65438+On the evening of February 30th, this device created the best in the world.

Before, we often heard how many seconds of computing experiments were created by artificial solar devices in a certain country, usually a few seconds or dozens of seconds, and some were even less than 1 second. The artificial solar device of Hefei Institute of Physics created a running time of 1056 seconds, which is 17.6 minutes. The artificial solar device broke through the "thousand seconds" and created the world tokamak device, which is the first time in the world.

Superconducting tokamak device is an annular container which uses magnetic confinement and vacuum insulation to realize controlled nuclear fusion. Its working principle is that a small amount of hydrogen isotope deuterium or tritium is added to the vacuum chamber of the device, and then it is turned into plasma at high density and high temperature by physical methods, and then a fusion reaction occurs, which will generate powerful energy. Superconducting tokamak has been recognized by the scientific community as the most effective way to explore and solve the engineering and physical problems of future steady-state fusion reactors.

It has been 10 years since the Institute of Plasma Physics, Hefei Institute of Material Science, China Academy of Sciences built the fully superconducting tokamak nuclear fusion experimental device. It is about 8 meters in diameter and weighs more than 400 tons. It is all the medium and large tokamak devices built in the world.

From 2065438 to February 2006, the longest plasma discharge was realized in the physics experiment of Hefei full superconducting tokamak, with an electron temperature of 50 million℃. 2018165438+1October 12, EAST realized the plasma discharge at1100,000℃; On may 28th, 20021year, the fully superconducting tokamak nuclear fusion experimental device created a repeatable high temperature of1.200 million℃, which lasted for 1.0 1 second. At the same time, the continuous operation of1.600 million℃ for 20 seconds has been realized, and now the high temperature of 7000 million℃ has been realized.

Gong Xianzu, the general manager of the experimental operation of Hefei EAST Facility, also said: "This time, it is of great experimental significance to maintain the long pulse high-parameter plasma with an electron temperature of nearly 70 million degrees Celsius for 1056 seconds and the injection energy reaches 1.73 Ji Jiao. The realization of thousands of second plasma operation has laid a solid scientific and experimental foundation for building a stable fusion engineering reactor in the future. "

The power generation technology of controlled nuclear fusion is different from the nuclear power generation technology used now. Today's nuclear power plants use controllable nuclear fission technology, which is inseparable from heavy elements such as uranium and plutonium with strong radioactivity. Once a nuclear leak occurs, it will cause nuclear pollution that is difficult to clean up. Therefore, many nuclear power countries in the world have restricted the application of nuclear power generation technology and closed many nuclear power plants. However, this situation does not exist in the controlled nuclear fusion technology. It has no heavy element pollution, and the high temperature and high pressure environment disappears immediately after the nuclear fusion device is turned off, and the nuclear reaction will stop immediately, so it is very safe.

Hefei, a fully superconducting tokamak device, is just a nuclear fusion experimental reactor. China's next-generation "artificial sun"-China Fusion Engineering Experimental Reactor has completed the engineering design and started construction. This is a larger nuclear fusion reactor. According to the news of "Golden Investment Network" on September 29th, 20021year, it is said that the comprehensive research facility of the key system of its fusion reactor host is under construction, and it is planned to build the experimental nuclear fusion reactor in 2035. Large-scale scientific experiments on practical power generation will begin. By 2050, the fusion engineering experimental reactor will be successfully tested and a large-scale fusion commercial demonstration reactor will be built, and the controlled nuclear fusion power generation technology will be mastered initially. By then, mankind will no longer need to worry about energy problems.

References:

"World Wide Web" 202 1 year 65438+February 3 1 day article "1056 seconds! The artificial sun in China runs for thousands of seconds.

On September 29th, 20021year, the article "China's nuclear fusion research has set a world record, and" artificial sun "is expected to supply power in 10".

It is no longer a dream to ask the "air reservoir" for water to increase precipitation and set up a new meteorological department in China.

The largest "reservoir" in the universe has been discovered, and the water volume is 140 trillion times that of the earth's oceans. how do you know

The fourth phase of lunar exploration was approved. Chang 'e VII first flew to the moon with an aircraft, and Chang 'e VI and Chang 'e VIII both went to the south pole of the moon.

The American satellite flew close to the China Space Station twice, so we avoided it urgently and called for "guards with knives" to go to heaven.