The hottest Hefei artificial small sun has been up

2022-08-02
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The upgrading of Hefei artificial "little sun" has passed the national acceptance. The upgraded version of the largest "microwave oven"

has passed the national acceptance. The "little sun", which took more than three years and was equipped with the country's largest "microwave oven" and a huge "spray gun" system, finally passed the acceptance, and the temperature has reached 50million degrees Celsius, half of the design goal. The upgraded version of Hefei artificial small sun has passed the national acceptance. Yesterday morning, the national development and Reform Commission held the completion acceptance meeting for the auxiliary heating system project of the Tokamak nuclear fusion experimental device, a major national scientific and technological infrastructure, in Hefei. The little sun, which took more than three years and was equipped with the country's largest microwave oven and a giant spray gun system, finally passed the acceptance, and the temperature has reached 50million degrees Celsius, half of the design goal

the small sun upgrade has passed the national acceptance

first, we need to understand a definition. Although the standard name of this device, the auxiliary heating system of the Tokamak nuclear fusion experimental device, may have made you dizzy, you must no longer be unfamiliar with the small sun

the device known as the EAST Tokamak nuclear fusion experiment is the world's first all superconducting tokamak device designed and built by China, and passed the national acceptance in March2007, commonly known as little sun

then, why should we study the little sun and what does it do

to solve the problem of energy use. A R & D personnel of East auxiliary heating project team told that the power generation principle of nuclear power plants around the world is based on nuclear fission

however, the resource reserves of thorium th, 233U uranium, 235U uranium, 239Pu plutonium and other raw materials required for nuclear fission are limited. In addition, the waste generated after use is also difficult to deal with, and even advanced technology will more or less leave radiation. The researcher said that in order to find alternative new energy, researchers began to study nuclear fusion

the raw materials of deuterium and tritium required for nuclear fusion can be directly taken from seawater. From this point of view, the sources are almost inexhaustible. Therefore, many countries in the world now focus on nuclear fusion. The researcher said that the small sun is the product of nuclear fusion

at present, the United States, France and Japan have good technologies, but we are still in the forefront. The researchers said that the artificial small sun mainly releases energy by simulating the nuclear reactions on the sun and other stars. The goal is to increase the temperature by more than 100million degrees

equipment 1: the largest microwave oven in China

this auxiliary heating is the second phase project of East large scientific device. As one of the top 15 scientific engineering projects of the national development and Reform Commission, it was approved in july2008 and started construction in november2011. It is expected to build 4 MW neutral beam heating and 4 MW low hybrid current drive system

to put it bluntly, the project that passed the acceptance this time is to help our little sun. While helping it continue to raise the electronic temperature and increase the auxiliary heating power, it can also be sustainable and controllable

but how do you send energy to the little sun

first of all, there must be a super large microwave oven. How big is it? Equivalent to 12000 household microwave ovens with significantly improved ride quality

the so-called auxiliary heating system is mainly composed of medium beam heating system and low hybrid current drive system. To put it bluntly, it is a huge microwave oven with a large spray gun. Liufukun, deputy chief engineer of auxiliary heating system of Tokamak nuclear fusion experimental device, described that the low hybrid current drive system manufactured in Hefei can be regarded as the largest microwave oven in China

on the spot, this is an excellent bridging material. The whole microwave system is composed of 24 parallel red microwave tubes. Liufukun said that the power of these 24 microwave tubes reaches 6MW, while the effective power of ordinary household microwave ovens does not exceed 500W, that is, 12000 household microwave ovens simultaneously transfuse blood for the small sun

static bending strength now they are equivalent to kindling the small sun. Liufukun said

equipment 2: the center of the giant fixture is 150mm higher than the center of the swing frame

the spray gun delivers fuel to the small sun. How can a microwave oven do? Huchundong, another deputy chief engineer of the project, said that in addition to the microwave system (low hybrid wave system), there is also a key neutral beam heating system, which is like a giant spray gun

the spray gun heats the small sun by emitting a megawatt particle beam. Huchundong said that through the continuous heating of the spray gun, the small sun can produce more nuclear fusion

at present, it has reached 50million degrees Celsius, half of the predetermined goal has been achieved. Huchundong said

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