Is the nuclear submarine reactor nuclear fusion or nuclear fission
The nuclear submarine reactor was a nuclear fission reactor. The nuclear fission reaction released a large amount of heat energy through nuclear fission, and then used a heat carrier with a certain pressure to " carry out " the heat energy. After a series of conversion, it provided propulsion and power supply for the nuclear submarine. Read more exciting novels for free
Nuclear fission in the reactor
Take Uranium-235 as an example. When the nucleus of Uranium-235 was bombarded by external neutrons, one nucleus would absorb a neutron and split into two smaller nuclei, releasing two to three neutrons at the same time. The neutrons produced by the fission bombarded another Uranium-235 nucleus, causing new fission. If this continued, it would be a fission chain reaction, which would produce a large amount of heat. In order to achieve such a nuclear fission reaction, the reasonable structure of the reactor should include nuclear fuel, moderator, heat carrier, control facilities, and protective devices. The nuclear fuel needed to be made from uranium ore through processes such as selection, crushing, acid soaking, and concentration to produce a certain amount of uranium and a certain geometric shape of the rod. In a traditional nuclear fission reactor, in order to improve the chain fission reaction efficiency of nuclear fuel, it was necessary to decelerate the high-speed neutrons (fast neutrons) produced by fission into slower neutrons (thermal neutrons). A neutron moderator composed of lighter nuclei (such as light water, heavy water, etc.) would be added to use the hydrogen atoms to decelerate the high-speed neutrons. The heat carrier could be used to take away heat to prevent the reactor from burning down due to overheating. The heat that was extracted could turn the water nuclear reactor into steam to drive the gas turbine to generate electricity. The control facility allowed the nuclear reactor to operate according to human wishes. The protective device was because uranium and fission products were highly radioactive and could cause harm to humans. In addition to the traditional reactors that used Uranium-235 as nuclear fuel, there were also fast neutron reactors (nuclear fission reactors without neutron moderators) and thorium-based molten salt reactors (fourth-generation reactor nuclear energy systems that used thorium as nuclear fuel and composite fluorides as coolants). Their nuclear fission reaction principles were similar, but there were differences in specific fuel, efficiency, safety, and so on. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What is the moment of nuclear fission reactor activation?
From a certain video, one could see that the nuclear fission reactor lit up with a blue light the moment it was turned on. However, this was only a visual phenomenon from the video. The actual nuclear fission reactor involved complex physical processes, including the start of nuclear fission and other reactions. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
What are the characteristics of the way the reactor controls the nuclear fission speed?
Controlling the nuclear fission rate of the reactor was mainly achieved by controlling the neutron density. It had the following characteristics: - ** Control Rod Control **: - [Material characteristics: Usually made of materials with strong neutron absorption ability, such as cadmium-in-silver alloy, metal hexagon, boron-containing stainless steel, or boron-containing glass.] - ** Control method **: When it is necessary to absorb neutrons to reduce the reaction speed, it will be inserted into the nuclear reactor, such as during the reactor shut down operation. When it is necessary to increase the power, it will be lifted at the appropriate time, such as when the reactor is started. This method was mainly used to quickly adjust the power and start and stop the reactor. - Boric acid control: - ** Control principle **: Boric acid is put into cooling water. By adjusting the concentration of boric acid, the neutron density can be adjusted and controlled to achieve the purpose of controlling the nuclear reaction rate and reactor power. - ** Adjusting feature **: Able to flexibly change the concentration of Boric acid according to the reactor power requirements to regulate the nuclear fission speed. - ** Control in a mini nuclear reactor driven fighter jet **: - [Multi-function control: Not only can it control the nuclear fission reaction speed, but it can also adjust the speed and power output of the aircraft.] - ** High precision requirement **: The control system needs to have high precision to achieve precise control of the reactor and ensure the flight stability and safety of the aircraft. - ** Intelligent Control Function **: The control system also needs to be equipped with functions such as autonomous judgment, automatic adjustment, and self-repair to improve the adaptability and combat capability of the fighter jet in complex environments. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Prehistoric civilization nuclear reactor
Traces of a nuclear reactor from two billion years ago were found at the Oklo mine in Africa. This discovery triggered many speculations about the prehistoric civilization. Some people who supported the existence of prehistoric civilizations believed that nuclear reactors required a lot of manual operation to operate normally, such as enriching uranium- 235, controlling the reaction rate, adding neutron moderators, etc. Therefore, these nuclear reactors should have been built by a prehistoric civilization on ancient Earth. However, scientists had fully explained it from the perspective of natural formation. Two billion years ago, the relative abundance of Uranium- 235 in the Oklo area could reach about 3.7%(its half-life was about 704 million years, and the concentration at that time reached the standard required for nuclear reactors). The area had a special geological structure. A specific layer of sand rock contained a large number of "thin sheets" rich in Uranium minerals, forming 16 nuclear reaction zones. There were a lot of tiny gaps and cracks in the area, and underground water could enter and exit. Groundwater acted as a neutron dimmer and a cooler. These conditions satisfied the operating mechanism of the nuclear reactor under natural processes. Moreover, scientists had found evidence of natural formation in their research, so they believed that this was the work of nature and had nothing to do with prehistoric civilization.
A child creates a nuclear reactor
There were two animations related to nuclear reactors. The protagonist of the Nuclear Energy Knowledge Challenge came into contact with different experimental methods during his journey to explore the discovery of atomic energy. The Nuclear Safety Challenge introduced the safe operation of nuclear reactors and accident prevention knowledge. The animation had a system to identify reactor problems and take emergency measures, but there was no mention of children building nuclear reactors. In addition, in reality, there were teenagers who were influenced by scientific magazine reports to build nuclear reactors. For example, Jackson Oswalt of the United States was influenced by the news that a 13-year-old child in the United Kingdom had successfully built a nuclear reactor. He wanted to build a reactor at the age of 12, and the materials were ready to be obtained from the Internet. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Kursk nuclear submarine accident
Start with a nuclear fusion novel
Nuclear Fusion at the Beginning was a serial novel by CC10. This novel told the story of a man who gradually developed civilization and technology in the wilderness, from making stone tools to making ironware to making nuclear fusion. The specific plot and content could only be understood by reading the chapter of the novel.
Judgment of nuclear fusion reaction
Nuclear fusion was a form of nuclear reaction. It referred to the process of combining two lighter nuclei to form a heavier nucleus and an extremely light nucleus (or particle). In the general nuclear fusion process, two or more light atomic nuclei with high enough energy, usually detron or tritium nuclei (the nuclei of hydrogen), overcome the Coulomb repulsion between each other due to their positive charges. The distance between them was shortened to the range of the nuclear force. Under the effect of the nuclear force, heavy atomic nuclei were formed, and neutrons or neutrons were produced, releasing energy. To determine whether it was a nuclear fusion reaction, the following points could be used: 1. ** Reactants and products **: If the reaction is a light atomic nucleus (such as detron, tritium nucleus, etc.), the product is a heavier atomic nucleus (such as helium nucleus) and possibly neutrons or neutrons, and there is energy release, then it may be a nuclear fusion reaction. For example, the left side of the reaction formula was for detron and tritium, and the right side was for helium. The reaction of neutrons and energy was consistent with the characteristics of nuclear fusion. 2. ** Reaction conditions **: The nuclear fusion reaction usually needs to be carried out at extremely high temperature and pressure. Under such conditions, the nucleus and electrons will separate and form a plasma. The nucleus (mainly the helium and tritium) will overcome the Coulomb repulsion and undergo a fusion reaction due to obtaining enough energy. For example, in the interior of the sun, gravity was used to compress and heat hydrogen atoms into a high-density, high-temperature plasma state, which then carried out nuclear fusion reactions. Controlled nuclear fusion in a laboratory environment also required similar high temperature and high pressure conditions. For example, magnetic confinement fusion used a strong magnetic field to confine high-temperature plasma in a certain space to achieve a reaction. Intrinsic confinement fusion used a high-power-density pulsed laser beam or particle beam to illuminate a miniature target ball containing helium and tritium fuel, instantly generating extremely high temperature and pressure to trigger a reaction. 3. ** Law of Conservation **: A large number of experiments have shown that the nuclear fusion reaction follows the laws of charge conservation, mass conservation, energy conservation, momentum conservation, angular momentum conservation, and equality conservation. 4. Unlike chemical reactions, nuclear fusion reactions had both reagents and products, but it was not a chemical reaction. Because atoms were the smallest particles in chemical changes, the reagents and products of chemical equations were atomic molecules, not atomic nuclei. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Tell a nuclear reactor monster story.
In a world where a nuclear reactor malfunctioned, a terrifying monster came to be. The monster was a grotesque amalgamation of mutated animals. It prowled around the reactor site, causing destruction. The local military tried to stop it with their weapons, but they were no match for the monster's thick hide. Then, a young girl who was a genius in physics realized that the monster was attracted to a certain type of energy. She devised a plan to lure the monster away from populated areas and into a containment field where the energy source was placed. After much struggle, the monster was trapped, and they found a way to reverse its mutation process over time.
Long March 10 strategic nuclear submarine
The Long March 10 strategic nuclear missile submarine, number 412, was a new type of strategic nuclear submarine. It was the submarine with the largest displacement built in China and was called Type 094A in the West. It optimized the command deck's shell rudder (turtleback), removed the porthole, and made the shell rudder and the hull more closely integrated. The overall shape was streamlined, which could reduce seawater resistance, reduce noise, and improve stealth performance; The turtleback was higher and used a filled-in structure, which significantly improved the performance of noise reduction and sensing system, and made the power propulsion more powerful; It could carry 12 "Julang- 2" submarine-launched missiles with a range of up to 8000 kilometers, which could strike the whole of Europe and the United States. In terms of avionic systems, stealth performance, and weapon systems, the 094A nuclear submarine had made major breakthroughs, and its performance was not inferior to similar products in the United States and Russia. The Type 094 submarine had unlimited underwater endurance and could sustain itself for more than 70 days. The novel "Hundred Years of Spaceship" is equally exciting. Everyone is welcome to click and read it!