Tower Defense Strategy - Chapter 283

The number of nuclear bombs detonated by Tuqiu in the past year has exceeded 300, and no one talked about the nuclear waste issue because of the nuclear pollution everywhere.

The reaction rate of modern nuclear bombs is no longer comparable to the technology of the world war. After the nuclear bombs of countries A and C explode, the radiation value of nuclear dust is relatively limited. As long as the isolation for a few years, the impact on adults will disappear. Of course, for a long time Living in this area, there is still a risk of genetic mutations.

　　 Relatively speaking, several other countries with nuclear weapons, affected by the development level of supercomputers, have basically no follow-up progress after the UN bans on-site nuclear tests. After a nuclear explosion, they will have a greater risk of genetic diseases if they are isolated for more than ten years.

In 　　, country R is more special, and she prefers to use hydrogen bombs.

　　 Although the hydrogen bomb is also a nuclear weapon, the fusion is indeed relatively clean. Basically, the radiation level will drop to a safe level after the explosion is completed on the same day. However, as mentioned earlier, the critical power of hydrogen bombs is an order of magnitude greater than that of fission bombs, which may cause the release of stress on the land plates and cause huge secondary disasters, which is really not popular.

　　 Pollution caused by nuclear bombs, because nuclear dust is affected by the wind in a large area and the total dose is small. Generally speaking, there will be some harm in the near future, but it will become normal after a few decades.

　　 The more serious pollution is the leakage of nuclear power plants.

　　Nuclear power safety was originally used to prevent man-made disasters and natural disasters. No one thought that one day would prevent high-intensity war damage and monster attacks.

　　 After more than a year of tossing, there are a total of 20 nuclear power plants in the world that have accidents above level 5, and three have the highest level 7 accidents, of which all the level 7 accidents are in West Central Continent.

It is not a coincidence that the level 7 accidents are concentrated in West Central Continent. This area is a developed area with high power consumption. It is also the area with the highest penetration rate of nuclear power. There are so many nuclear power plants. Monsters come ashore from any angle, and the battle may spread to nuclear power. Safety.

　　 Unlike nuclear explosions, nuclear power leakage is more harmful.

　　Look at the particle level first.

The huge energy of a nuclear explosion itself can destroy a lot of unstable elements produced in the fission process. The remaining hazardous substances are only a few kinds of radioactive materials, and the radioactive materials weighing a few kilograms or a little more are scattered in dozens. Hundreds of square kilometers, the amount of radiation after the fall of radiation dust is very limited, it may be slightly covered by the fallen leaf dust for a few years, and the radiation cannot be detected.

　　 The fuel rods used in nuclear power have a U235 content of about 20% (nuclear weapons have a purity of 95% or more), and they also contain a large amount of U238 and other synthetic materials.

　　In the course of normal use, the complex material composition will generate more kinds of radiation, the content of which is close to ten kinds.

　　Xizhongzhou Nuclear Power Plants mostly use breeder reactors. This type of reactor will actively use U238 to generate some fast-decaying radioactive materials and convert an additional small amount of U235, which can effectively increase the utilization rate of nuclear materials.

　　 The interaction of various radiations in the core will give birth to new species, which will further increase the complexity of radiation.

　　 Under normal circumstances, these messy radioactive materials will remain in the fuel rod residue, and the leakage will also be dissolved by the heavy water used to protect the reactor and used as a neutron buffer, and can be centrally disposed of.

　　 Level 7 accident refers to a large amount of radioactive material leakage accident. The only possibility to reach the standard of “large” leaks is that the reactor is out of control.

　　 There is one and only one way for the reactor to get out of control, and the heat is out of control.

　　The nuclear reactor adopts a heat exchange type to boil water. The side of the boiled water does not touch radioactive materials and heavy water, and it is a completely enclosed structure.

　　According to the technical characteristics of the age, the boiling temperature of the water in the pressure shell is 200 to 300 degrees, and the new steam power generation method of 400 to 700 degrees, the latter can withstand higher temperatures before the accident pressure failure.

　　 When the temperature in the pressure shell continues to rise, the pressure will continue to rise with the increase of steam, and the final result is an explosion.

　　 is not the kind of nuclear explosion that kids think, it’s just a high-pressure vapor explosion.

　　 The prerequisite for heat loss is often the core failure of the reactor.

　　 Similar to the drought engine described above, the nuclear power reactor is also a pile of rod-shaped fuel, which is bound by the boron compound-shaped thing like honeycomb briquette. The more the fuel rod is pulled out, the more heat it produces.

　　 When the core of the reactor is affected by external influences, continuous manual misoperation, and people simply run away, structural dislocation and handling problems cause the fuel rods to be unable or unable to be pushed back into the briquettes.

　　 At this time, the rate of heat consumption on the boiling water side is slightly reduced, which will cause heat accumulation to enter a vicious circle. The reasons are many and varied, combined with the several accidents that occurred before and after the monster crisis, they were all decelerating accidents caused by improper turbine control or vibration.

　　 The boiling water side exploded, and the next stage was the real nuclear leak.

　　Without the boiling water device, which consumes a huge amount of heat energy, the heavy pool will also be quickly heated, and the entire power plant will soon become a big steamer (at this time there should be no living people in the plant).

　　The large amount of steam produced in this stage, among which heavy water vapor will also contain super-heavy water with weak radioactivity. The steam can easily absorb radiation and produce stronger radioactivity. If it comes into contact with nuclear waste that has not been transported away, the leakage will be more serious.

　　 The core must be buried in the form of death charge with borax and other inhibitors, otherwise there is no need to deal with it later.

　　 This stage is the final window for accident disposal. By continuously pouring sea water or other water, the temperature is temporarily suppressed to the point where the protective clothing can barely bear it for disposal.

　　 There is another wrong demonstration at this stage, that is, the nuclear accident that occurred in Country J in the ten years before the monster crisis.

　　 did not send a death squad, but chose to spray water to cool the shell of the factory building. (It was later proved that the death squad made a fraud and did not enter the location of the factory core)

The original intention of spraying water on the outer shell was also to cool down, but the lack of professionals at the site caused a very serious consequence. The concrete was stimulated by the huge temperature difference between inside and outside to form an insulator (decreased thermal conductivity), further accelerating the downward trend of the accident. One stage.

　　 If the borax landfill is not completed, or the cooling water flow is insufficient, and the cooling water is interrupted for a certain period of time, the situation will shift to the hot melting stage.

　　At this stage, the equipment connected to the fuel is fused, the fuel is scattered and continues to emit heat, or is exploded by heavy steam at an earlier stage, and if there is no cooling water, they will eventually melt through the entire concrete foundation and enter the melt settlement.

　　 By the time of melting and subsidence, there is already a pool of strong radioactive magma at the core. The difference between fuel, soil and rock formation has long been indistinguishable. Any electronic equipment will burn out during the approaching process, and electronically controlled excavation equipment will also go out.

　　 This is the last stage of a seven-level nuclear accident, at which time an almost permanent strong radioactive source has been formed.

　　 Of the three Grade 7 accidents in Xizhongzhou, two of them entered the subsidence phase, and only one time was crushed by the lives of hundreds of hunk men earlier in time.

　　 After the introduction, it should be understood that the nuclear leakage of the seven-level accident is divided into two parts: radioactive steam and cooling water, and the treatment of improperly present permanent radioactive production sites.

The seriousness of nuclear power leakage ~www.mtlnovel.com~ lies in the total amount of radiation contained in its fuel for power generation, and weapon-grade explosive residues, which are not in the same order of magnitude. The total amount of radiation is often calculated in tons, and the state of melting and sedimentation. Over time, more and more radiation will be generated under the influence of the radioactive source.

　　 Radiation is very common in space. Nuclear power waste is not particularly malignant at this level. However, in order to avoid harm to our children, when considering the deployment of nuclear power to space stations and lunar surface bases, nuclear waste disposal is still considered.

　　How to deal with… temporarily use landfill.

　　 In fact, it is about no treatment.

　　 It’s not that I really don’t want to dispose of it, but that the composition of nuclear waste is too complicated, and the earth ball has not been completely separated and reused. Most of it is simply treated or not treated for landfill.

The focus is still on the nuclear waste disposal of the two space stations in the future and the Kunpeng space station. This thing is very dangerous to satellites when left in space. Waste materials are collected on the monthly table for centralized landfill.

　　 By the way, there is actually another advantage to disposing of nuclear waste on the monthly watch.

　　 The moon does not have a molten core, and the temperature below the polar surface is very low. The heat of nuclear waste can properly heat the stratum. Even if the landfill coordinates are lost due to some accident, it is easy to find again through temperature measurement.

The power generation capacity of the Dragon Ball nuclear power unit is very weak. Compared with the hundreds of gigawatts used in surface nuclear power, there is almost no nuclear waste. Therefore, transportation vehicles and other issues can be left behind and solved slowly. Dragon Ball is sent to the sky.