So how did Hong Tao deal with it? His original intention was not to advocate this approach, but his reason told him that it was normal to do so. There are still three levels of members in a group, let alone the world.

So he also asked the presidents of other continental alliances how they used their rights, and then revised and revised it, and also worked out the rules framework for the Asian region. Based on different levels of contribution, different levels of information were provided to Asian survivor groups.

What is contribution, of course, is the surrender of survival experience. For example, if you discover a trick for growing certain vegetables, well, tell me, and I will submit it to the alliance headquarters. After approval by the presidents of each continent, the contribution can be calculated and

Get the corresponding points.

The higher the points, the more survival information summarized by the alliance will be obtained. The more each continent contributes, the more information the president of this continent will receive from the alliance.

The more information the survivor group gets, the more beneficial it will be to its own development. This thing seems to be an exchange network, and what is exchanged is not material, but knowledge and experience.

Is there any benefit? There must be. After it is put into operation, it can further stimulate everyone's enthusiasm, give full play to the spirit of the three stooges, and use collective efforts to replace the shortcomings of each company's own efforts to make the development speed more even.

Faster.

This time, it was after Hong Tao received a notice from the alliance headquarters that he thought of issuing a warning to survivor groups throughout Asia, especially domestic ones, to prevent them from making the same mistake again.

The content of the notice is very simple and very sad. A survivor group in California, USA, sent a final message to say goodbye to all survivors three days ago. They had to evacuate their base in downtown Los Angeles and find ways to survive the zombies wandering around.

Cut a bloody path through the streets and move north or east.

They had no idea whether the transfer could be successful, but they had to take action because an explosion occurred at the Devil's Valley Nuclear Power Plant dozens of kilometers away from downtown Los Angeles, sending a huge plume of white steam rising into the sky.

This message was sent free of charge by the alliance headquarters, and the presidents of all continental alliances were asked to forward it unconditionally as much as possible. It has only one purpose, to remind and call on all survivors to stay away from nuclear power plants and various nuclear facilities as soon as possible, the further away the better. Because

No one is currently sure how far this contamination will spread or to what extent.

Of course, Hong Tao forwarded the notice as soon as possible, checked the list one by one to confirm that all registered survivor groups in Asia had responded, and then began to think about how to make reasonable suggestions to the domestic survivor groups.

However, you have to look for relevant information before making suggestions. You cannot just talk about such a serious matter, and you need to have some data to support it.

Without the Internet, it is not so convenient to find information. Hong Tao went to three bookstores before reluctantly gathering some evidence, including several maps of the distribution of nuclear power plants across the country in the past two years.

You won’t know if you don’t look at it, but you will be shocked when you look at it! As of the year before last, not counting those under construction, there were a total of 16 nuclear power plants that had been built and put into operation in China, covering all coastal provinces except Hebei.

Hongyanhe in Liaoning, Haiyang and Shidaowan in Shandong, Tianwan in Jiangsu, Qinshan, Fangjiashan, Sanmen in Zhejiang, Ningde and Fuqing in Fujian, Daya Bay in Guangdong, Lingao, Taishan, Yangjiang, Fangchenggang in Guangxi

, Changjiang, Hainan Island.

So will there be a leak in the nuclear power plant? According to the analysis of two people who have worked in related industries in the Russian and Brazilian survivor groups, it is 100% inevitable.

Nuclear reactors are generally divided into swimming pool type and shell type. The former is mainly used for testing, while the latter is a nuclear power plant. This type of reactor requires the use of a pump to continuously pump light water (purified water) into the pressure shell container to cool the reactor core.

, and at the same time use the generated steam to drive the steam turbine to generate electricity.

Finally, it returns to the condenser and is cooled by ordinary water or seawater, waiting to be pumped into the pressure shell again. This cycle is a closed loop, and the light water will not come into contact with the cooling water, so there will be no leakage.

Once an external power outage occurs, the electric pump stops working, and light water cannot be recycled, the temperature of the reactor will increase sharply, eventually causing the core to melt, burn through the pressure shell, and then explode in various chemical reactions, including steam.

In order to prevent this phenomenon, designers have thought of many ways. For example, once the external power supply is stopped, the backup power supply will be started immediately to continue supplying power to the water pump, and then the diesel generator set will be started to maintain light water circulation for cooling.

At the same time, the control rods in the reactor will automatically fall down, preventing the fuel rods and neutron rods from continuing to react. After this set of combined punches is successfully completed, the reactor will basically be able to shut down the cold reactor.

However, the energy reserves of diesel generators and backup power supplies are limited. If the power supply cannot be restored for a long time, no one will add oil to the generator, or a mechanical failure occurs due to long-term operation, the waste heat of the fuel rods will not be able to be dissipated.

It accumulates in the pressure shell and eventually becomes a loosing melt pile.

In fact, this issue was also taken into consideration when designing third-generation reactors. Designers used the principle of gravity to keep the cooling water circulating, or simply submerged the pressure shell directly. As long as the evaporation amount can be ensured to replenish water, the reactor core will not melt.

But there will definitely be a nuclear leak, which is a strategy of sacrificing troops and preserving commanders.

As for whether second-generation reactors have added more safety facilities to ensure that they can shut down cold reactors, the situation in each country is different. However, no reactor can be said to be able to shut down 100% of the reactors when left unattended for a long time.

Success. Sometimes what is feasible in theory does not mean that it is feasible in practice. Many unexpected factors may affect the results.

This steam explosion at the Devil's Valley nuclear power plant in California is an example. A large amount of hydrogen was produced in the pressure vessel due to chemical reactions. In the end, it did not ignite and explode, but burst the pressure vessel like a balloon being continuously inflated.

So to what extent will a leak or explosion in a nuclear power plant affect human life? There are different opinions on this, and the two survivors and insiders can't give an accurate answer.

They just cited a relatively famous example, Chernobyl. The isolation range at that time was 30 kilometers, and no one could live in this area. Afterwards, the pollution range was 100 kilometers, and people could live within this range, but many

Agricultural products cannot be exported.

However, you can already visit the vicinity of the nuclear power plant. Plants are growing very well, and there are animals living there. The radiation values ​​in most places tend to be normal. Of course, the reactor core is still buried deep inside. If the covering is opened, the amount of radiation will be

Still very big.

Although the nuclear fuel concentration of a nuclear power plant is dozens of times lower than that of a nuclear weapon, the amount cannot be sustained. If hundreds of tons of fuel rods really melt, the instantaneous radiation dose may not be that high, and the sustainable time will definitely be longer than that of a nuclear explosion.

Anyway, the closer you are to these facilities, the more dangerous it is. Who knows if they are really shut down. In fact, even if the cold reactor is really shut down, there is no guarantee that leaks will never happen. How many years? More than ten years?

?Decades? It will always leak anyway...

In this case, Hong Tao definitely didn't want the few remaining survivors to suffer the radiation test again. He suggested evacuating coastal cities as soon as possible for this purpose, and he made it clear to them.

As for why we should choose a new base in a big city in the mainland, and even encourage others to come to the capital. It is really not to take advantage of the situation to strengthen our own strength, but to think of another question. Since nuclear power plants are not safe, will nuclear bombs also be safe?

Is there any possibility of leakage?

I have also consulted the two industry insiders on this issue, but they are second-hand, have only been exposed to commercial nuclear facilities, and do not know much about military ones. A rough saying is that both atomic bombs and hydrogen bombs have a shelf life, usually 20 years.

about.

After the shelf life has passed, it must be destroyed or extended, but either way requires people to operate it. If no one handles it in time, leakage is certain, but we don’t know how long it will take.
Chapter completed!