Chapter 418 It’s Not that Difficult Actually

Liquid lithium breeding tritium is not new in the comprehensive problem of controlled nuclear fusion.

The self-sustaining problem of tritium is one of the key issues. Naturally, many scientists and researchers have explored it for decades.

However, due to the strong magnetic interference of the external field coil, liquid lithium metal will have major safety hazards, so this road is a half-abandoned path.

For decades, scholars have studied how to solve the problem of liquid lithium breeding tritium. After all, compared with solid lithium breeding, liquid lithium breeding has many advantages.

But it cannot be solved. Liquid metal will generate electric current when it moves, and electric current will generate magnetic field. This is the law of electromagnetic induction.

The reason why the earth can give birth to life is largely because the core of the earth is a hot metal core composed of iron and nickel. When it rotates, it generates a very large magnetic field, intercepting the external solar wind and protecting the atmosphere, water and other substances on the surface.

It is very difficult to solve this problem.

The safest way is to find a way to transform liquid lithium into non-metal, so that it will not generate electric current and magnetic field under high temperature and flow.

This has always been the direction of the scientific community's efforts.

However, there is not much effect, because in order to suppress the induction law of lithium metal batteries, a large amount of impurities must be added into it, which will directly reduce the lithium content.

And the reduction of lithium content will naturally lead to a reduction in tritium, and this is the trouble.

It is necessary to solve the electromagnetic effect of liquid lithium metal, and it cannot reduce its tritium accumulation efficiency.

The difficulty is like the world has no perfect method, and it is not disappointing to the Tathagata and not disappointing you.

Hearing Peng Hongxi's question, Xu Chuan smiled.

He got up, dragged out a blackboard from the office, and smiled: "In fact, it is not very difficult."

"The trouble with liquid lithium multiplying tritium is that liquid metal will generate current and magnetic field. If it is suppressed, it will inevitably reduce the lithium content."

As he said, he listed rows of mathematical formulas on the blackboard.

【ΔPMHD=kρσuB2】

"According to the MHD pressure drop calculation formula, the conductivity of liquid metal (σ) is proportional to the MHD pressure drop (APMHD). Reducing the conductivity of liquid breeder is obviously the most effective method."

"But this method will reduce the production efficiency of tritium. So how to increase the proliferation rate of tritium while reducing conductivity is the most critical thing."

"I have studied materials and know some mathematics. Through the technology of liquid lithium breeding tritium, I have redesigned a set of intelligent calculation methods to improve the tritium breeding ratio of fusion reactor tritium blanket."

"The principle is based on high-order neutron perturbation theory and simulated annealing algorithm, which can quickly find the global optimal solution by automatically adjusting the geometric boundaries of the functional area of ​​the tritium blanket of the fusion reactor."

"First, the tritium breeding ratio of the entire blanket module when the kth functional area is disturbed under the first-order perturbation can be calculated; the tritium breeding ratio of the i-th tritium breeding area when the kth functional area is disturbed under the first-order perturbation can be calculated. The tritium multiplication ratio of group j"

"δtbr＝tbr(δl′1，δl′2δl′m)-tbr(δl1，δl2…δlm)"

". The multidimensional second-order analytical function of the tritium multiplication ratio of the entire blanket module with the boundary disturbance of each functional zone is derived. "

In the office, Xu Chuan listed rows of formulas on the blackboard and explained the core to Peng Hongxi at the same time.

How to solve the problem of liquid lithium multiplication of tritium has always been his thinking point, but there has been no progress.

After two academicians in the field of nuclear fission from the Nuclear Industry Group came over, they finally brought him some inspiration.

The core is taken from the molten salt reactor nuclear fission power station.

In the molten salt reactor power station, the fuel salt is the key to the molten salt reactor. It can be used as a carrier of nuclear fuel and a coolant for nuclear fission reactions. Therefore, it must be dissolved in the fluoride salt coolant to generate fluoride salt when used.

Based on this idea, Xu Chuan used the calculation model in the Sichuan-Hai Materials Research Institute to molten salt lithium metal.

Use silicon carbide, aluminum oxide, beryllium oxide, or silicon dioxide to make dispersed particles, blend them into liquid lithium lead materials, and use mathematical methods to reduce the liquid lithium lead materials while increasing the tritium multiplication ratio of the fusion reactor's tritium blanket.

Across from him, Peng Hongxi looked at the formula on the blackboard and exclaimed: "Only you can do this."

The method Xu Chuan showed him was not a very advanced or alternative method, but a deepening of the original liquid lithium multiplication method of tritium.

But for decades, no one has been able to give a perfect way, and he did it, which is also unique.

Xu Chuan smiled and said, "It's not bad actually. The predecessors have paved the way and have almost figured out the method of tritium proliferation in liquid lithium. All I can do is stand on the shoulders of giants and look forward."

Peng Hongxi shook his head and stopped chatting about this. He said, "I will arrange to verify this method as soon as possible. If the problem of tritium self-sustaining can also be solved, the hope of controlled nuclear fusion will really come."

Xu Chuan smiled and said, "Sorry to bother you, Mr. Peng. The Dawn Fusion Device may not have time to verify this method, but EAST should be able to do it."

Peng Hongxi nodded and said, "I'll arrange it right away."

On the other side, while Xu Chuan and Peng Hongxi were discussing how to solve the final tritium self-sustainment problem, in a residential area near Qixia Mountain, an Asian man who looked Chinese but had a vague sense of being different was wandering by the river.

However, he seemed to have a purpose and was specifically targeting the elderly people walking on Riverview Avenue.

"Hello, old man, I am a reporter and I want to interview you. It will be published in newspapers and TV later. What do you think?"

The Asian man caught up with an old man who was walking along Riverview Avenue to eat. He asked with what he thought was a friendly smile, and at the same time showed his 'press card'.

For him, interviewing in China is something that has proven successful time and time again.

As long as it can be published in newspapers or on TV and make them famous, many people will be happy to accept it.

The old man who was walking stopped, looked him up and down with his old eyes, and asked, seemingly deaf, "What are you picking?"

Asian man: "An interview that can be on TV!"

Old man: "What can be on TV?"

The Asian man yelled: "An interview that will make you appear on TV!"

"What kind of interview can I do?" the old man asked calmly.

The Asian man sighed. It turned out that he had encountered a deaf old ghost. He said helplessly: "Old man, please be busy. I'll leave first."

Just as he was about to leave, the old man grabbed him with such force that he couldn't break free for a while.

"It turns out it's an interview. Can it be on TV?" the old man asked curiously.

The Asian man paused and nodded quickly: "Of course. Old man, do you know what is happening on Qixia Mountain nearby?"

The old man squeaked and complained: "Who knows what they are doing? There is a thumping noise every night, and it makes my sleep uneasy."

Hearing this, the Asian man quickly asked: "Old man, do you know what the noise is? What is it like?"

The old man frowned and said, "Who cares how the sound is made? It's just a thump, a thump, a thump anyway."

The Asian man didn't continue to ask questions, and just thought that the old man was confused because of his age. After all, he had been tormented for a long time just now.

"Well, old man, you live at the foot of this mountain. Have you seen any planes, tanks, etc. here?"

Hearing this question, the old man frowned, as if thinking.

However, at this moment, two men in casual clothes quickly walked out from the side of Riverview Avenue and walked straight towards the Asian man who claimed to be a reporter.

Noticing the movement around him out of the corner of his eye, the Asian man assessed the situation and felt that there was no hope of escape, so he pretended to be calm and continued chatting with the old man.

However, the worst happened. Two strong men in plain clothes walked up to him and locked his arms.

"It hurts, let me go, what are you going to do! I'm a reporter, I have a press card!" the Asian man shouted in panic.

The two strong men ignored him, quickly found the recording device and invisible camera device from his jacket pocket, and took them away.

Watching the three people leaving, the old man walking on Jiangjing Road spat and said to himself: "You little bastard, it seems like you are not a good person at first glance, and you want to trick me into getting information from me?"

Since China launched the Qixia controllable nuclear fusion demonstration reactor project, there have been a lot more foreigners in the city of Jinling, especially near Qixia Mountain, where foreigners are often seen wandering around.

A small number of them had originally planned to come over for fun, while the majority were foreign media reporters, as well as some occasional or overseas intelligence personnel.

These days, he has interviewed and inquired about information from his old man several times, and he has also dealt with plainclothes soldiers, so today he immediately realized that this Asian who looked like a compatriot might not be a Chinese, so he pulled him The chat dragged on for a while.

Sure enough, soon, the security personnel here took him away.

For the elderly, those who can be taken away by security soldiers are pests who want to destroy the peace of the motherland.

I have to say that in terms of controllable nuclear fusion, the confidentiality work is still very good.

Although foreign intelligence agents have been groping nearby, they have not found any information.

The Qixia Mountain area is like a black hole, swallowing up all the information.

But this has also increasingly aroused the curiosity of other countries, and they have deployed or even bribed more people to learn about the progress and information here.

Even if every investment disappears without a trace, I still grit my teeth and continue.

After all, this involves technology that can change the entire world.

PS: In the past two days, I have been in average condition, and the things I wrote are a bit awkward. Originally, there were two updates today, but after reading it, I felt dissatisfied and deleted a chapter. I will check the situation tomorrow. In addition, the ignition is fast. , just these two days.