Chapter 419: Actually, it's not that difficult
Liquid lithium breeds tritin, which is nothing new in the comprehensive puzzle of controlled nuclear fusion.
The tritium self-sustaining problem is one of the key issues, and it has been explored by many scientists and researchers for decades.
However, due to the strong magnetic interference of liquid lithium metal in the field coil, there will be major safety hazards, and this road is a semi-abandoned trail.
For decades, it is not without scholars that scholars have studied how to solve the trouble of liquid lithium proliferation of tritin, after all, compared with solid-state lithium proliferation, liquid lithium proliferation has many advantages.
But it can't be solved, liquid metal will produce an electric current when it moves, and the current will produce a magnetic field, which is the law of electromagnetic induction.
A large part of the reason why life can be born on the earth is that the core of the earth is a hot metal core composed of iron and nickel, which generates an extremely large magnetic field during rotation, intercepts the external solar wind, and protects the atmosphere, water and other materials on the surface.
It is very difficult to solve this trouble.
The safest way to do this is to find a way to convert liquid lithium into a non-metal, so that it does not generate electric current and magnetic fields at high temperatures and flows.
This has always been the direction that the scientific community has been working towards.
However, it did not have much effect, because to suppress the induction law of lithium metal batteries, it was necessary to add a large number of impurities into it, which would directly reduce the lithium content.
The reduction of lithium content will naturally lead to a decrease in tritium, and this is where the trouble lies.
It is necessary to solve the electromagnetic effect of liquid lithium metal, but also not to reduce its tritium increase efficiency.
The difficulty is like the unparalleled law in the world, and it lives up to the truth.
Hearing Peng Hongxi's question, Xu Chuan smiled.
got up, dragged a blackboard out of the office, and said with a smile: "Actually, it's not that difficult." ”
"The trouble with liquid lithium to multiply tritin is that the liquid metal generates an electric current and a magnetic field, and if it is suppressed, it will inevitably reduce the lithium content."
As he spoke, he laid out lines and rows of mathematical formulas on the blackboard.
【ΔPMHD=kρσuB2】
"According to the formula for calculating the MHD pressure drop, the conductivity (σ) of the liquid metal is proportional to the magnitude of the MHD pressure drop (APMHD), and reducing the conductivity of the liquid proliferator is obviously the most effective method."
"But this way will reduce the efficiency of tritium production. So how to increase the proliferation rate of tritium while reducing the conductivity is the most critical thing. ”
"I have studied materials and understood some mathematics, and through the technology of liquid lithium breeder tritin, I have redesigned a set of intelligent calculation methods to improve the tritium cladding tritium breed ratio of fusion reactors."
"The principle is based on the theory of high-order neutron perturbation and the simulated annealing algorithm, which can quickly find the global optimal scheme by automatically adjusting the geometric boundary of the tritium-producing cladding functional area of the fusion reactor."
"Firstly, the tritium proliferation ratio of the entire cladding module can be calculated when the k-th functional region is disturbed under the first-order perturbation; The tritium proliferation ratio of group j of the ith tritium proliferation region when the kth functional region is disturbed under first-order perturbation"
“δtbr=tbr(δl′1,δl′2δl′m)-tbr(δl1,δl2… δlm)”
Derive the multi-dimensional second-order analytical function of the tritium breed ratio of the whole cladding module as a function of the boundary perturbation of each functional area."
In the office, Xu Chuan listed the next line of calculations on the blackboard, and simultaneously explained the core to Peng Hongxi.
How to solve the problem of liquid lithium multiplication tritin has always been a point of his thinking, 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.
Its core is taken from a molten salt reactor nuclear fission power station.
In molten salt reactor power stations, fuel salts are the key to molten salt reactors, which can be used as both a carrier of nuclear fuel and a coolant for nuclear fission reactions, so they are dissolved in fluoride salt coolant to produce fluoride salts when used.
Based on this idea, Xu Chuan used a computational model in the Chuanhai Materials Research Institute to molten salt lithium metal.
Silicon carbide, aluminum oxide, beryllium oxide, or silicon dioxide and other materials are used to manufacture dispersed particles, which are integrated into liquid lithium-lead materials, and at the same time, the liquid lithium-lead materials are reversed and reduced, and the tritium-clad tritium breeding ratio of fusion reactors is increased by mathematical methods.
On the other side, Peng Hongxi looked at the equation on the blackboard and sighed: "You can do this way." ”
The method that Xu Chuan showed him was not a very advanced or alternative method, but it was just a deepening of the original liquid lithium method of multiplying tritin.
But for decades, no one has been able to give a perfect path, and he has done it, which can be regarded as unique.
Xu Chuan smiled and said: "Actually, it's okay, the predecessors paved the way, and the method of liquid lithium proliferating tritin has been almost explored, all I can do is stand on the shoulders of giants and look forward." ”
Peng Hongxi shook his head, didn't continue to chat on this, and said: "I will verify this method as soon as possible, if the tritium self-sustaining problem can also be solved, the hope of controlled nuclear fusion will really arrive." ”
Xu Chuan said with a smile: "Trouble Elder Peng, regarding the verification of this method, the Daybreak Fusion Device may not be able to spare time, but it should be possible to do it on the EAST side." ”
Peng Hongxi nodded and said, "I'll arrange it." ”
On the other side, while Xu Chuan and Peng Hongxi were discussing the solution to the final tritium self-sustaining problem, a man of Asian descent who looked like a Chinese but had a faint sense of something different was wandering by the river in a residential community near Qixia Mountain.
However, he seems to have a purpose, specifically towards the elderly people who are walking along Riverview Avenue.
"Hello old man, I'm a reporter, I want to do an interview with you, and I will log in to the newspaper and TV later, what do you think?"
The Asian man caught up with an elderly man who was walking along Riverview Avenue and asked with a smile that he thought was kind, while showing his 'press card'.
For him, interviewing in China is a tried-and-true point.
As long as they say that they can be in the newspaper or on TV, they can make them famous, and many people will be happy to accept it.
The old man who was taking a walk stopped, looked him up and down with old eyes, and asked as if he had some ears behind his ears: "What do you pick?" ”
Asian man: "I can be interviewed on TV!" ”
Old man: "What can you do on TV?" ”
The Asian man shouted, "Interview on TV!" ”
"What kind of interview can I go on?" The old man asked calmly.
The Asian man sighed, it turned out that he had met an old ghost behind his ears, and said helplessly: "Old man, you are busy, I will go first." ”
As soon as he was about to leave, the old man grabbed him, and his hand was still quite strong, and he couldn't break free for a while.
"It's an interview, can you be on TV?" The old man asked curiously.
The Asian man paused, nodded quickly, and said, "Of course." Old man, do you know what is going on on Qixia Mountain near here? ”
The old man snorted and complained, "Who knows what they are doing, every night it is noisy, and it is unstable to sleep." ”
Hearing this, the Asian man quickly asked, "Do you know what the old man's noise is?" How is it? ”
The old man frowned and said, "Who cares how the sound is made, anyway, it's dong dong." ”
The Asian man didn't continue to ask, just thought that the old man was old and confused, after all, he had tossed him half a way just now.
"That old man, you live at the foot of this mountain, have you seen planes, tanks, or anything here?"
Hearing this, the old man frowned, as if he was thinking.
However, at this moment, two men in civilian clothes quickly walked out from the side of Riverview Avenue and walked straight to the Asian man who claimed to be a reporter.
Out of the corner of his eye, he noticed the movement around him, and the Asian man assessed the situation, and after feeling that there was no hope of escaping, he pretended to be calm and continued to chat with the old man.
However, the bad situation came, and two strong men in plainclothes walked up directly and locked his arms straight back.
"It hurts, let go of me, what are you going to do! I'm a journalist, I have a press card! The Asian man shouted in a panic.
The two brawny men ignored him, quickly found the recording device and the stealth camera device from his jacket pocket, and took it away.
Looking at the three people who left, the old man who was walking on Jiangjing Road spat and said to himself: "Little rabbit cub, you are not a good person at first glance, and you want to lie to me to find out the news from me?" ”
Since the launch of the Qixia Controlled Nuclear Fusion Demonstration Reactor project in China, there have been many 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 to visit, and most of them were foreign media reporters, as well as some occasional or foreign intelligence officers.
These days, there have been several interviews with his old man to find out the news, and he has also dealt with those plainclothes soldiers, so today he realized for the first time that this Asian who looked like a compatriot might not be a Chinese, so he dragged him to chat and delay for a while.
Sure enough, it was quickly taken away by the security personnel who were on the side.
For the elderly, those who can be taken away by the security soldiers are pests who want to destroy the peace of the motherland.
I have to say that in terms of controlled nuclear fusion, the work of secrecy is still very good.
Although foreign intelligence agents have been groping around, they have not found any information.
The Qixia Mountain area is like a black hole, engulfing all the information.
But this has also aroused the curiosity of other countries, and they have even bought more people to find out the progress and information here.
Even if every investment disappears without a trace, he still grits his teeth and continues.
After all, it's about technology that can change the whole world.
PS:The last two days are in general state.,Something written out is a bit of a stretch.,Originally, there were two more today.,But after reading it myself, I felt dissatisfied and deleted a chapter.,Let's take a look at the situation tomorrow.,Another ignition is fast.,It's been these two days.。