Chapter 552: The Last Difficulty
"I see......"
Quickly browsing the code on the screen, a sudden expression appeared on Lu Zhou's face.
With his coding skills, it may be difficult to fully understand the algorithm, but it is not a problem for him to understand the execution logic of the entire plasma control scheme from just a few key command lines.
In short, this algorithm is probably a product of machine learning.
Referring to the set of mathematical models he left behind and the set of control schemes edited by professors from the School of Software of Jinling University, the motion trajectory of the primitives in the plasma was calculated and simulated in countless experiments, and finally the phenomenological model was modified and additional parameters were set to make it as close to perfection as possible.
In the field of application, when the image-only model is developed to the extreme, it is actually no different from a concise and pure theory.
At least it doesn't make much difference.
Just like those empirical formulas in fluid mechanics, it is impossible to fully explain them with existing theories, but this does not prevent people from using them on the wings of airplanes, engines, etc.
Collecting this data and revising the original control scheme in continuous computational simulations can take years, or even decades, if this work is done by humans.
But for Xiao Ai, who is housed in the supercomputer, it can make corrections to the control scheme at the first time, and it may be enough to let the stellarite run a few times.
In this sense, the algorithm of the plasma control scheme separated from the main program of Xiao Ai seems to be a kind of AI developed from machine learning technology.
However, this kind of AI is undoubtedly much lower than Xiao Ai's.
If you think about it this way, is this thing his and Xiao Ai's child?
However, this bad thought was only fleeting.
As soon as it appeared, Lu Zhou quickly threw it behind his head, and then turned off the computer.
It always felt like if he thought about it, he couldn't look directly at the guy on the computer.
……
The plasma control scheme is over, and when the supercomputing of the demonstration reactor project is completed, the backup program will be migrated.
Early the next morning, Lu Zhou got up early and called Wang Peng to help bring a basket of soup dumplings when he came over. After eating breakfast while drinking soy milk, dipped in shredded ginger and old vinegar, he left for the STAR Research Institute.
In addition to the plasma control scheme, another main purpose of Lu Zhou's return this time is to complete the final design of the liquid lithium neutron recovery system.
Although the work of the STAR Research Institute has not stopped during the time he was on the Haizhou side, the progress of the past month or so has been no different from the previous month, at least there has been nothing that can be called a phased result.
This kind of systematic scientific research project is like a bucket, and no plank can be used to draw water if it is short.
Now that the first wall material has been solved, a series of devices from core traps to heating components are steadily advancing under the work of other research institutes, but they who are responsible for the core part of the project have not made substantial progress so far.
Even if no one pushes them, they are still under a lot of pressure.
Now that Lu Zhou has returned from Haizhou, the people in the place are relieved.
Looking at Lu Zhou, who appeared in the research institute, Sheng Xianfu had not slept a few times this month, and smiled a little haggardly.
"You're finally back, and I'm thinking that if you don't come back, I'll go look for you."
Lu Zhou: "...... Thank you very much. ”
"It's not hard," scratching some thinning hair, Sheng Xianfu sighed and said, "It's just that a few key problems can't be solved, and I want to make people's heads big." ”
Since joining the institute here, he feels that his hair is getting thinner.
Hearing this, Lu Zhou's expression was also a little embarrassed.
This technical route was proposed by him, but he himself has been busy with other topics, but he has not taken care of this side.
But this is also something that can't be helped, after all, no one expected it to be so troublesome at first. He originally thought that the plan was written in such detail, and with the cooperation of engineers from the nuclear industry group, the problem should not be very big, so he focused on LPC-1 materials.
Unexpectedly, he underestimated the difficulty of the subject.
"Let's call a meeting with the people in the office," nodded and Lu Zhou gave the order, "I'll understand the situation first." ”
"Okay, I'll go."
Nodding, Sheng Xianfu turned around and walked briskly in the direction of the office.
After ordering the meeting, Lu Zhou first returned to his office and retrieved the plan for the liquid lithium neutron recovery system, reviewed it again, and then got up and went to the No. 1 conference room of the institute.
I didn't have to wait long, and soon the rest of the house came.
Gathering researchers and engineers from the STAR Institute, Lu Zhou held a short meeting and learned about the situation from various departments.
According to the heads of several departments, the current stage of research is basically based on the idea he formulated before going to Haizhou.
In other words, the LPC-1 material on the first wall is used to penetrate and slow down the neutrons, and then the liquid-lithium circulation device absorbs the neutrons and releases tritin, and the beryllium reflective layer wrapped outside the liquid-lithium layer rebounds the incompletely reacted neutrons back.
The recovered tritin is in the form of a gas, which is recovered at the top of the unit and re-injected into the reaction chamber to participate in the reaction.
Sitting at the conference table, Professor Li Changxia, who came from Nanhua's side, said with a solemn expression: "...... The tritium trapped in the liquid lithium is well solved, and it is theoretically feasible to add a packing port to inject it into the reactor, such as separating the helium ash and handing it over to the deflector inside the reactor, or adding a separation device in front of the feed port. However, now the key is the thickness of the liquid lithium layer, we have done several sets of experiments, but the results are not very good. ”
The thickness of the liquid lithium layer is a critical issue, whether it is too thick or too thin.
Too thick will trap a large amount of tritium in the liquid lithium, reduce the recovery efficiency, and greatly increase the engineering difficulty, and may also affect the safety of the entire reactor.
If it is too thin, it will not work naturally, and it will directly affect the proliferation rate of tritin. After all, the half-life of free neutrons is only about 10.6 minutes, which means that they have to consider the decay of the neutrons themselves as well as the transmutation of neutrons with other elements.
Ideally, the neutrons are recovered with liquid lithium before they are reflected twice at the beryllium metal interface. However, it is not easy to do this.
Lu Zhou: "Did you bring the experimental data?" ”
"Here."
Sheng Xianfu nodded and immediately handed over a document.
Lu Zhou took the document and read it carefully.
As the minutes ticked by, the meeting room was quiet and only the ticking of the clock on the wall could be heard.
Lu Zhou didn't speak, and the researchers sitting at the conference table waited patiently.
Finally finished reading the information in his hand, Lu Zhou closed the file.
Just when everyone thought that the big guy would come up with an idea, his actions were beyond everyone's expectations.
"The idea is right, the data are important, but there are some methods missing, so the expected results are not achieved. You've done a great job during this time, and you haven't had much rest in the past month. ”
"That's the end of the meeting, you guys go back first, from today onwards, all departments will have two days off, and the day after tomorrow will come back to report."
Announcing the end of the meeting and the arrangements for the holiday, facing the unexpected gaze, Lu Zhou gently patted the information on the table.
"I'll take this thing back and think about it."
"In three days, I'll give you a result!"