Chapter 1393: Everyone is just like that, do you really want to solve the problem?
Silent.
Not mentioning support or objection.
Apart from Fang Jianming and Huang Zhitao who were prepared for a long time, even the Chinese delegation did not react for a while.
Originally, the content they prepared was relatively conventional, and it was simply a part of the test report about "Oriental Super Circle", which was considered a response to ITEA's assigned tasks.
So when Peng Juexian came on stage just now, they were still worried that compared to Robert Hull's shocking moment, would such ordinary content be too unattractive, resulting in their own side's frustration in the subsequent negotiation process.
Now that's fine, they don't have to worry about this anymore.
Instead, almost no one knows what the following will be.
Kim Ki-min, who had met Peng Juexian the day before yesterday, looked shocked, with confusion and shock in his eyes, "Axi, why don't you notify such a big job?"
In fact, this is not intentionally concealed by the former, otherwise it would not be kept confidential to members of the country's delegation.
It was really not yet settled until the early morning of this day.
After receiving the theoretical explanation given by Chang Haonan, Peng Juexian had already understood the content before, but it took him several hours to understand it himself. In addition, he had been very nervous when he temporarily revised the speech.
Instead of notifying everyone temporarily after entering the venue, it is better to bring a real surprise.
Anyway, there is no need for other members to do anything today.
Anyway, several Chinese representatives couldn't help but open their mouths.
But in such a formal occasion, it is impossible to question yourself, so I had to hold it in.
The first thing I realized was the on-site meeting, and quickly switched the projector to the signal channel of the Chinese delegation.
The French "Thank you for listening" on the curtain suddenly turned into a line of bold English title.
"Model explanation and theoretical control scheme for sawtooth oscillation and plasma collapse phenomenon."
Until this time, the first representative below reacted:
"Does China think that the goals set by Academician Hull cannot be achieved?"
Realistically speaking, the QA stage has not yet entered, so no one should ask questions.
But under this situation, obviously no one cares about these details.
Including Peng Juexian himself.
"This is not...I think Academician Hull's goal can be achieved, but it does not have the value of an engineering perspective."
He said and switched PPT to the first page where there was really content.
"Please look at this plasma waveform diagram from the TEXT-U medium tokamak device at the University of Text-U at Austin."
The reason I chose a medium tokamak device is because Huaxia had purchased the TEXT-U in 2007 and then rebuilt it into a J-TEXT, thus gaining all first-hand information.
But because it has not been timed to be officially put into use, these experimental data were still published in the United States in the early years, which can avoid many unnecessary doubts.
After a brief pause for a few seconds, Peng Juexian continued:
"Although the scale is relatively small, you can compare it with the data given by Academician Hull just now."
Hundreds of eyes at the scene immediately turned to the direction of the French delegation.
Although Robert Hull, who suddenly became the focus, had a bad premonition, he was now being raised and could not refuse. He had to nod and signal the secretary next to him to also call out the waveform diagram on his PPT.
Soon, the waveforms of the two overlapped together.
It's like two sharp blades that cross into the old theory.
"Please pay attention to the frequency ratio between the circumferential magnetic field and the pole magnetic field."
Peng Juexian enlarged the coordinate axis, and the vertical coordinate originally compressed by the French instantly filled the screen:
"When the ratio between the two is close to 1.618..." "Golden division?"
The murmur of the Italian representative almost blurted out, and as a result, it reached the ears of almost everyone at the scene, which immediately triggered a shocking whisper.
Peng Juexian also knew that the other party was not intentionally interrupting, so he suppressed his smile and waved his hand: "No, the 618 behind the decimal point is just a coincidence, there are actually more digits..." He explained: "In fact, this is the critical point of spiral resonance." Peng Juexian's laser point circled on a differential equation:
"Academician Hull mentioned in his speech just now that it is magnetic reconnection that causes energy escape, but it is actually a chain reaction caused by resonance - just like the timing of pushing a swing may affect the amplitude and frequency of the swing, but in the final analysis, it will hinder the generation of swing..."
"..."
As his introduction, the sound of paper flipping and keyboard typing gradually sounded in the audience.
The most new ⊥小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小小�
This time the theoretical introduction part was unexpectedly short, and after only a few more than twenty minutes, it was approaching its end:
"So, based on the jagged tooth collapse criterion we obtained, we can find that there are two main ways to control jagged instability."
Peng Jue said this first, stopped and took a deep breath.
He didn't just want to leave time for others to understand, but he was really dizzy because of fatigue and excitement.
After a little recovery, he finally came up with the most important conclusion: "First, control the period of serrated oscillation by adjusting the magnetic shear on the q=1 side, and second, control the amplitude of serrated oscillation by changing the disturbance potential energy term of magnetofluid mechanical instability."
As soon as these words came out, there was another whisper.
"I know what you think at this time - this conclusion seems to be the same as Academician Hull's report just now, right?"
No one replied, but judging from the expressions of the listeners in the previous rows, his guess was not wrong.
"Here, please note that whether it is low-mixed wave heating or neutral beam injection, it can only simply extend the period of sawtooth oscillation, but the disturbance amplitude will still gradually increase with time, and lead to the accompanying increase of parameters such as temperature and density."
Peng Juexian's speech speed is getting faster and faster:
"In other words, the occurrence of serrated collapse cannot be solved, which not only cannot solve the problem, but will also affect the normal discharge of impurities in the plasma core. It is a method of treating the symptoms but not the root cause. Even if the controllable time of the plasma can be increased to 600 seconds, 6,000 seconds or even longer, once the high energy input is removed, the core will burst instantly, and the steady state existence of the plasma cannot be truly realized."
It was not until this time that everyone finally understood why he just evaluated that Hull's plan "has no engineering value."
At this stage, no matter who owns the tokamak device, it requires an energy input of super-power to maintain the existence of the plasma. If converted, the energy consumed will be even greater than the output energy of future fusion power generation.
Of course, with the current level of human fusion research, it can only focus on the maintenance time of plasma, far from considering energy gain and loss.
But no matter what, the ultimate goal of controlled nuclear fusion is still to provide endless energy.
Hull's method will only make ITER farther and further away from this ultimate goal...
To this day, Peng Juexian no longer keeps it in a sequel:
"So, our solution is to improve the topological structure of the magnetic field by adding a spiral field, so that the disturbance amplitude of the serrated oscillation is strictly maintained to ensure its ability to discharge impurities, and at the same time, it will completely eliminate the hidden danger of plasma core collapse in principle!"
Now, the atmosphere in the venue became subtle-
Everyone engages in controllable nuclear fusion, especially when joining ITER, it is just a monk who hits the bell every day.
No matter what method, if you can make some progress and make a difference, you will be considered a victory.
Why did you suddenly act like you really want to solve the problem?
(This chapter ends)