Chapter 432 Dawn

With the breakthrough of the plasma control system, the Jinwu project has overcome many obstacles and the most core difficulties, and is nearing completion, with gratifying progress.

Wu Tong received progress reports one by one. Part of the reserves of superconducting materials had been prepared, the site for the first wall material had been selected, the equipment was in place, adjustments had been made, and the production had officially begun. The water-cooled divertor was the section that Wu Tong was going to personally work on.

However, at the first group discussion meeting, Academician Wan had good research results in this field, so this part of the separation research and development was handed over to Academician Wan to lead the team to overcome.

After returning from the southwest, Academician He took over the supervision and follow-up work of Academician Wan, allowing Academician Wan to free up his energy to personally lead the team and conduct in-depth research and development in this area. At present, good news has also been received. Initial progress in research and development has made a breakthrough. It is expected that a divertor will be installed inside the reactor. The initial simple drawings have been produced and sent to Wu Tong!

"Mr. Wu, this is a new design based on the Tomasco water cooling device that we modified and redesigned! EAST, the Eastern Ring, can generate ITER-type long-pulse H-mode plasma with a divertor heat load exceeding 10 MWm-2 under steady-state conditions by gradually increasing the H&CD power.

Therefore, graphite PFC with a heat removal capacity of 2 MWm-2 cannot meet the physical requirements.

In addition, ITER's PFC has changed from carbon/beryllium (C/Be) to an all-metal wall with a tungsten (W) divertor target. In order to study the performance of all-metal wall plasma, we used an all-tungsten divertor at EAST, which has a heat flux handling capacity of up to 10 MWm-2. Theoretically and in simulation experiments, the data performance is still good, and there is still potential for further exploration, which we are studying carefully! "

Whenever Academician Wan opens his mouth, he reports on complex data parameters. He is talking to Mr. Wu, not to his superiors, so he has no restrictions and only reports the core content. Mr. Wu is the core soul of their project, and these are all basic reserve knowledge for Mr. Wu, so there is no need to worry that Mr. Wu won't understand!

"Similar materials, structures and technologies were used for EAST in order to provide valuable experience for ITER before its operation. ITER-grade tungsten was used for the PFC, but the combination of tungsten and CuCrZr was difficult due to the mismatch in thermal expansion coefficient and Young's modulus.

After several experiments, we finally prepared the tungsten modular PFC in two steps: first, the tungsten monomer module was coated and connected with the pure copper interlayer by hot isostatic pressing (HIP); then, the tungsten monomer module was welded to the CuCrZr tube by hot radial pressure welding (HRP). The pure copper tube and the tungsten monomer module were sealed and welded by brazing and electron beam welding in a vacuum environment, and then the HIP process was performed...”

Academician Wan told Wu Tong about their journey in the water-cooled divertor with gestures. He said, "ITER is precious, so his old friend Dongfanghuan is the test product. To be honest, he was quite indignant and suppressed his anger. But he had no choice. The situation did not allow him to be willful!

But, hehe... now it's different, they have President Wu, and their stellarator device has seen the dawn of light. Those obstacles that have blocked the world's progress have been transformed into real breakthroughs in President Wu's hands, laying the foundation for their solid and stable steps in the field of controlled nuclear fusion!

Academician Wan could not help but feel happy and excited just thinking about it! With this state of mind, his research and development seemed to be going more smoothly. He was really surprised to have made initial progress so quickly, which made him very happy!

"The bonding quality of tungsten and copper is good, and the bonding strength is greater than 150 MPa. The results of ultrasonic non-destructive testing (NDL) show that the bonding of tungsten blocks and copper blocks meets the technical requirements. Fatigue resistance tests and overheating tolerance tests have shown very good potential!"

Hehe, this technology, this time they will use it for their Golden Crow first, and they can just send it away casually to the international community! They have the Golden Crow, so they won’t be greedy for the pitiful and exquisite technology of the international community! So what if they cross the river and destroy the bridge? They just treat them as suckers and just greedily ask for endless funds!

"Combining tungsten and copper? This is an interesting idea. Academician Wan, please allow me two days to derive it!" Wu Tong listened carefully to the parameter data reported by Academician Wan. In his hand was the breakthrough data prepared by the team led by Academician Wan. It can be said that what was condensed in it was the essence of the country's persistent progress in controlled nuclear fusion over the past two or three decades.

It was because of the core leader like Academician Wan that they were able to take over this technology so perfectly and transfer it to the further research and development of the stellarator device. Even with her authority, what she could understand about these core data was not as clear and thorough as the knowledge of Academician Wan, who was a master of database experience.

With Academician Wan's detailed summary of ideas and experience, she was confident that she could come up with an optimization plan in a short period of time. It just so happened that she had some time to spare and could focus her attention on it.

"That's what I've been waiting for, Mr. Wu. I'll wait for good news from Mr. Wu!" Academician Wan smiled with satisfaction and left the information to Wu Tong. Ever since he knew about Wu Tong's unique talent in optimization, he had been thinking about this good thing. Their research and development in this field has reached a ceiling, and there is no better way to break through it for the time being.

He wanted Mr. Wu to give them new R&D perspectives. This was his idea after he learned that Wu Tong started the R&D of the WS-15S aircraft engine from the optimization. Therefore, when Academician He came back from the southwest, he handed over the work to Mr. He and led the team to fully invest in R&D, transferring the divertor device on the Dongfang Ring, which was still perfect, to the specifications and parameters that could be used in the Jinwu Project.

"Thank you for your high regard, Academician Wan. I will try my best!" Wu Tong laughed. She was not the all-powerful Doraemon with an all-powerful pocket. Before the results were fully revealed, Wu Tong could not guarantee anything. "Everything still depends on the results!"

The final result is the most reliable. It is clear at a glance whether it can be used and whether it is successful or not!

Of course, Wu Tong is quite confident that this plan can be optimized, otherwise, he would not give a specific waiting time. This is already a rare promise made by Wu Tong.

"Haha... I absolutely believe in Mr. Wu!" Academician Wan shouted and left with a smile and expectation.

After seeing Academician Wan off, Wu Tong returned to his office and took out a piece of draft paper. A string of derivation formulas and lines of them blossomed like flowers on the paper. Wu Tong's brainstorming was transformed into mathematics, materials and engineering language, and expressed in these lines of derivation formulas. A new breakthrough was right in front of him!