Technological power starts with upgrading lenses

Facing Yan Hui's merciless questioning, Academician Fu's face suddenly became confused.

"So Dr. Yan is optimistic about liquid oxygen and liquid hydrogen? But the biggest problem with liquid hydrogen is not the acquisition method and cost, but the storage problem."

"Hydrogen storage requires harsh extremely low temperature conditions of minus 253 degrees. With current hydrogen storage technology, it will face at least 0.1% or even 1% evaporation per day. Therefore, large-scale hydrogen storage can easily form hydrogen clouds in the air and cause deflagration. Accident, it is not without reason that M country’s space shuttle has used liquid oxygen and liquid hydrogen for so many years, but now it is gradually phased out. "

"That only shows that their ability to solve problems is not enough." Faced with Academician Fu's rebuttal, Yan Hui showed no intention of backing down, "Solving problems when there are problems, rather than avoiding the important and taking the easy way out, is the meaning of our scientific researchers' existence, right? ?”

"you……"

"alright!"

Academician Fu was about to defend himself, but Kang Chi interrupted them when he saw that their argument was gradually deviating from the topic.

"You are both right. From Academician Fu's point of view, in order to coordinate the overall situation and increase the probability of success of the plan, we must try to choose a lower-risk, relatively mature technical route. There is no problem of avoiding the most important and taking the easy."

"But Dr. Yan is right. I also think that if the problems of hydrogen production and hydrogen storage are solved, liquid oxygen and liquid hydrogen are obviously more suitable as future fuels. At least within the near-Earth system, liquid oxygen and liquid hydrogen will have greater room for development. and potential.”

"And not only the space shuttle, but also all power tools such as ordinary airplanes and ships can use liquid hydrogen as fuel, not only can the cost of use be greatly reduced, but also zero emissions can be achieved. Therefore, sooner or later we will have to conduct research on hydrogen energy. Damn it, this is an indispensable parallel application technology with the upgrading of power technology, why not incorporate it into the Qingtian Project now..."

"Taking a step back, even if the second-generation nuclear polymerization and hydrogen storage technology is not available for a while, it will not affect the overall situation of the Qingtian Project... It is just that the fuel cost is temporarily higher."

After hearing Kang Chi's words, both of them stopped arguing.

To be honest, in non-recyclable traditional rocket launches, the cost of rocket fuel is often only about 2%, which is almost negligible. In fact, the choice of fuel is not discussed at such general technical meetings.

However, as recyclable rocket technology has gradually matured in recent years and the cost of rocket launches is about to be significantly reduced, everyone has begun to pay attention to the cost-effectiveness of fuel and green environmental protection issues.

After a morning of technical discussion, the general direction of the entire plan was basically clear, and then Kangchi began to assign tasks.

“Academician Fu’s team is responsible for the modules of the orbiter, and Dr. Yan’s team is responsible for the design and development of the primary and secondary booster modules and hydrogen storage technology. They report the research and development progress to me every week. In addition, the more difficult engines and recovery systems are taken out separately. I’ll be in charge, do you have any questions?”

"I'm fine."

"I...have no problem either!"

When Academician Fu heard that he had to be solely responsible for the core orbiter, he was actually a little scared.

After all, the amount of work and difficulty of that thing was definitely the most difficult challenge in his career.

But when he saw that Yan Hui could nod without hesitation, he still took the task.

Just kidding, he's a dignified old aerospace academician, he can't be worse than a doctor from a private company, right?

Although Academician Fu also knew in his heart that Yan Hui had been following Kang Chi for so long, he might not be as good as this rising star in many aspects...

But you can’t just lose your momentum when you come up, right?

"If there's no problem, let's do this for today."

After announcing the end of the meeting, Kang Chi asked Academician Fu to stay alone again. After everyone left, he smiled and asked him: "Academician Fu seemed to have any questions just now?"

"No."

"real?"

"Um."

"Then how long do you expect to have the overall plan for the orbiter ready?"

"This... I guess it will take about two... a year."

"It's too long." Kang Chi shook his head, "Didn't the Ministry of Science and Technology equip you with our design system? Even if the orbiter is indeed a bit complicated, with the coordination and design capabilities of this system, it shouldn't take a year... ...even two years?”

Hearing Kang Chi questioning his efficiency, Academician Fu became a little confused and immediately retorted: "Although your design system can indeed greatly improve design efficiency, the orbiter is not a toy. We have neither experience nor reference. We must After repeated verification experiments, one year is already very tight. We cannot blindly pursue speed in research and development. Otherwise, who will be responsible for defects and accidents? "

Well……

defect?

joke,

Can Kangchi still let a defective rocket launch?

If he can cheat the system, there is no word "defect" in the dictionary!

"I will be responsible!" Kang Chi said directly, "Don't worry, as long as we follow the normal process, there will be no issue of accountability. If something goes wrong, the most important thing is to find the problem and then solve it. We definitely won’t just look at the results, and we won’t be carrying people in the first place. If something goes wrong, it will just be a normal commercial experiment loss, not as serious as you think.”

Hearing what Kang Chi said, Academician Fu couldn't help but soften a little, but he still said firmly: "Actually, it's not entirely a question of who is responsible. The main reason is that he is afraid of making a joke and affecting the image of our aerospace industry. …”

After listening to Academician Fu's words, Kang Chi was stunned for a moment, and soon understood his concerns.

Old aerospace people like Academician Fu can absolutely be said to have zero tolerance for design defects of spacecraft, and the style of steady and steady progress has been implemented in the entire system since the establishment of China's aerospace.

This is actually mainly due to the humiliating history of modern times, which has led to our long-term lack of self-confidence. We think that failure will make the international community laugh, and thus look down on us even more.

Therefore, old scientists in China usually hold their breath and want to make a splash no matter what they do. They have a very low tolerance for failure.

We rarely see news about failed launches of China's aerospace, while cases of failed launches abroad are everywhere.

This is definitely not the so-called public opinion control.

After all, rockets are so big that the whole world can see them once they are launched, and they cannot be controlled at all.

The main reason for this difference is the fundamental difference in everyone's R\u0026D concepts and models.

The West has always encouraged adventure and excitement. SpaceX has been adhering to the Internet thinking of "rapid trial and error, rapid iteration". It seems like a joke to blow up rockets every now and then. Not only has everyone become accustomed to it, but they themselves are also somewhat proud of exploding rockets...

Anyway, if it explodes, it means that the test was wrong, and it can be avoided next time, which is proof of progress.

Judging from their growth rate, this model may actually have some effect.