Chapter 917 Difficulties Are Temporary

Lin Yinghao's words immediately attracted everyone's attention.

Huang Mingshan also has some data on electromagnetic technology, and everyone calculated it on the blackboard.

Zhang Hao looked at it and frowned a little.

In fact, Dayang Group's technology has developed to the present, and it already has a huge volume. It is also difficult for Zhang Hao to guide in detail now.

As far as these formulas, data, etc. are concerned, Zhang Hao can only barely get a rough idea.

Mathematics, physics, etc. in this world are still different from the previous world after all. Different civilizations have formed different habits and symbols. In particular, mathematics in this world itself is inextricably linked with practice, gossip, images and numbers.

The technology developed from such mathematics is very different from the world it once was.

It can only be said that Zhang Hao gave a certain amount of guidance and beginning, and Zhang Hao will not interfere much in the subsequent development. Especially now that he has absorbed the relevant knowledge from advanced civilization textbooks, it is difficult for Zhang Hao to control the scientific system of Dayang Group.

The only thing Zhang Hao can do is point to a general direction. For example, space exploration, rocket technology, electromagnetic rail technology, etc. But more specifically, Zhang Hao is no longer able to intervene.

Everyone calculates and discusses. Then he contacted Ge Dong by phone to obtain relevant data.

Scientific research data cannot be exchanged casually. But that depends on who. Huang Mingshan, Ge Dong, Lin Yinghao, Leng Fengxue and others basically do not have such problems.

In about an hour, Lin Yinghao completed preliminary and detailed calculations.

"Mr. Zhang, after preliminary calculations, electromagnetic guide rail ejection is feasible. In this way, we can compress the volume and weight of the rocket to less than 10 tons. But in this way, the rocket's own fuel can only provide a speed of 5 kilometers per second. extra speed.

But for the rocket to gain enough speed to go into space, the electromagnetic rail needs to provide up to a total amount of energy equivalent to the initial speed of 20.35 kilometers per second. "

"No, the orbiting speed is 25.3 kilometers per second, the surface speed of the planet's rotation is 1.68 kilometers per second, and the rocket provides a speed of 5 kilometers per second. The guide rail only needs to provide a speed of 18.62 kilometers per second."

"But if we send the rocket to an altitude of 1,500 kilometers, it will consume part of its potential energy. Calculated according to the free fall, calculated according to the gravity of the planet, the free fall speed can reach 1.73 kilometers per second."

Zhang Hao rubbed his brows, "Okay. How difficult is it for the rail gun to provide a speed of 20.35 kilometers per second?"

"It's a bit big. But compared to the previous way of simply launching rockets, there is always hope for a breakthrough.

To lift a 10-ton rocket to 10.35 kilometers per second requires about 300 million units of electricity. This does not include the loss of the conversion process.

Our current most excellent thermal power generating set has an hourly power of 800,000 units of electricity per hour. That's 222 units of electricity per second.

According to our current preliminary calculation of electromagnetic technology, considering the rocket's bearing capacity, the maximum acceleration of the rocket can reach 280 meters per square second.

To reach the speed of 20.35 kilometers per second, take an integer, it will take 73 seconds.

Output 300 million units of electricity in 73 seconds, an average of 4.11 million units per second. Calculated according to the data of one unit 222, 18,500 generator sets are needed.

According to the calculation of a generator set covering an area of ​​18×35 square meters, it needs 11.65 square kilometers of land to put it down.

The above figures are all theoretical values. The actual power conversion rate is about 80%, and it is even more impossible for generator sets to be stacked together like building blocks.

In reality, we need to build a super power plant of about 30 square kilometers, requiring at least 23,100 units. All power plants are in peak condition and execute all orders without error.

Finally, it will be possible to send the rocket into space.

During this period, even a small fluctuation in the number will ruin all efforts. "

Zhang Hao opened his mouth when he heard these numbers.

I thought of the difficulty of launching a rocket, but I didn't expect it to be this difficult. This is simply an impossible task!

The total number of units in all thermal power plants of Dayang Group is only about 3,000. In this way, almost all of Dayang Group's industrial needs have been supported.

However, Lin Yinghao didn't finish his sentence, "Mr. Zhang, what I just talked about was the issue of energy. There is also the more important issue of the launch rail.

The launch rail requires about 746 kilometers. The 746 kilometers of rails must be flawless and flawless. There must be no dust, no air, or the slightest turbulence during this process.

In addition, the fixed rocket also needs a vehicle, and the vehicle must also accelerate synchronously. The actual situation...maybe even more complicated. "

"Didn't you just say that the guide rail only needs 12 kilometers?"

"That is calculated according to the level of the weapon. But the rocket is relatively fragile, and the bearing capacity needs to be considered. Also, every time the guide rail is shortened by half, the required power unit will increase by four times. Shortening the guide rail is definitely not a good idea."

Zhang Hao closed his eyes, thought for a moment and suddenly said: "When the guide rail first starts to accelerate, there is no need to use electromagnetic technology at all. You can use steam ejection or explosives to complete the acceleration. You can even use external engines and so on.

Wait until the speed reaches the chemical limit, and then activate the electromagnetic rail acceleration.

Is the 10-ton rocket a bit big? It can be investigated whether the weight can be further reduced.

By the way, aren't we studying the use of nuclear energy now? Maybe try to study the technology of nuclear power plants etc.

As for the problem of guide rail accuracy, let's study it slowly in the future.

Now I finally have a direction. "

After all, Zhang Hao hurriedly ended the conversation. No way, he was also shocked by these numbers.

What are astronomical figures? What is more terrifying than astronomical figures is "exploring astronomical figures"!

23,100 generating units, or Dayang Group's latest thermal power generation technology, do you know how much it will cost? Zhang Hao still remembers that a thermal power plant project was approved years ago, with 12 units of 800,000 units and a total budget of 300 million. And that doesn't include the power grid and so on.

Really want to connect 23,100 generating units in parallel, just the cost of the power grid project, etc., is definitely an astronomical figure.

So this terrifying number directly made Zhang Hao make a judgment: just use electromagnetic rail technology to launch rockets, just think about it, don't take it seriously!

It's scary.

Also, 746 kilometers of rails? Previously, the scrap rate of weapons-grade guide rails was as high as 80%, and the precision was required to reach the level of 10 microns, that is, 0.01 millimeters.

If 746 kilometers of guide rails are made according to this requirement, Dayang Group will go bankrupt. In fact, the space launch requirements will only be higher!

However, the difficulties are only temporary, and now they finally have a direction.

The previous research was not done in vain, but accumulated a wealth of science and technology and knowledge, especially the full understanding of gravity, air resistance, potential energy, planetary rotation, orbit, atmosphere, formation, etc.

Especially in terms of formation and storage space technology, no one thought that when the speed reached 16.8 times the speed of sound, that is, the speed of 8.4 kilometers per second, there would be instability.

But you can understand it if you think about it. The space formation method itself has its own space resistance. When the speed reaches a certain level, the relationship between matter and space will become more and more close, and problems will inevitably arise.

Of course, the scientists of Dayang Group believe that advanced civilization must have a solution, but they haven't found it yet.

On the one hand, Zhang Hao can only ask people to find answers from advanced civilizations, including the remains of the Liuli Island spaceship that is still being explored. Time can only be a waste of money.

In addition, it is to increase research in physical technology. At present, it seems that physical technology is the most reliable.

In other words, the technology in formation is not bad. After all, it is not easy to support a civilization of practice. However, Dayang Group is not yet capable enough to completely solve the problem of formation. After all, this is something left by advanced civilizations.

Dayang Group has started new research, but the research and launch of the rocket is still going on. On the one hand, it is researching technology, and on the other hand, it is the right thing to do. By the way, it is a piece of cake for the allies of Dayang Group.

Although the current international situation is generally within Dayang Group's and Zhang Hao's expectations, it has gradually gotten out of control.

In a word: Masters at the Dharma level are too cruel!

Although the attack of the nuclear bomb is terrible, such as the "two fat man" of Dayang Group; but the nuclear bomb is only a one-off. On the contrary, masters at the Dharma level can continue to destroy - the theoretical lifespan of these masters is as high as two thousand years.

Although the nuclear deterrence of the Dayang Group is still effective, the influence of nuclear deterrence has dropped to a freezing point following the duel of masters at the Faxiang level.

This, after all, is the world of practice!

Therefore, Dayang Group wants to explore outer space as soon as possible, hoping to get a breakthrough opportunity from outer space. The main practice method of Dayang Group is "Zhou Tiangong". According to the vague description of the exercises, the masters of Dayang Group generally believe that going to outer space may help break through to a higher level.

Practicing "Zhou Tian Gong", what's the matter lying on the ground!

This statement is very reasonable, and Zhang Hao is also moved. That is, this planet is a bit big, and it is not easy to break through.

However, Mr. Zhang has a lot of things to do. After arranging the aerospace mission, he will inspect the next stage of Dayang Group's focus: the standardization of practice.

Now Dayang Group is going to establish a national education and practice system in Xihai Principality, and the "standard teaching materials" compiled by Dayang Group's law experts have entered the review stage.

It is foreseeable that in the new semester after June, schools across the country will be able to use new textbooks. But the practice textbooks need to be equipped with pills. At present, Dayang Group's marine medicine field has started to pick, and Xinglintang has begun to test the new elixir production line.

Dayang Group is still under great pressure to meet the supply of pills for the whole country, and possibly even some schools in Qixia Country.

However, before the work was over, something happened on Liuli Island and the spaceship ruins.