Great Power Heavy Industry: Rise

Chapter 71 The Long Conversation

After Zhong Cheng went to the workshop to say hello to Zheng Yilun, he immediately got on his bicycle and set off.

Beifei Company is located in the southeast of Beishan City, only four or five kilometers away from the headquarters of Hongxing Company, and only fifteen kilometers away from the electric car factory.

He raced all the way in the drizzle, and arrived at the gate of Beifei Company in less than half an hour, but was stopped by guarding soldiers.

Beifei Company is also a large military enterprise, and its confidentiality level is higher than that of Red Star Company, so of course he cannot get in.

He had no choice but to take out his mobile phone to call Yang Xi and ask him to come out.

Half an hour later, Yang Xi ran out out of breath, and quickly explained that the factory area was too big, and he ran away after receiving the call and asked Zhong Chengjiu to wait.

Zhong Cheng didn't take it seriously, and took Yang Xi to find a teahouse nearby. Both of their clothes were already wet.

After the Spring Festival last year, Yang Xi went to Red Star Company to find Zhong Cheng and paid back the money, but he was still grateful for Zhong Cheng's help. He happily asked Zhong Cheng why he came to him when he was free.

Yang Xi is still the same, a 30-year-old bespectacled youth with a medium-thin build, but this time he is no longer unkempt, unshaven, and disheveled, and much neater.

Zhong Cheng took off his military uniform and wiped the rainwater off his face.

After pondering for a while, he said solemnly: "Yang Xi, I am here to ask you for help this time. I want you to help design a new type of electromagnetic ion propulsion engine, which can be used in aircraft."

"what?!"

Yang Xi was dumbfounded, and it took him a long time to blink and react.

It's like a person who is bored and goes to chat with a classmate, only to hear the classmate say that he is going to bomb the White House.

But Zhong Cheng is obviously not that familiar with him, and he doesn't seem like a joker.

"Are you serious?" Yang Xi was still not sure.

"I'm now a member of the Daily Engineering Promotion Committee of Red Star Company. Do I have the time to make fun of you?" Zhong Cheng had to push himself a little higher, otherwise the chat would be impossible.

Yang Xi obviously knows that Red Star's daily electric cars are popular in the market and win glory for domestic cars, and he has also heard about Zhong Cheng's deeds.

He got serious, picked up the teacup, and swiped the lid unconsciously in the tea water.

After a long while, he said: "I'm engaged in jet engines. The ceiling of jet engines is so high. Laomei is almost at the top. No matter how hard we try, it will be very difficult to surpass Laomei. Even if we exceed it, it will be very limited." .”

"En!" Zhong Cheng nodded. He had studied this point seriously and agreed with it.

Yang Xi went on to say: "So I have been thinking about the new aero-engine for a long time."

He looked at Zhong Cheng, and his tone became excited:
"As of today, all human high-speed aircraft and rocket engines rely on the reaction force generated by throwing things outward to obtain power. Academically speaking, it is the law of conservation of momentum.

The existing physical theory has the same level of understanding of the gravitational space as the magic stick, and there is no engine principle other than the conservation of momentum at all.

Therefore, for a long time, the engine has to rely on throwing things to generate power. The faster you throw, the greater the power.

I'm very sorry, after so many years, it's still Newton's third law.

Therefore, any engine that wants to go to the sky is designed around 'how to throw fuel faster'.

For example, in today's aircraft engines, in order to throw them faster, they pour fuel desperately. Air is needed for combustion, so an exhaust fan is installed in the engine.

But the oxygen content of the air is only 20%. Even if the exhaust fan compresses the air into a liquid and stuffs it into the combustion chamber, there is not much oxygen, so the fuel injection speed is not fast, only a few hundred meters per second, which is difficult for a rocket. It's between the teeth.

The rocket engine comes with pure oxygen, of course the combustion is more complete, and the fuel injection speed can reach 2-5km/s.It's a pity that after so many years, the best fuel is still liquid hydrogen and liquid oxygen. If you want to go faster, you have to use explosives.

The explosion speed of explosives is generally 7km/s, but using explosives as fuel is too much for ordinary people.

In general, this is probably the limit of chemical fuels. "

Zhong Cheng nodded in agreement again. This guy's theoretical knowledge is very solid, but he is a bit "angry youth".

Yang Xi then talked about the ion engine mentioned by Zhong Cheng.

"Since you found me, you must know a lot about ion engines. The thrust of the best ion engines put into practical use is enough to lift an apple on the ground. Do you know how much an airplane weighs?"

"Boeing 747-400ER, empty weight: 187 tons, take-off weight: 412.8 tons, let alone such a heavy one, let's put it lightly, J-11 fighter jet: empty weight: 16.38 tons, normal take-off weight: 23.926 tons."

Zhong Cheng quickly said the exact number, his memory is not a joke, which made Yang Xi stunned for a moment.

Yang Xi then jokingly asked: "How big an ion engine do you want to use to propel these big things, is it bigger than a five-story building? And what about the power battery?"

He said apologetically to Zhong Cheng: "Zhong Cheng, I really want to help you, and I am very interested, but your idea is too advanced, there is really no way!"

Yang Xi's words were all within Zhong Cheng's expectation. He picked up the teacup, drank it in one gulp, and prepared to speak slowly.

"Don't worry, let's talk about the power battery first, you know the performance of the battery of the daily electric car, right?"

Zhong Cheng eloquently told Yang Xi about the situation of the Kuafu power battery and the performance it will achieve in the future. Of course, the production of core materials and some key processes were omitted.

At first, Yang Xi listened to Zhong Cheng's introduction with the attitude of listening to a story, but the more he listened, the more excited he became, and his eyes became brighter. Before Zhong Cheng finished speaking, he slapped the table and said loudly:

"Your calcium-intercalated graphene material used in the battery is really flowers inserted in cow dung!"

"what?!"

Zhong Cheng is stunned, is this guy losing his mind?

Seeing Zhong Cheng's stunned expression, Yang Xi smiled awkwardly and said, "I'm excited, I don't mean to belittle your power battery, what I mean is that this new type of material should be used in ion engines, it's a perfect match what!"

"Oh?!" Zhong Cheng became interested when he heard this.

"It's like this. You must know the principle of the ion engine. Regardless of the electron gun, ionization chamber, accelerating electric field, etc., the current generates a magnetic field in the coil to play a role. At present, the bottleneck of the ion engine lies in the copper winding coil used. The current density and magnetic field strength are too small, and the power dissipation due to resistance is too high."

"Currently the best Hall electric thruster has a power of 100 kilowatts, a record-breaking thrust of 5.4 N, and a thrust of less than one kilogram. 100 kilowatts is equivalent to the engine power of a car, but I can only mention an apple here... 99% of the energy is wasted."

"But if you use your calcium-intercalated graphene material to make a coil, you can greatly increase the current density and magnetic field strength of the ion engine, and you can also greatly reduce energy consumption, because your material is already equivalent to a superconductor."

Zhong Cheng seemed to be enlightened, "Yes, why didn't I think of it, please explain carefully!"

"Do you know the particle collider used for high-energy physics research?"

"Of course I know, but it is already related to the field of quantum mechanics. Is it related to my ion engine?"

Yang Xi showed a frantic expression on his face, "Of course I don't want to build a real material collider, but I want to use its principle of accelerating microscopic particles to improve the electron gun of the ion engine and emit electrons at a speed far exceeding the current level. It will increase the ejection speed of charged ions by hundreds or thousands of times, thereby increasing the thrust of the ion engine by hundreds or thousands of times."

"You mean to use the superconductivity of this new type of material to make a high-energy synchrotron?" Zhong Cheng guessed what he meant.

"It's absolutely correct. Although calcium-intercalated graphene is not a real superconducting material, we don't really need to accelerate electrons to the speed of light. It is completely sufficient to apply it to a miniature ion engine."

What a brainstorm!
Zhong Cheng deeply felt that his too rational mind was not a good thing, it was what 9527 said was bound by the existing knowledge framework.

Yang Xi enthusiastically explained to Zhong Cheng the concept of the ion engine he envisioned. Zhong Cheng listened and put forward some supplementary opinions. His research on the principle of ion engines in the past few months has been very in-depth and comprehensive.

All that was missing was an inspiration.

The two talked more and more deeply, and went into detail about the design of each coil and each circuit. In the end, the two of them summed up. According to their expectations, the ion engine may obtain a thrust of several thousand newtons, or even tens of thousands of newtons (1 ton of thrust) ), which is thousands of times higher than the existing ion engine.

But such a thrust is far from enough for a large aircraft weighing dozens of tons or hundreds of tons.

Zhong Cheng smiled, "I didn't make it clear. I just want to use this ion engine on military drones. My military drones can weigh a ton or two at most."

Yang Xi was relieved and also smiled, "That's enough. Our ion engine is very small, maybe as big as a rice cooker. The electron accelerator can be coiled in the body of the drone. If five or six units are installed, the Accelerating such a small drone to more than 8 times the speed of sound is completely fine."

Speaking of this, the two began to discuss the shape and materials of the UAV under the condition of supersonic speed.

The guests in the teahouse came and went one after another, the tea in front of the two of them had already been drunk, and the waiter's face was already ugly, but he was just pretending to be affectionate.

If it weren't for the captain's military uniform that Zhong Cheng put on the chair, the waiter would have wanted to chase him away.

The owner of the teahouse came to see it once, and quietly asked the waiter to change the tea and bring some desserts, so that he would not disturb the conversation between the two.

The boss is from the old Beishan, and this situation is not uncommon in Beishan.

It wasn't until Yang Xi's cell phone rang that the two realized it was already 6:30 the next morning.

They entered the teahouse at around 10 am yesterday, and they have talked for 20 hours, what a long conversation!
Based on this detailed discussion, Zhong Cheng is [-]% sure that he can design an ion engine that meets his needs, but he is still very eager to recruit Yang Xila into the research and development team of military drones.

One is that Yang Xi's contribution cannot be so unclear, and the other is that he still counts on Yang Xi to come up with more fantastic ideas during the research and development process.

"Yang Xi, I once again solemnly invite you to join this project!"

It was getting late, and Yang Xi had to go to work, so Zhong Cheng had to end the conversation.

Yang Xi's excited expression dimmed, "I want to, too, but our company can't let me go, it's deadlocked, I don't think your company dares to take me in, does it?"

It was only then that Zhong Cheng realized that this was a troublesome matter. After all, they belonged to the two companies, and it wasn't just Zhong Cheng who said they needed people.

He thought for a while, and said firmly to Yang Xi: "Don't worry, this matter is on my shoulders, just wait for the news."

He got up, picked up his military uniform, and strode out of the teahouse. At this time, the sky outside was already light and the rain had stopped.

The only way to do this is to go to the leader. If they don't help, just wait until they do!
Zhong Cheng has made up his mind, he will decide on this person!
　Two explanations for the few readers:
　　1. The law of conservation of momentum

　　If a system is not subjected to external force or the sum of external forces is zero, the total momentum of the system remains unchanged. This conclusion is called the law of conservation of momentum.

　　The law of conservation of momentum, the law of conservation of energy and the law of conservation of angular momentum together become the three basic laws of conservation in modern physics.

　　The law of conservation of momentum is deduced from the invariance of space translation, the law of conservation of energy is deduced from the invariance of time translation, and the law of conservation of angular momentum is deduced from the rotational symmetry of space.

　　At first they were corollaries of Newton's laws, but later it was found that their scope of application was far wider than Newton's laws, and they were more fundamental physical laws than Newton's laws, reflecting the nature of space and time.

　　2. Newton's third law

　　Content: The action force and reaction force between two objects are on the same straight line, equal in magnitude and opposite in direction.

　　Explanation: To change the motion state of an object, there must be other objects interacting with it.The interaction between objects is represented by force.And pointed out that the action of force is reciprocal, and if there is an action, there must be a reaction force.They act on the same straight line, are equal in magnitude and opposite in direction.

　　Also note:
　　(1) There is no distinction between action force and reaction force.arise and disappear at the same time.

　　(2) The pair of forces act on different objects and cannot be canceled out.

　　(3) Action force and reaction force must be of the same nature.

　　(4) It has nothing to do with the frame of reference.

　　
　
(End of this chapter)