this narration is wrong

"Boss, can I understand that you want to trick them and let them see our technology, but they can't get our technology." Liu Xiaoyin asked after thinking for a while.

"Yes, non-cooperation is non-cooperation. If they want to visit, let them go. When they see our production line, they will be more thirsty for our technology, and then they can only keep thinking about it.

And we are not a state-owned enterprise. In fact, only we can decide who to cooperate with, which puts us in a favorable position. "

Liu Xiaoyin suddenly realized after hearing this, she finally understood all Guo Yuan's thoughts.

However, Liu Xiaoyin was still a little confused at this moment. She asked Guo Yuan: "Boss, if we do this, they won't make them jump over the wall, right? After all, rabbits bite people when they are anxious! Boss, you compared them to foxes."

Guo Yuan smiled slightly and said: "Sister Liu, don't worry! I have arrangements for everything you are worried about, and there will be no problems.

Besides, most of the core technologies in the company are basically developed by me alone. Under this premise, do you think they have the ability to steal secrets from my brain? "

After Guo Yuan finished speaking, Liu Xiaoyin was stunned for a moment, and then smiled.

Guo Yuan is indeed right. Whether it is the artificial intelligence module that the company is proud of, or the starry sky engine, or the image recognition technology recently used in sweeping robots, smart door locks, and cameras, it is Guo Yuan himself. Take it out.

Even the current production line upgrading and transformation technology in the production workshop is mainly developed by Guo Yuan himself, and the technical team leader from the military also carried out the transformation based on Guo Yuan's ideas.

With so many high-precision techniques, it would take a while for Guo Yuan to teach these things to others, and the other party might not even understand.

Not to mention directly stealing it.

Therefore, the company’s technical confidentiality should be no problem.

It was precisely because of this that Guo Yuan had the confidence to let these foreigners visit the production workshop.

Thinking of this, Liu Xiaoyin felt completely at ease, and she said confidently: "Boss, if you say this, I understand. Then I will arrange a delegation to visit the factory."

"Well, go ahead. If those people dare to look down on you, just come back and cancel the visit first."

"I don't think they will."

"I think so too."

After speaking, Liu Xiaoyin and Guo Yuan looked at each other and smiled before turning and leaving.

After Liu Xiaoyin left the office, Guo Yuan thought of Liu Xiaoyin's worries just now. After thinking for a while, he said: "01, send a message to the company's security department and ask them to add more security forces in the production workshop."

"Okay, Mr. Guo Yuan."

"You also send a clone directly over and keep an eye on them."

"I'm going right now."

After explaining 01, Guo Yuan was completely relieved now. With 01's clone here, they couldn't afford to make any trouble.

When necessary, 01's clone can also take over the equipment in the production workshop and give them an "Omnic Crisis".

Ten minutes later, Guo Yuan received a message from Liu Xiaoyin.

"Boss, I've asked my subordinates to take the delegation to our production workshop. Factory Director Zhao is also making preparations."

"I know, I'll leave the rest to you."

After speaking, Guo Yuan clicked on the surveillance camera and watched the visiting delegation's motorcade heading out of the park on the computer screen.

"These uninvited guests have finally left!" Guo Yuan muttered to himself, then returned to his desk to continue working on unfinished work.

The design drawing of the rocket engine now only consists of three parts: the atomizer, the main combustion chamber, and the nozzle.

Compared to the previous design, this remaining part is very critical.

Due to material limitations, the combustion reaction in the current rocket engine cannot achieve maximum combustion efficiency.

Because the temperature of the gas produced under optimal combustion conditions can reach more than 4300 degrees Celsius, which is a high temperature that engine materials cannot withstand.

In order to avoid extreme high temperatures, engines designed by humans can only adopt methods to reduce combustion efficiency.

The principle is that if the reaction of 2 units of fuel with 1 unit of oxidizer is the optimal ratio, in order to reduce the combustion release temperature, engineers artificially modify the ratio of fuel and oxidizer so that the combustion reaction cannot reach the highest efficiency.

In this way, the temperature of the main combustion chamber will drop, and of course, part of the propellant will be lost.

Depending on the adjustment ratio of fuel and oxidizer, the reaction that occurs when there is excess fuel is called fuel-rich combustion, and the opposite is called oxygen-rich combustion.

It can be seen from this that the upper limit of ergonomics is, even so, the temperature of the main combustion chamber and nozzle will still be too high.

Researchers still must take additional steps to reduce the effects of temperature on the main combustion chamber and nozzle.

This requires overall consideration and overall planning when designing the main combustion chamber and nozzle. The ultimate goal is to tame the extreme high temperature generated by the high-temperature gas in the combustion chamber and nozzle like a wild horse.

The solution Guo Yuan can think of now is to cool the nozzle wall.

There are several cooling options to choose from here: ablative cooling, regenerative cooling, radiative cooling, membrane isolation, etc.

Of course, this method does not conflict with the breakthrough made by Rongyang Technology's high-temperature fusion device to create stronger, high-temperature-resistant alloys.

With high-temperature resistant alloys, this type of cooling method must continue to be promoted.

One is to solve the problem at the source, and the other is to assist in cooling, which is like installing a computer.

One is to improve the configuration so that the computer itself will not generate such a high temperature when running, and the other is to install more cooling fans so that the temperature inside the computer can be lowered as quickly as possible.

A two-pronged approach is king.

As for which of these cooling solutions to use, Guo Yuan thought about it again and again and decided to use regenerative cooling and membrane isolation methods in his engine.

The starting point of this choice is to save propellant to the maximum extent and to ensure engine maintenance efficiency.

"01."

"I'm here."

"Map two regenerative cooling options for my needs."

"Okay, Mr. Guo Yuan, please put forward your needs." Guo Yuan nodded and expressed his thoughts.

Soon, 01 completed the two methods of drawing as Guo Yuan said.

The first option is to use low-temperature fuel to pass through the nozzle wall before entering the combustion chamber, which can take away some of the heat and also heat the fuel itself.

The principle seems very simple, but there are many problems in actual design and manufacturing.

How to design the flow of fuel through the nozzle will be related to the design of the nozzle.

In order to increase the contact area between the fuel and the nozzle and allow for more complete heat transfer, researchers will design countless small fuel channels in the engine nozzle wall to allow low-temperature fuel to circle around the nozzle through these channels.

The design and processing of these small channels are complex, and the diameter of each channel may even be less than 1mm. The extremely small diameter of the pipe makes pipe arrangement and manufacturing extremely difficult.

According to Guo Yuan's understanding, some domestic engine pipes are welded by craftsmen one by one. The difficulty can be imagined, and these craftsmen are indispensable treasures for the national aerospace industry.

Guo Yuanhe Future Aerospace definitely does not have the ability to find such high-end talents, so his design plan is very critical.

The above is the regenerative cooling solution designed by 01. Guo Yuan looked at it and saw no major problems in his own eyes. The narrator did not give any hints, so it should be fine.

Then Guo Yuan turned his attention to another cooling method designed by 01-membrane isolation cooling method.

This method is to form a fluid film between the high-temperature gas and the engine wall. This film will isolate the high-temperature gas and thus act as a thermal insulation.

The fluid used in general membrane isolation may be gas or liquid.

For example, the vacuum version of the Merlin engine used in Musk's Falcon series rockets pumps the exhaust gas generated in the gas generator into the nozzle extension for air film isolation, which plays a cooling role.

The engine of the Saturn V, the largest super rocket in human history, also pumps the exhaust gas from the turbine pump into the nozzle for film cooling.

Of course, in addition to gas film isolation, there is another way to directly penetrate the low-temperature fuel into the nozzle through high pressure.

In the absence of sufficient oxidizer, the infiltrated fuel will not burn directly. The fuel will form a liquid film to isolate the high-temperature gas and avoid direct contact with the nozzle wall.

Another interesting point is that if the fuel contains carbon, the fuel will be coked by the high temperature carried by the high-temperature gas to form soot.

The soot will adhere to the walls of the combustion chamber and nozzle. As it burns at high temperatures, the soot will be ablated into smoke and ejected by the exhaust gas. This process will also take away part of the heat.

An ablation cooling reaction occurs without prior preparation of ablation materials.

After reading the plan behind 01, Guo Yuan touched his chin and said: "01, can you integrate regenerative cooling and membrane isolation into one design?"

“Yes, in order to be compatible with the highest temperature that the material can withstand, you only need to use oxy-fuel combustion, so that the temperature in the combustion chamber can be lowered.

As for the arrangement of fuel pipes in the nozzle, the design can be arranged vertically, so that the low-temperature fuel passing through the nozzle can circulate more quickly. "

After hearing 01's answer, Guo Yuan's eyes lit up. In this way, the high flow rate of low-temperature fuel per unit time can neutralize more of the high temperature in the nozzle.

"What about membrane isolation?" Guo Yuan asked next.

“You can spray part of the liquid oxygen directly on the inner wall of the combustion chamber through an injector, so that a thin film of gas can be formed.

According to my calculations, this method can effectively manage the contact between the high-temperature gas in the main combustion chamber and the combustion chamber wall, and protect the main combustion chamber wall from being burned by high temperature. "

"In this case, does it require more design on the injector?" Guo Yuan then asked.

"Yes, but I suggest that the injector and main combustion chamber should be completed first." 01's clone gave its suggestion.

Guo Yuan thought for a while and retrieved the design drawings of the injector.Now it is necessary not only to ensure the atomization of the mixed fuel and oxidant in the injector, but also to allow the injector to complete the task of spreading the liquid oxygen to the film.

After much thought, Guo Yuan decided to add a new design to the position of the injector mouth.

"Mr. Guo Yuan." 01 interrupted Guo Yuan's movements.

"what happened?"

"Mr. Guo Yuan, I suggest that Guo Yuan add a propellant injection port directly on the sleeve. This injection port also inputs a small amount of liquid oxidant. This part of the liquid oxidant will form a uniform water curtain under the action of high pressure. Sprinkle it on the combustion chamber wall to complete the construction of the isolation film.”

Guo Yuan added the relevant design as 01 said, and then asked 01 to add the design to the 3D model of the star engine.

"Ding ding ding ding~" A sudden ringing phone interrupted Guo Yuan's work.

Guo Yuan glanced at the caller ID and found that the call was from Director Zhao from the production workshop. Guo Yuan answered the phone, and Director Zhao's anxious voice came from the receiver: "Boss, it's not good."

"Why are you panicking? If you have something to say, please speak slowly."

"Boss, these visiting delegation members have to bring electronic equipment into our production workshop."

Hearing this, Guo Yuan felt a surge of anger in his heart. He knew that these people were determined to be evil, and his tone was unconsciously stern: "You want to let them in if they want to bring electronic equipment? What do you want to eat?"

"Boss, they said that if I don't let them in, they will post our unreasonable behavior online. I am also worried about the company's corporate image."

"This is not something you should worry about." Guo Yuan interrupted Director Zhao.

"Old Zhao, you are the director of the production workshop. What you need to ensure is the work safety of the production workshop and the non-leakage of production materials. I shouldn't need to remind you about this, right?"

Director Zhao suddenly felt something bad when he heard the impatience in Guo Yuan's tone. He immediately said: "Boss, I understand what you mean. I will ensure production safety and production materials are not leaked."

"Then go do it!"

With Guo Yuan's "imperial edict", Director Zhao felt confident, and his attitude instantly became tougher: "Mr. Wajdi, if you think you can't visit without carrying these electronic devices, then... Please go back!"

"Zhao, what do you mean? You are not afraid of us."

"Whatever, you can post whatever you want." Director Zhao interrupted Wajdi Buyazi and said.

Wajdi Buyazi's face darkened, but he finally held back and did not have an attack. He walked to Director Zhao and took out a bank card from his pocket: "Zhao, there are 100 million meters in it." Yuan, if you let us bring some equipment in, all the money in it will be yours."

Director Zhao sneered. He was considered one of the top executives of Future Technology and was equipped with 02.

He knows very well that the company's cameras are all controlled by 02. Isn't accepting bribes like lighting a lantern in the toilet - asking for shit (death)?
So Director Zhao directly pushed the bank card away: "Sorry, Mr. Wajidi Bouazi, money can't move me. Either hand over your electronic equipment or leave now." (End of Chapter)