Rebirth 2010: I add some points to be a boss

Chapter 320 From a monthly salary of 1 to an annual salary of one million!Yun Kun expansion
Bao Xiangwen was alone in the interview room.

The air-conditioning is sufficient, a bit chilly, and the lights above the head are extremely bright, but very soft, without glaring feeling.

Large-screen monitors, Moss AI second-generation speakers, projectors and other equipment are all available, and there are various tea and fruit plates on the table.

"Crunch"!
The glass door was pushed open, and three interviewers walked in.

The young man in the lead, only in his early 20s, is tough and handsome, with a well-tailored suit, making his figure look even stronger and taller.

On the left is a vigorous middle-aged man with slightly sunken cheeks and thin eyes, wearing a loose casual coat.

In the end is a lady, in her 30s, wearing a set of business attire, with meticulous lining and matching. It can be seen that she is an extremely rigorous person.

"Good morning, three, I'm Bao Xiangwen, the interviewer."

Bao Xiangwen stood up and introduced himself.

"Please take a seat, you're welcome."

Chen Heyu waved his hand and said.

"I am Wei Guangji, the general manager of Yunkun Space Company, this is the big boss Chen Heyu, and the other is Shi Yijia, the director of personnel department.

We all have a basic understanding of Mr. Bao's situation. You used to be a technician at the Toyokyo Aeronautical Research Institute, and you were mainly responsible for the rocket power system. Can you talk about your previous work? "

Wei Guangji was the first to ask.

big boss?

Chen Heyu?
Bao Xiangwen was secretly startled. He heard people say that the initial investment of the Yunkun project was 100 billion Chinese dollars, and there will be additional funds of 200 billion Chinese dollars in the future.

You are worthy of being the founder of Future Technology and Shanhai Microelectronics, you are really arrogant!
"Of course, I joined the Institute in 2006 and obtained the qualification of a researcher in 2008. Since September 2010, I have been independently responsible for the design and development of low-temperature propulsion engines. , Provided a perfect technical solution.

Let me talk about liquid oxygen kerosene high-pressure supplementary combustion first, which is a core technology to improve the thrust and efficiency of rocket engines.

The specific operation method refers to injecting liquid oxygen and kerosene into the combustion chamber of the rocket engine at the same time. Under high pressure and high temperature conditions, more combustion products will be produced, and the instantaneous injection speed and thrust will be further improved.

And, this technology has four advantages:
First, increase the thrust: supplementary combustion technology can increase the fuel mass flow rate, improve the energy release of the combustion reaction, thereby increasing the thrust of the rocket engine;
Second, improve efficiency: Supplementary combustion technology effectively utilizes additional fuel to improve the energy conversion efficiency of the combustion process, thereby improving the combustion efficiency of the rocket engine;

Third, flexibility: Supplementary combustion technology enables the rocket engine to adjust the fuel ratio at different stages to meet different mission requirements;
Fourth, adaptability: liquid oxygen and kerosene are common and easy-to-obtain fuels, so liquid oxygen kerosene high-pressure supplementary combustion technology has strong adaptability and operability..."

Bao Xiangwen talked eloquently. When he talked about his field of expertise, his eyes were bright and full of confidence, and he could not see the original uselessness at all.

Chen Heyu nodded slightly. He had read so many professional books, and it wasn't for nothing. Even without the system's notification tone, he could still tell that the other party's abilities and talents were absolutely outstanding.

With the sound of "ding ding ding" in his mind, he thought for a while, and then directly wrote "P5" in the interview evaluation area.

"As for the liquid oxygen methane engine, it is a rocket engine that uses liquid oxygen (LOX) and methane (CH4) as fuel.

It usually includes a combustion chamber and a nozzle.

In the combustion chamber, liquid oxygen and methane are mixed and ignited to produce high-temperature and high-pressure combustion gas, which is then injected through the nozzle to generate thrust.

As far as I know, SpaceM, a space company in the beautiful country, uses a fuel formula that uses methane (CH4) and liquid oxygen (LOX) as fuel to drive the Raptor engine. "

Bao Xiangwen paused for a moment, then continued to add.

"I want to increase the number of rocket launches and reduce launch costs. From your professional perspective, do you have any better suggestions?"

Chen Heyu became interested, and asked with a smile, leaving aside Wei Guangji.

"Theoretically, there are many ways that can be realized. If you want to reproduce it perfectly, you need to continue to experiment. Let me talk about my personal opinion first:

Firstly, the mixed-cycle combustion technology is used to burn the fuel and oxidant separately in different combustion chambers, and the high pressure and high temperature generated by the exhaust gas are used to drive the turbo pump;
Secondly, improve the technology of full cooling cooler, let part of the fuel sent by the turbo pump flow through the wall of the combustion chamber, realize the cooling of the combustion chamber and the nozzle, which can effectively reduce the temperature of the combustion chamber, thereby improving the durability and reliability of the engine sex;
Thirdly, design an engine with multi-point ignition function, even in the case of ignition failure, it can still carry out the mission smoothly or return safely;
Finally, strengthen the structural design, use high-strength, lightweight materials and advanced manufacturing processes to meet the challenges of multiple launches and recovery. "

Bao Xiangwen thought for tens of seconds, sorted out the logical order, and interpreted the words one by one.

"Sorry, I would like to ask, from your description, it can be seen that you have rich experience in rocket engines and fuel ratios, but why can't you find any of your papers in mainstream domestic journals?"

Shi Yijia, director of personnel, asked a sharp question.

This is the duty she must perform. Although some candidates spoke eloquently and hype during the interview, after investigation, it was found that the other party had no real information at all.

"I……"

Bao Xiangwen opened his mouth, hesitating and not knowing how to explain.

"Mr. Bao, is there something unspeakable?"

After graduating, Wei Guangji went abroad for further studies. He has been active in the aviation industry in Europe for many years.

"I don't have enough connections, even if I make a scientific research result, I don't have the right to authorize it."

Bao Xiangwen replied dryly, raised his mouth veiledly, and his face was full of helplessness.

"What? Is there such a thing?"

Wei Guangji was so shocked that he couldn't believe it. He turned to look at Chen Heyu, as if he wanted to ask for proof.

"Mr. Bao, I can understand. This is an engine design proposal. Can you see if there is any problem?"

Chen Heyu smiled, ignored Wei Guangji, took out a stack of documents from his hand, and handed them to Bao Xiangwen.

"Okay, everyone, please wait a moment, I need a little time."

Bao Xiangwen said frankly.

"Please!"

Chen Heyu picked up a pot of lemonade, poured himself a glass, took a sip, and waited patiently.

Bao Xiangwen opened the documents, the first A4 paper was printed with a structural diagram of the engine, including the combustion chamber, fuel system, oxidizer system, guidance system and cooling system, as well as turbo pumps, nozzles, valves, and sensors.

In terms of fuel selection, it is the methane (CH4) he just mentioned. Although compared with kerosene, methane has a higher combustion temperature and lower energy density, but its advantage is that it can be combined with liquid oxygen (LOX) to produce 200 to A terrifying propulsion between 250 tons.

Under vacuum conditions, it can even reach 300 tons!
"Mr. Chen, this technology is one level more advanced than the engine design of Fengjing Research Institute.

With my ability, I really can’t see any problem. If I insist, it’s only a problem with the high ballast in the chamber. The value is 30 MPa. Once there is even the slightest foreign matter in the fuel, it will..."

After a long time, Bao Xiangwen read the entire document, raised his head and replied.

"Will it explode? Indeed! Aluminum alloy and Kevlar materials are simply irresistible, so do you have any solutions?"

Chen Heyu asked with a smile.

"If you don't consider the factors of cost and manufacturing difficulty, I have three suggestions:
First, optimize the structural design of the combustion chamber: use pre-cooled liquid oxygen-methane propellant to surround the wall of the combustion chamber so that it can withstand high temperature and high pressure combustion gas;

Guide part of the unburned fuel and oxidant through the fine pipeline network, flow along the wall of the combustion chamber, absorb the heat generated by combustion, and cool it to an acceptable temperature;
Second, efficient heat dissipation: use the full cooler to form a thin liquid film on the wall of the combustion chamber to isolate the unburned fuel and oxidant from the high-temperature gas generated by combustion, avoid direct contact, and reduce heat conduction.

Then through the coolant circulation in the pipeline, the heat will be effectively taken away and dissipated to the outside;

Third, use high-temperature-resistant alloys and high-pressure-resistant materials to build key components such as combustion chamber walls and turbo pumps to increase their ability to withstand high-temperature and high-pressure environments;”

Bao Xiangwen still showed no fear, and narrated clearly.

He didn't even know that the prototype of the technical document in his hand was SpaceM's Raptor engine.

"Not bad! Let's see this material again?"

Chen Heyu nodded in satisfaction, and handed over a document again, which was a new type of engine he had re-improved on the basis of the Raptor engine.

He named it "Dijiang"!
预估参数为海平面推力400吨（3921kN），真空推力452吨（4430kN），燃烧室室压高达32MPa。

If put into use, "Dijiang" will become the second largest active liquid rocket engine in the world, second only to Tianding Rocket's RD-171 (7904 kN).

"Genius design!"

Bao Xiangwen was secretly convinced.

"Self-generated pressurization! Use a heat exchanger to heat methane and liquid oxygen, so that the fuel in the storage tank will be self-pressurized after continuous consumption, which can effectively avoid explosions caused by helium pressurization."

Bao said to Wenyang, a little pleased to see Liexin, he couldn't help asking: "May I know the name of this designer?"

Wei Guangji looked at Chen Heyu with a strange expression, his boss is really almighty.

"Dong dong!"

Chen Heyu raised his finger and tapped on the table.

Shi Yijia understood in seconds, glanced at the interview form, and saw the eye-catching word "P5", and her heart trembled suddenly.

Since the establishment of Yunkun, this is the fourth "P5" level employee!

Among the first three people, one is a big cow in the field of spacecraft design, proficient in aerodynamics, structural design and human-machine interface interaction;

The other is a material scientist with a solid foundation in materials science and engineering, including an understanding of material structure, performance, processing, and properties;
Familiar with the research and development methods of various composite materials and high-temperature-resistant materials, and be able to design new materials to meet the requirements of spacecraft parts;
The last one is a rocket engineer, familiar with the application fields of various propellants, thrust control, and aerodynamics.

Each one is a top expert in the industry!
"Is Bao Xiangwen qualified?"

Shi Yijia felt suspicious, but as a wage earner, she naturally wouldn't ask more questions.

"Mr. Bao, what are your requirements for salary and treatment?"

Seeing the big boss nodding, Shi Yijia went straight to the topic.

"Just look at the company's arrangements."

Bao Xiangwen replied in a muffled voice that he had read the recruitment information on the Internet, and with his ability, it should be more than enough to apply for a supervisor engineer (P3), and the salary range is between 2.6 and 3.2.

No matter how you calculate it, it is several times stronger than the original 1 yuan!
"Mr. Wei, how do you feel?"

Chen Heyu asked casually.

"I am very optimistic about Mr. Bao's ability. If he is placed in the European Space Agency, he can also get the position of senior executive."

Wei Guangji told the truth without any worries.

Bao Xiangwen was overjoyed. Being recognized by others is always a pleasure. Could it be that the P3 position he interviewed for could be promoted to another level?

After the three communicated, they informed Shi Yijia of the interview results.

Chen Heyu and Wei Guangji got up to say goodbye, and Shi Yijia was the only one left in the room.

"Mr. Bao, after the evaluation of your boss and Mr. Wei, your entry level is P5, and your position is the chief engineer of the rocket propulsion department. The probationary period is two months, and the salary and benefits are not discounted.

Basic monthly salary: 6 Chinese dollars, a quarterly bonus every three months, a year-end bonus at the end of the year, a minimum salary of 15;
In other aspects, there are 2000 yuan of accommodation subsidies, 1500 yuan of transportation subsidies and 1500 yuan of food subsidies every month. Enterprise pensions and supplementary medical insurance will also help you purchase complete.

By the way, you have a wife and kids, right?Health insurance can cover your immediate family! "

Shi Yijia said in one breath, smiling and looking at each other.

P5!

The monthly salary is 6 Chinese dollars, and the minimum salary is 15 yuan!
With a monthly subsidy of 5000 yuan, the annual salary will directly exceed one million!

Bao Xiangwen was stunned for a moment. He knew that Yun Kun's treatment was good, but he didn't expect that it would be far beyond his imagination.

From a monthly salary of [-] to an annual salary of one million!It only took a few days? !
Bao Xiangwen had a feeling of unreality. He was dazed and subconsciously asked: "Mr. Shi, isn't the position I'm interviewing for a senior engineer in charge? Only P3 level?"

"That's right, the boss personally assigned you a rank! Or, if you have any other additional requirements, you can give me feedback.

In addition, according to your level, we can equip you with a three-bedroom house and a 50 scooter in Qindao. If you accept this benefit, the housing allowance and transportation allowance will be automatically cancelled. "

Shi Yijia explained.

"Let me take it easy, can I think about it first?

no no no!What I mean is that considering whether to choose a garage or a subsidy, it is not to consider whether to enter the job.

Look, I have all my suitcases with me? "

Bao Xiangwen pointed to the black suitcase in the corner and couldn't help laughing.

"Of course there is no problem. After you think it over, you can inform me at any time. You can also check in first during the recent period."

Shi Yijia added.

"Thank you, sorry for the trouble."

Bao thanked Wen.

"Later, I will ask my administrative colleagues to take you to check in, and I will formally join you next Monday."

Shi Yijia reached out her hand, shook Bao Xiangwen's hand, and reminded her warmly.

……

Two hours later, Bao Xiangwen lay on the soft sofa and looked around. The inner area of ​​the suite was a full 120 square meters, with three bedrooms, one living room and two bathrooms, complete with furniture and home appliances.

It is several times more luxurious than his house in Fengjing.

Pushing open the glass door of the living room, he stood on the balcony, breathing the sea breeze, and quickly took out his mobile phone to report his wife's safety.

"My wife, the interview went well, and I will be hired next Monday."

Bao Xiangwen grinned nonstop.

"So happy? Is the salary [-]?"

The wife asked curiously, and at the same time felt relieved and proud of her husband.

"Be bold and double it!"

It was rare for Bao Xiangwen to be arrogant, he straightened his back, looked at the blue sky and white clouds in the distance, and said leisurely.

"6?! Don't lie to me, let's not talk about it, Weiwei is home, I have to cook."

The wife hung up the phone hastily.

"But, it's really 6."

Bao Xiangwen said helplessly that this joy was destined to be kept in his heart, and his wife slowly accepted it.

At the same time, aviation research institutes across the country have seen a wave of resignations.

"Get out if you don't want to do it! If you don't do it, people will do it!"

The chief director of the research institute curled his lips, with a look of complete indifference, he did not expect what kind of impact the resignation of this group of people would have.

……

"Boss, Moss AI Glasses 2.0 will be officially released tomorrow, at 10:100 am, with [-] million pieces in stock!"

Zhang Nan called to synchronize the company's latest news.

"Well, I see, remember to do what I told you last time!"

Chen Heyu ordered.

　Gentlemen, there will be no change at 0 o'clock these two days. I am afraid that it will affect everyone's rest. Gentlemen, go to bed early.

　　
　
(End of this chapter)