Taking Bi2Te3 bismuth telluride as an example, including the United States, before the discovery of the doping mechanism, the thermoelectric conversion efficiency of bismuth telluride hovers at 2%-3% depending on the processing technology, not that there is no application value, the problem is that the application value belongs to the chicken ribs that are tasteless and abandoned.

Take the M1A1 main battle tank of the U.S. Army's active equipment as an example, with the skirts on both sides of the M1A2 track as the carrying components of the temperature difference generator, if Liang Yuan's shell replacement plan is put in, with the current technical level of semiconductor power generation in the United States, the power emitted by this shell-type temperature difference generator using the high-heat exhaust gas of the M1A1 main battle tank will not exceed 25K, and the cost will not be less than 1 million US dollars。

The technical basis on which Liang Yuan's shell-type thermoelectric generator relies is the standard after the new century.

Taking the only industrially produced bismuth telluride as an example, the bismuth telluride processed by a new process according to the principle of doping mechanism is no longer a simple Bi2Te3, but the structure has been mutated into Bi2Te2.85Se0.15, and the merit of bismuth telluride has been greatly improved after the element selenium is doped, and the thermoelectric efficiency that originally hovered at 2%-3% can be increased to 6% depending on the processing technology.

If the antimony-silver-magnesium series alloys, which were discovered only after the new century, are replaced, the thermoelectric efficiency of the new materials processed by the new process will reach more than 8.5%.

If the temperature difference generator of the M1A1 main battle tank is designed according to the technical basis that Liang Yuan relies on, even if the Bi2Te2.85Se0.15 with traditional materials and new technology will be used, the power generation will not be less than 50K, and if the new material temperature difference generator after the new century is adopted, the power generation will be increased to an astonishing more than 80K.

With the general engine power of 1100K of M1A1, I dare not say that I am not tempted in the face of more than 7% thermal efficiency improvement, which is almost a rebuilding of an intercooling and reheating system.

The intercooling and reheating system of the gas turbine is between 7% and 12% depending on the design level.

Of course, the oversized intercooling and reheating system of power plants or ships can increase the thermal efficiency of the power system by more than 15%, but the problem is that the tank has so much space for designers to waste.

After the first decade of the new century, the great development of thermoelectric materials has attracted the attention of the US Army, the Army Laboratory and GE have been interested in the utilization of M1A2 exhaust gas, and the preliminary experiments have also achieved good results, the problem is that after the first decade of the new century, the probability of a large-scale armored duel between major powers is probably not much higher than throwing nuclear bombs at each other, and the US Army has no demand for the various patch versions of M1A2 that will have to continue to fight for twenty or thirty years, and the application of new technologies will depend on the situation after 2030。

Although thermoelectric materials belong to foreign embargoes, due to the fact that they have not broken through the same position for a long time, Zhu Yusheng also has a general understanding of the top level of international thermoelectric materials.

After reading the entire document, Zhu Yusheng squinted his eyes and followed Liang Yuan's train of thought to go through this plan in his mind.

Liang Yuan's so-called stealth shell in addition to the appearance of reducing radar reflection of the index, is also the installation site of the semiconductor power plant, through the overall design, this shell with a certain thickness can be regarded as the tank engine oversized exhaust pipe, the engine high temperature exhaust gas through the temperature difference of the generator composed of the exhaust flue cooling power generation before being discharged into the atmosphere.

Liang Yuan also made full use of the general energy gradient application criteria of his old mentor Academician Wu Zhonghua to make segmented utilization of the high-temperature exhaust gas of the tank engine, and selected three types of semiconductor power generators of high temperature, medium temperature and low temperature to cool the high-temperature exhaust gas of the engine in turn.

According to Liang Yuan's design, the temperature difference generator is mainly composed at the tank track skirt, taking the 59 type tank equipped with a large number of republics as an example, if the skirt plate as the tank temperature difference generator is placed flat on the ground, and the upper and lower two sides of the double-channel design are adopted through the exhaust channel of the tank waste heat, and the single-channel cooling interlayer in the middle just cools the cold end of the temperature difference generator piece, so that each skirt plate will get the actual layout area of the temperature difference generator sheet multiplied by two.

The width of the side skirt of the 59 tank is between 0.6 and 0.7 meters, but the long skirt helps to improve the level of protection, Liang Yuan directly selected the value of 0.7 meters, the body length of the 59 tank is 6 meters, according to Liang Yuan's design, the area of the 59 tank for installing the temperature difference power generation sheet is about 16 square meters.

Of course, Liang Yuan is just for the convenience of calculation, it doesn't matter if the temperature difference generator is not arranged on the side skirt of the tank but on the car body, the surface area of 16 square meters looks very large, as long as the stacked design is actually not even four square meters may not be used, as for how big it is, it depends on the designer's thermodynamic skills.

According to the law of conservation of energy, the more electricity generated by the thermoelectric power generation device, the less energy that the tank can not use, that is, the less infrared signal leakage, which is to solve the problem from the root, and it is much more effective than the scheme of reducing the exhaust temperature of the tank through a large amount of air heat exchange.

Through theoretical calculations, Liang Yuan took the jewel turboshaft engine as an example, and took the Republic of China's Type 59 tank as the basis for modification, and concluded at the end of the document that the temperature of the high-temperature exhaust gas of the tank fully treated by the three-stage temperature difference power generation was finally discharged to the atmosphere at no higher than 50 degrees, and the power generated by the whole set of temperature difference power generation system was not less than 30K.

Liang Yuan did not mark the purchase price of this system, and directly applied the data of the old product and new process in the efficiency of thermoelectric materials, and the new material and new process were too big and a little scary, Liang Yuan did not choose, even so Zhu Yusheng still felt that the efficiency of the temperature difference generator calculated by Liang Yuan was very high.

However, due to someone smearing too much, although Zhu Yusheng could see various changes in Liang Yuan's design ideas, Zhu Yusheng couldn't figure out for a while that included various equations that were written in a mess of optics, electromagnetism, and even plasma, and just thought that Liang Yuan had chosen a certain raw data wrong.

Of course, if you don't consider the economic cost and technical difficulty, Zhu Yusheng thinks that Liang Yuan's shell replacement technology is quite good, not only taking into account the space for upgrading old tanks, but also verifying and reserving technology for the next generation of tanks through the transformation project.

Judging from the designer's thoughts embodied in this design document, Xiao Liang's thinking is not only very active, but also his reading volume is much larger than that of his peers, and it can be seen that Xiao Liang is still studying very hard in the juvenile class. ”

Although Zhu Yusheng has already sentenced this design document to death, even if Zhu Yusheng does not believe that Li Yuanling will put the decision on the Pakistani tank project in the hands of Liang Yuan, through this document, he can also know that the young man in front of him will have a great impact on Li Yuanling.

The core design idea on the document is Wu Zhonghua's professional scope, this document Zhu Yusheng believes that Li Yuanling and Wu Zhonghua must have helped Liang Yuan a lot, with the national conditions of the Republic and Liang Yuan's age, parents can let Liang Yuan do some kind of tank design without doing his job, it can be seen that Liang Yuan has broken away from the simple concept of children and younger generations in the family.

Listening to Zhu Yusheng praising someone's attitude towards studying at the University of Tokyo, Zhao Tianshi couldn't laugh out loud, thanks to the publicity of the two girls, now Liang Yuan's final results in the past few years have become the main joke when the middle and senior management of Yuanjia talk about someone on weekdays.

The big boss who often makes people doubt their lives is talented, and it is rare to have such a flaw that looks very funny, coupled with the fact that the two girls have no good effect on the wind and rain during the period, so that the informed employees feel very interesting, and they look at someone's every midterm final exam with a happy attitude, and even many departments have developed a small gambling game where someone hangs a few subjects.

Liang Yuan looked at the corners of Zhao Tianshi's curved mouth and knew what this thing was thinking, glared at Zhao Tianshi angrily, and said with a smile: "Old Zhu, according to my life experience since I was a child, it is actually a good thing to be criticized first, which means that the matter is afraid that you will be proud and your tail first, and there is nothing good to start with praise first, so as not to be hit by the slap below." ”

After communicating for so long, Zhu Yusheng grabbed Liang Yuan's temperament a little, and said with a smile: "Okay, I won't come to these vain things, I will call you Xiaoyuan from Lao Wu's side." ”

Liang Yuan smiled and didn't answer, waiting for Zhu Yusheng to comment on his somewhat nonsense brain hole design.

"Xiaoyuan's idea of replacing the shell of the old tank is still very good, objectively speaking, the tank protection idea and the three-view stealth line diagram on this document are of little benefit to my ongoing work. ”

As far as I know, Xiaoyuan's plan will be extremely difficult to implement even if it is based on the technical basis of Europe and the United States, for example, the excellent value of thermoelectric materials, one of the core of the plan, has not broken through for 40 years, and the data selected by Xiaoyuan is likely to be wrong, and the cost of semiconductor power generation materials abroad is also very high, according to Xiaoyuan's plan to improve the old tank is not as good as purchasing a new generation of tanks from Europe and the United States。 ”

Of course, with the continuous development of technology, the efficiency of thermoelectric materials will be broken by scientists sooner or later, and the cost will drop to the ordinary level over time. ”

"Old Zhu, do you mean that once the technical conditions are met, from the perspective of engineering application, my plan is completely feasible?" Liang Yuan asked happily.

"There is nothing wrong with the idea, there is nothing wrong with the implementation of the route and the engineering principles, for example, assuming that the level of technical development next year meets the conditions in the document, the plan can be developed and continued as a full-fledged project with great potential. ”

Zhu Yusheng nodded, acknowledging Liang Yuan's brain.

For Liang Yuan, as long as the design ideas are correct and not deviate, everything else is a trivial matter, Liang Tuhao wants money and money, people and people, and technology, as long as the direction is right, he doesn't play with the outlet.

Seeing that Zhu Yusheng didn't plan to let go of the stealth three-view view, Liang Yuan didn't plan to come back, and said with a smile: "As long as Elder Zhu doesn't think this document is messy, I'll leave it for you directly." ”

Zhu Yusheng shook his head happily, not caring about taking care of someone's mood, and said continuously: "It's not messy, it's not messy at all, Xiaoyuan, let me tell you, this picture in this document is the most valuable, and I'll check it in Baotou when I can't do it, and I can use it right away." ”

Liang Yuan's brain made up for it, and felt that it was not bad for Zhu Yusheng to use the stealth technology on the 99 project in advance, and the high-value sci-fi version of the 99 main battle tank would not only help attract fans, but also the combat effectiveness would not be lower than that of the original.

"I have just been diverted by my whimsical plan, and there is one thing that I have made clear to Zhu Lao in advance, so as not to cause any misunderstandings in the diplomatic field. ”

Zhu Yusheng saw that Liang Yuan was speaking very formally, turned his attention back from the sketch of the PL01 stealth tank on the drawing in his hand, and nodded solemnly to indicate that he was listening.

"Since Brilliance will not receive R&D funding for Pakistan's new tank in the field of power, the connection between the gem power package and Pakistan's new tank project ends here. ”

"Zhu Lao, Zhao Tianshi, the chief technician can testify, Brilliance's decision on Pakistan's new tank project is really in my hands, and I won't hide it from you, old man, the contract between the Ministry of Railways and Brilliance is only a very small part of the gemstone order, at most two years, you will know where the main market for gems is, and the limited purchase quantity of the Pakistani military My mother really doesn't want Brilliance to involve too much energy to deal with it." ”

Although Liang Yuan doesn't know how long the supercomputer will be offline, but he has heard a lot of this kind of talk, Liang Yuan also feels that it is really about to succeed, and it is nothing to have vague news about the future application field of gemstones in advance.

Originally, the matter of the gem on the tank was Li Yuanling's next work according to Liang Yuan's idea of trying to expand the scope of technology application, although compared with the power pack of the Long March III, a lot of improvements should be made, but the technical foundation is ready-made, such as Shangri-La Electric has become a giant in the air purifier industry in the North American market, and is now moving towards high-grade food, electronics, Medical and other air purification directions are deep, and the problem of dust and sand prevention relative to tanks is just within its own field, although the number of purchases from Pakistan may not be much, but it is completely a way to take this job, not Li Yuanling has become interested in this field.

Now listening to Zhu Yusheng talk about all the things in the 866 Institute, Brilliance will naturally not waste resources because of an unappreciated project, even if Liang Yuan draws a clear line, it will become Li Yuanling's first choice, and even further focus on Li Yuanling, who has focused on the new fan, and it is also okay to cut this project directly.

"Of course, I have just read the plan for you, and what I said about Brilliance continuing to invest in this field is also true, in the name of the 59 reform project, not in the name of Pakistan's new tank, if Pakistan does not choose the gem power package to do everything, if Pakistan intends to apply the gem power package to the new tank, it can only be discussed by Pakistan itself to the civil aviation import and export company, in order to avoid involving Brilliance's research and development energy, the export business agent of the gem power package will be given to the civil aviation import and export company. ”

Liang Yuan directly broke off with North Industries, cut it, and then lost the project to the civil aviation import and export companies that had been in business with Yuanjia for two years.