Li saipu replaced Zhao Hanyuan as president of Chongshi Research Institute, which aroused many speculation. A person who has served as president since the beginning of his establishment has made great achievements. After three Nobel laureates appeared in the hospital, he resigned. Although the level remained unchanged, it was still incomprehensible.


    Long Jianhua didn''t explain. Life is your own, don''t care what others think.


    He didn''t have time to explain. Although gallium nitride and graphene have been successful, he has also withdrawn his main energy, but he still needs to continue to pay attention; Mechanical design and materials are his next direction, which requires more energy; Although Chongshi group and bank group will not participate in the daily management, they cannot fall behind in the general direction and daily monitoring; We also have our own capital operation. We have to communicate with Kang Liwei and Yuan Fanqi several times a month. Therefore, he is even busier


    Zhao Hanyuan didn''t say much, but after the handover, he explained to the media who came to interview: there is a conflict between management and scientific research. He has been the president for so long. It''s time to concentrate on scientific research.


    After Zhao Hanyuan resigned as president, the engine research progress was like opening plug-ins. New schemes were put forward one by one. Different types of engines began to appear, from small to large, from energy-saving to 4000 horsepower, and six kinds of engines appeared in less than a year


    When demonstrating the rocket engine scheme, more than 80 people from the disciplines of machinery, materials, chemistry and thermodynamics participated, and long Jianhua was also one of them.


    After listening to the introduction of the team, one by one began to put forward their own questions or ideas on issues of concern in their professional field.


    Someone asked, "why is the inner surface of the engine rough and bad like a mirror?"


    The team responded, "this is a new attempt, but it is not without scientific basis."


    He didn''t say the reason directly, but responded vaguely.


    In fact, this is to learn from the experience of the Soviet Union. With the advice of several mathematically good scientists, they used this form in order to make the high-temperature air flow form turbulence near the inner wall and improve the heat exchange efficiency by more than three times.


    Among the engine designers, six came from the Soviet Union, which brought this technical idea.


    This is the benefit of "learning" and the benefit of different sources of personnel. When various ideas come together and various advantages are summarized together, the starting point of research will be improved


    When asked about it, long Jianhua asked, "why not consider liquid oxygen and methane, but continue to use kerosene and liquid oxygen?"


    Zhao Hanyuan should say, "liquid oxygen methane has been tested and put forward by some people in our project team, but it is finally believed that kerosene liquid oxygen is the fastest way to shape the engine as soon as possible."


    A chemist shook his finger. "I have the same question. Compared with other fuels, methane has the least coking, much higher cooling performance than kerosene, low viscosity, less carbon deposition and high theoretical specific impulse, which are summarized by American rocket engineers. "


    "I think that since we have been involved in this field, we should set a benchmark, which can not be measured by speed."


    This was what long Jianhua wanted to say, but he took the lead.


    Zhao Hanyuan wanted to, but he wanted to make some achievements quickly, so he was eager for success when the project plan was finalized.


    Another member of the project team argued, "kerosene LOX engine has been proved to be very successful and is the mainstream at present. For this engine, we have adopted a number of our own technologies and some of the latest achievements in the world; For the methane liquid oxygen engine, I think we can take it as the next research project. "


    Long Jianhua looked at him steadily.


    This way of thinking is not in line with the model of the rebirth Institute. Here, there is no stereotype. As long as others have reasonable new ideas, they should refer to them and demonstrate them, not sophistry.


    Zhao Hanyuan glanced at the man and said faintly, "in fact, methane liquid oxygen scheme is also one of our first options. It was only during the internal demonstration that the new engine could be launched faster. "


    Long Jianhua said slowly, "for kerosene LOX engine, I wonder if you have considered any adverse factors. Sulfur in kerosene will increase carbon deposition. I think the main reason why the American technical standards limit the pressure of the combustion chamber is that they have not found any problems. "


    "Therefore, when we consider this engine, we should not only consider whether it is mature, but also consider the long-term development in the future. If there is no sulfur in kerosene, this can be considered; If we can''t do how to deal with sulfur, the kerosene scheme can never be adopted. "


    This sentence is tantamount to rejecting the kerosene plan.


    He is an honorary president and a contributor. His words have absolute weight compared with others.


    Moreover, what he said was something that the people present had not yet learned.


    Zhao Hanyuan nodded, "OK. We abandoned the kerosene scheme and used other fuels instead. This time we considered methane and will continue to study unsymmetrical dimethylhydrazine and liquid hydrogen in the future. "


    After this problem is settled, we will discuss other problems


    After the meeting, Zhao Hanyuan found long Jianhua and said shyly, "President long, I''m a little anxious for success. Originally, we also found the problem of the American Standard, but in order to achieve results as soon as possible, we did not go deep into this aspect. "


    "Gao Dacheng''s justification is also to achieve results as soon as possible. In fact, he was originally the proponent of the methane scheme and was persuaded by other team members. "


    Long Jianhua was noncommittal. "What we pursue is not to occupy a certain height overnight, but to continue to step higher. We have come this way before, but we still insist on it now, and we will go this way in the future. "


    Zhao Hanyuan was embarrassed. "Speaking of it, the main responsibility lies with me. I''m eager for quick success and instant benefit."


    Then he mocked himself, "I can''t hold my breath when I see the new achievements of other research institutes one by one. When the Dean, there was no such mentality; As a result, as soon as we sink into practical work, there is such a heart of comparison. "


    "It seems that if you want to make some achievements, you must first adjust your mentality."


    Long Jianhua asked with a smile, "did you come up with the plan of milling groove and brazing outer wall?"


    He shook his head. "This is the technology of the Soviet Union, which has been proved successful in practice. The technology hasn''t completely flowed out, only because our team has talents from the Soviet Union, so we know. Those designs were calculated by mathematicians and physicists in our institute, and the thermal conductivity of the combustion chamber wall was greatly improved. "


    Long Jianhua nodded. "It seems that we are right to recruit a large number of Soviet researchers."


    Zhao Hanyuan laughed, "we took the right step. Many researchers have made good research results. "


    Then he sighed, "now it seems that I still can''t stick to my heart and take advantage of the situation. I just want to see the so-called results quickly."


    Long Jianhua said with a smile, "it''s not too late to think of it now."