Yuri suddenly rolled his eyes and said, "Didn't we just say that we were going to learn gas turbine technology?"
How did you get to this?
Well, I heard that you China has introduced several LM2500 gas turbines from the United States, presumably Mr.
Shen should know the LM2500 gas turbine technology very well, so what do you say is better than our DA80, I would like to know!
” "Oh, do you really want to say it?"
Shen Huan looked at Yuri with an embarrassed expression, and then turned his head to look at Major Ivan.
"Be sure to say it!"
Yuripi said with a smile, he seemed to have seen this young guy, saying a bunch of ridiculous and wrong remarks, because in his opinion, this Shen Huan only knows a little bit about gas turbines, after all, such a young shipbuilding engineer cannot have a deep understanding of gas turbines, not to mention that the Chinese have not built usable gas turbines.
Major Ivan's face was a little worried, she didn't know why, she was worried about Shen Huan, who had only known her for a while, she was thinking that it might be because she hated Yuri very much.
Most of the Chinese experts such as Zhao Jinfu also showed worries, and only a few experts such as Zhao Jinfu looked at Shen Huan and Yuri with a smile.
Zhao Jinfu knew that Shen Huan would not let him down, because Shen Huan had never lost on any occasion, and of course there would be no exception here.
Shen Huan smiled slightly: "Presumably, Mr.
Yuri also knows very well that the LM2500 gas turbine in the United States is a contract obtained by General Electric on the basis of accumulating sufficient development experience in the development of Lm1500 gas turbines.
It was developed from the largest turbofan engine TF39 in the United States at that time, which was the largest thrust aero engine in the world at that time, and was developed for the C-5 Galaxy heavy transport aircraft. ” Yuri smiled contemptuously and said, "These things, everyone here knows, there is nothing strange about them.
Are you talking about how the LM2500 is better than our GT25000?
I'd love to know this!
” Shen Huan laughed and said, "Mr.
Yuri, don't worry!
In May 1964, the US Air Force put forward a tender for engines in response to the demand for a new long-range heavy transport aircraft, requiring a single unit to have a thrust of 18,000 kilograms.
GE beat the competition the following year and finalized the TF39 engine in October 1968.
Then, after winning a contract to develop a new gas turbine from the U.S.
Navy, GE soon produced the first LM2500 prototype.
This prototype has reached 25,500 horsepower in the test, and the thermal efficiency has also reached 35.5 percent.
All of this is based on the country's strong scientific and technological strength and industrial foundation. ” After a pause, Shen Huan continued: "In the eighties, the US Navy began to develop the Burke-class destroyer, this epoch-making warship, also using the LM2500 gas turbine as the main power, at this time, with the development of new materials and processing technology, the power of the LM2500 gas turbine has increased to more than 30,000 horsepower, and the thermal efficiency exceeds 36%.
Up to now, more than 300 ships in more than 20 countries around the world have been equipped with LM2500 gas turbines, and of course, China has also introduced several and installed them on our new missile destroyers. ” Yuri said noncommittally, "Oh, why don't you continue to use it?"
” It's not obvious that he is slapping Shen Huan in the face, and he is also slapping the face of the Chinese delegation, but Shen Huan still smiled slightly and said: "Mr.
Yuri knows the reason, and he still asks me, what does this mean?"
” Yuri smiled indifferently and said: "Forget it, I won't talk to you, you still want to talk about the performance of the gas turbine in the United States, what is better than our products, I really want to know." ” Shen Huan smiled confidently: "Of course there is no problem, although I did not participate in the introduction and installation of the LM2500, I still know some data, which can also be said."
The compressor of LM2500 gas turbine adopts a 16-stage high-pressure ratio and axial flow single-rotor structure design, which is mainly composed of a compressor front load-bearing casing, a compressor rotor, a compressor stator and a compressor rear load-bearing casing.
The most important is the compressor rotor, which is mainly made of titanium alloy material and A286 alloy steel, and the same is true for the stator.
I don't know what kind of compressor structure GT25000 used yet, but I think it's definitely not as good as the LM2500, right, Mr.
Yuri?
” Of course, Yuri knew very well, and he had to flicker: "This, is it comparable?"
And I can't tell you right now what structure our gas turbines are built on, because it's still a secret. ” Shen Huan smiled slightly: "Okay, then don't talk about this."
Let's talk about the box body of the LM2500 gas turbine, which is not available in GT25000, right?
In the early days, the gas turbine of the ship was like a diesel engine, which was a bare engine, although it was easy to monitor and maintain, but the high temperature and noise of the gas turbine during operation also had a great impact on the environment of the engine room.
GT25000 should also be bare metal, right?
” Yuri snorted and said, "So what?"
Our GT25000 is a generation ahead of the LM2500 in the original design, even if it does not use a boxed body, it will not be worse than the LM2500 of the United States, not to mention that you can't buy the LM2500.
You have no choice but to beg us!
” Shen Huan couldn't help but laugh anymore: "Really?
Can you find other buyers?
And because of your lack of funds, you haven't done it all now, and even if we buy it back, we have to find a way to improve it.
As far as I know, the thousands of employees of your Shuguang consortium are in arrears of wages, right?
It's not us who are really anxious, it's you!
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” This time really hit Yuri's proud heart, and he suddenly blushed like an enraged rooster, pointed at Shen Huan and said loudly: "You, don't talk nonsense!"
Do you know what you're talking about?
If it affects the deal, you're going to pay for it!
” Major Ivan, who was on the side, hurriedly pulled this Yuri's hand down, and scolded with a frosty face: "Yuri, are you crazy?
Mr.
Shen is a guest from afar, how can you talk like that!
” After speaking, Major Ivan hurriedly said to Shen Huan: "I'm really sorry, Mr.
Shen, don't take it to heart, I apologize to you on behalf of Yuri!"
” Shen Huan smiled slightly, and said tolerantly: "Major Ivan, you don't need to apologize for Mr.
Yuri, I didn't take it to heart, and Mr.
Yuri is not rude."
We're fighting, aren't we?
” No, of course, there will be arguments.
The experts from both sides of China and the armed forces present did not say anything, but the experts present could see that this Yuri suffered a small loss in front of Shen Huan, a young Chinese who was not like a speaker, which would cause him to be like this.