Chapter 165: Full Afterburner (8/13)
Wang Bu'an was generous.
The raw materials used to make the turbofan 6 engine are all very high-grade.
Either tertiary titanium.
Either it is a tertiary high-temperature corrosion-resistant alloy.
Even the small ceramic insulation, or rubber seals, are above grade 3.
If you want to do it, do the best.
This is Wang Buan's innate obsessive-compulsive disorder.
So-so drumming out a turbofan 6, casually intersecting, is definitely not his style. If you do it badly, you might as well not do it.
All raw materials can withstand temperatures of more than 7,200 degrees.
What is a little 1400 degrees?
7000 rpm
8000 rpm
This is the limit of the turbofan 6 design.
It's also the time when it's at its wildest and toughest. At this moment, the power it burst out is the strongest. Unless the afterburner is turned on.
Even from a distance of 100 meters, a strong jet of air flow from the tail can be felt.
One hundred and fifty meters away, there is no way to stand.
At a distance of 200 meters, a living person can be burned by the temperature of the air current.
However, there are no thrust readings yet.
The thrust test system is not connected at all.
Chen Daguang felt that it was not necessary.
You pass the most brutal test first.
He decided to change the order of the tests.
He wants to teach Wang Buan a little lesson.
Otherwise, this little guy's tail would have been warped out of the clouds.
"Prepare for afterburner testing. ”
"Okay. ”
Others are moving their mouths, and Zhao Ce and others are going to break their legs. They need to be more prepared.
The turbo has the highest rotational speed, not afterburner.
What is Afterburner?
It is to inject fuel into the air stream of the engine. Due to the high temperature of the gas stream, the fuel burns instantly, expanding extremely to create additional thrust.
Generally speaking, the higher the pre-turbine temperature of the jet engine, the greater the thrust of the engine, but due to the turbine working environment, it has to withstand both extremely high temperature and huge thrust, therefore, due to the limitation of the material of the turbine, the general pre-turbine temperature can only reach about 1650. However, this still could not meet the thrust needs of military engines, so an afterburner was added after the turbine and re-fired to increase the thrust. There are no rotating parts in the afterburner, so the temperature can reach about 2000, which can increase the engine thrust by more than 150 in an instant.
Because the gas it uses is the exhaust gas after combustion in the combustion chamber, the oxygen content has been reduced, so the efficiency of the afterburner is not high, the fuel consumption is huge, and the fuel carried by most aircraft will only be enough for the afterburner to be used for a few minutes. As a result, afterburners are generally only used for a short period of time when the highest thrust is required, such as taking off on an aircraft carrier, breaking the sound barrier for supersonic flight, or fighting a fighter jet. Refer to the movie to delve into the footage of the missile attack behind enemy lines
The original MiG-25 fighter relied on the afterburner to easily break through Mach 3, so that the missiles of a certain country could not catch up, and suddenly shocked the Western world, thinking that the Soviets had invented some aerial artifact, causing the Western world to be shrouded in the shadow of the MiG-25 for ten years. However, after the MiG-25 turned on afterburner, the life of the engine was also over. When you land, you have to replace the engine.
Due to the low fuel efficiency, few civil aircraft use afterburners. The only civil aircraft with afterburners are the Concorde and the Tu-144 supersonic airliner, which have been eliminated. The supersonic flight of a civil airliner, for the time being, can only be a dream.
The brutal test was to run at full afterburner for 10 minutes.
The more brutal test was a 20-minute run with full afterburner.
The most brutal test was 30 minutes of full afterburner.
Basically, after the tests are done, the engine is finished. All parts are going to be scrapped.
"How long is it set?" Zhao Ce asked in a low voice.
"30 minutes. Chen Daguang said expressionlessly.
Cheng Kailong frowned.
This is obviously to give Wang Bu'an a dismount.
It came up to be the most brutal test of 30 minutes. Will the freshly baked turbofan 6 be able to withstand it?
The other engines are all coming step by step.
Try it for 10 minutes first.
At the end of the test, look for the damaged part.
Repeated testing, repeated search for damaged parts. Then targeted reinforcement.
When the quality of the parts has improved and there is a certain degree of certainty, we will try to impact the 20-minute test.
Basically, being able to pass the brutal 10-minute test shows that the engine has good potential.
It is impossible for an ordinary fighter to be fully empowered for more than 10 minutes.
Even if the engine can stand it, the fuel consumption can't stand it.
It seems that a fighter like 15 carries only 6 tons of fuel at most.
If it is in full afterburner, it is estimated that it will be used up in less than 5 minutes. Even a country like US imperialism cannot afford it.
The MiG-31 is the fastest flying workhorse fighter in the world today, with a maximum speed of Mach 285 and the ability to carry 16 tons of fuel. If it is in full afterburner, it is estimated that it will only last for 10 minutes. It can be seen that in the case of full afterburner on, the fuel consumption of the engine can be said to be very terrifying.
You know, that's basically direct fuel injection!
A large amount of oil is injected directly into the red-hot air stream.
Spray as much as you can.
Spray as fast as you can.
The 30-minute full afterburner test is basically for scrapping the engine.
Anyway, the previous tests are almost scrapped, and I don't care that the last one is completely scrapped.
At this stage, the most nervous is Sun Chaosheng.
The 771 Research Institute, which he leads, specializes in the study of high-temperature corrosion-resistant alloys.
Previously, he had already received a part of the high-temperature corrosion-resistant alloy. Tests have shown that the properties of these high-temperature corrosion-resistant alloys are indeed very good. Able to withstand high temperatures above 3000 degrees. However, due to procedural problems, it has not yet been truly applied to the manufacture of aero engines.
In the end, it was Wang Buan who took the lead.
There is no doubt that the turbofan 6 in front of you is definitely using a new type of high-temperature corrosion-resistant alloy. Withstands very high temperatures.
Sun Chaosheng can basically conclude that the 10-minute brutal test is no problem.
Theoretically, the temperature of the afterburner is about 2000 degrees.
However, theory is theory, and reality is reality
Everything depends on the trial data.
If the turbofan 6 successfully passes the test this time, he will be able to let his hands and feet go.
What Taihang, what Kunlun, all domestic aero engines, will use a large area of new high-temperature corrosion-resistant alloys provided by Wang Buan.
"Comrade Xiao Wang. Sun Chaosheng looked for an opportunity to quietly greet Wang Bu'an alone.
"Professor Sun. Hello. Wang Buan responded politely.
"Are you sure?"
"Yes. ”
"How many percent?"
"One hundred percent. ”
"Good. ”
Sun Chaosheng nodded with satisfaction.
That's what he would most like to get. Hopefully, the end result will be the same.
In fact, Sun Chaosheng also suffered a certain amount of pressure. He also wants to promote high-temperature corrosion-resistant alloys. The problem is that these high-temperature corrosion-resistant alloys are all three-no products.
Including himself, there is no way to fully prove that those high-temperature corrosion-resistant alloys can be used in aero engines smoothly. After all, an aero engine costs millions of dollars. If there is not enough theoretical verification and insufficient experimental data, it is impossible to try it easily. The procedure must be followed in accordance with the regulations.
Only a halfway monk like Wang Buan, a guy who doesn't play cards according to the routine at all, can mess around.
The test of turbofan 6 is undoubtedly a big test of new raw materials.
All raw materials from the Tyrannosaurus rex industry will be given the opportunity to show their faces.
If the trial is successful, Tyrannosaurus Rex Industries will become famous.
If the experiment fails, then
"It's been two months, and it hasn't been applied to practice?" Wang Buan asked Cheng Kailong in a low voice.
"Do you think you can use it if you want to?" What if you use it wrong?" Cheng Kailong said seriously, "Of course, there are strict regulations. It must be fully verified to ensure that nothing goes wrong. ”
Wang Buan shook his head slowly.
Cheng Kailong is not wrong. Seek stability. It must be steady.
You can't make mistakes easily.
This is the attitude of all institutes.
It cannot be said that this philosophy is wrong. However, don't we talk all day long, leaving us with little time?
I knew that I would have gotten a few big guys out in advance.
Thankfully, it's not too late this time
The turbofan 6 must be fired. It must also be fought loudly. Let the relevant executives know.
He deliberately glanced at Miao Yongfeng.
Miao Yongfeng also hated him and glanced back at him. No signs of weakness.
Wang Buan squinted at the other party, the corners of his mouth turned up slightly at a forty-five degree angle, and said meaningfully: "Professor Miao, how do you think your eyesight?"
"Of course my eyesight is better than yours. Miao Yongfeng said with a tired face, "What are you talking about all this nonsense?"
"Since you have a good eye. So you say, how many minutes can this turbofan 6 last?"
"Five minutes at most!"
"Are you sure?"
"Of course!"
"What if it's more than five minutes?
"You!"
Miao Yongfeng was suddenly forced into a corner.
Others were also secretly surprised. Wang Bu'an: This is a grudge! This is a war!
Just because Miao Yongfeng had a conflict with him, he targeted Miao Yongfeng all the time. Now I haven't forgotten to provoke Miao Yongfeng. There is no one who holds a grudge like this.
In the future, if anyone says that Wang Buan is a person who does not hold grudges, they will definitely spit on each other.
Sure enough, it is "never hold grudges" Wang Buan!
"Professor Miao, let's make a bet. Wang Buan said slowly.
"We are all scientific researchers, and we don't have these low-level interests. Miao Yongfeng replied coldly, "You'd better improve your recuperation." ”
"If the turbofan 6 can last for five minutes. You poke yourself in the eye. If I don't persevere, I'll poke myself in the eye. ”
"Nonsense!"
"Wang Buan, don't come nonsense!"
"Wang Buan, this is not a place for children to play at home!"
The old professors were all angry.
This Wang Bu'an really doesn't know how thick the sky is.
Still poking yourself in the eye?
Do you want to be so insidious and vicious?