Chapter 989: So Horriblejpg

Chapter 989 Horror.jpg

After Wen Xueyou finished his last page of PPT, he turned around and stood on the podium to look around.

Below, a group of technicians from the navy and other fields either bowed their heads in thought, or kept nodding, or wrote furiously...

In short, they all showed a very serious attitude.

Obviously, his round of introduction was effective.

Seeing this scene, Wen Xueyou couldn't help but breathe a sigh of relief.

He put his hands behind his back, with a feeling of looking down on the world.

Although the foundation of GT25000 is indeed not as good as QC300, this is mainly reflected in its design as an industrial gas turbine.

Whether it is power generation or pipeline power, there is no need to pursue extreme compactness.

After changing to marine power, this aspect has become a shortcoming that is difficult to optimize.

However, Wen Xueyou feels that, not to mention the future, he has taken over the power system of the subsequent 052 series ships today, and there should be no big problem.

On the one hand, the performance of GT25000 is not bad, and it also has considerable upgrade potential, which is completely sufficient for the 052 series.

On the other hand, it is more important.

He has seen the gas turbine designed by 606 for the 054 frigate based on the turbojet 14.

From a technical point of view, it is indeed close to impeccable.

But it can be seen that the other party is still designing the gas turbine with the same idea of ​​designing aero engines.

For example, in order to improve the fuel economy under normal conditions, a relatively low design point speed has to be selected, resulting in a certain impact on the maximum power and speed corresponding efficiency.

It is for this reason that he specifically mentioned the casing adaptive processing technology that can broaden the working range today.

After all, even if it is a diesel-fuel alternating power system, the gas turbine cannot always maintain a high speed.

Cruise diesel engines can generally only provide a speed of just over 10 knots, and if you want to go faster, whether it is 20 knots or 30 knots, you have to start the gas turbine.

With this idea, Wen Xueyou slowly walked down the podium amid a round of warm applause.

Even on the way back to his seat, he took a detour and passed by Yan Zhongcheng.

It turned out that although he was also writing down something, the content was not quite what he imagined.

Although he just walked by, Wen Xueyou still caught a glimpse of one of the contents with his excellent dynamic vision.

"The casing treatment has little effect on the core part of the whole machine, and the effect is poor compared to the xxxx technology..."

"Can we consider combining casing adaptation with xxxx technology?"

"..."

"Hiss..."

Wen Xueyou almost subconsciously held his breath.

Yan Zhongcheng's handwriting was flying and flamboyant, and the time was short, so many of the handwriting could only be half-recognized and half-guessed.

But everyone was engaged in combustion engines, and most of the content was not difficult to guess.

Only the xxxx technology was completely unrecognizable.

Wen Xueyou spent a few seconds picking out all the special terms in his mind and comparing them, but he couldn't find a single one that matched.

Now, he, who was full of confidence just now, finally realized that something seemed to be wrong.

Regardless of what the xxxx is, the purpose of the other party taking notes does not seem to be, or at least not just as he thought before, to learn ideas.

Rather, it is more like...

preparing countermeasures.

This countermeasure is not even something that was thought up temporarily.

It was prepared in advance.

Yan Zhongcheng would not make up a technical term to deceive everyone, right?

In this way, when Wen Xueyou sat back in his seat, a thin layer of sweat even appeared on his forehead.

He didn't even hear an engineer from Shanghai 711 Institute asking technical questions.

It wasn't until the other party called him again that he reacted.

711 Institute is responsible for the research and development of marine diesel engines.

It's just that it's not a cruise main engine, but an auxiliary power generation engine.

"Mr. Wen."

The other party leaned over:

"Is it possible that the technology you developed can be used in the intake rectification of internal combustion engines?"

Wen Xueyou had to briefly shift his attention away from Yan Zhongcheng:

"Of course there is no problem in theory, but I remember that internal combustion engines do not rely on airflow characteristics like gas turbines. As long as sufficient intake volume is guaranteed, it will be fine..."

"Of course it is usually true, but if it is a diesel engine equipped with a sequential supercharging system, some adjustments to the airflow must be made in some special cases, but it does not need to be as precise as you do with steam turbines..."

"..."

Just as the two were discussing the issue, Yan Zhongcheng had already stood on the podium.

The slightly noisy conference room just now became quiet again.

"I just listened to Mr. Wen Xueyou's introduction, which was very beneficial to me..."

After a brief opening speech, Yan Zhongcheng directly praised Wen Xueyou.

However, in the latter's opinion, this praise seemed to be somewhat weird, and even gloating.

This made him frown.

The inner uneasiness became stronger and stronger.

"Compared to the GT25000, which is already very mature and has even been installed on a ship for sea trials, our QC300 should be considered a new face for our colleagues in charge of power system research and development."

Yan Zhongcheng's tone was a little bit smiling at the beginning, but he immediately changed the subject:

"However, judging from the performance indicators alone, the comrades in the navy may feel a little familiar..."

He turned the PPT to the second page.

It was a very detailed performance data table.

The content was naturally what Chang Haonan had said before.

QC300 has not yet officially entered the research and development stage, so it is naturally impossible to have details such as the power-speed curve.

However, for the current situation, it is enough.

Almost at the same time as the table was released, several exclamations were heard in the venue.

It was not because of basic data such as power and efficiency--

Although these data are also dazzling, Chang Haonan had already painted a pie when the Aviation Power Group was established.

It is a part that everyone has been mentally prepared for.

The key is the characteristics of this model.

Size, weight, box-type design, and some modular ideas.

Even laymen can see at a glance that the QC300 and the core engine are very different from the TF39 in structure and have no technical lineage connection.

But for installation, use and maintenance, the shadow of LM2500 can indeed be seen.

This is also the suggestion given by Chang Haonan a few days ago-

For the Chinese Navy, LM2500 is the undisputed white moonlight as a ship power.

If the acquisition channel had not been locked, there would probably be no GT25000 later.

Although QC300 is not LM2500, it can be benchmarked in all aspects, and even exceeds the LM2500+ that has just been installed on the ship in key indicators.

Even from the perspective of sentiment, it has enough lethality.

After a deliberate pause, Yan Zhongcheng continued to use his big move:

"Comrades should know that the WS-10, which I am responsible for designing, has been installed and put into service on the J-10A and J-11B models, and officially passed the production finalization at the beginning of the year. It took less than five years from the start of the project. Therefore, there is actually no need to worry too much about the R&D cycle of QC300..."

"At present, the first two 052C destroyers are close to launching, but as far as I know, there is no clear plan to build subsequent ships. From the timetable, QC300 can completely catch up with the progress of subsequent ships and even subsequent models..."

For the navy, this sentence is absolutely lethal-

The speed at which China's aviation equipment has been updated in recent years is seen by everyone.

It can even be said that the reason why the navy has the idea of ​​continuing to improve the 052C is largely influenced by this...

Or stimulated by this.

Now that Yan Zhongcheng directly pointed it out, he naturally gained a lot of recognition.

As for the minor details in this passage, such as "Turbofan 10 is under the overall responsibility of the 606 Institute", no one cares about it.

Wen Xueyou sat in the audience and adjusted his posture awkwardly.

He knew that if he only judged from the current situation, the opponent could only have some advantages in the scene at most.

Relying on mobilizing emotions and playing the emotional card, you can win for a while but not for a lifetime.

After all, when the final selection is made, everyone has to come up with a detailed technical plan.

But the words that Yan Zhongcheng just wrote in the notebook made him feel uneasy.

Thinking of this, Wen Xueyou's eyes moved away from the curtain in front of him and turned to Yan Zhongcheng's seat just now.

The notebook was quietly placed on the small table next to it.

At the same time, Yan Zhongcheng's introduction happened to come to this part.

"In fact, after the QC130 was finalized, we also summed up a lot of experience and lessons from it..."

He certainly couldn't say that he had just found Chang Haonan two days ago to cram, so he had to push the source of this technical idea to the reflection on QC130.

However, this explanation is almost perfect, and people who don't know the inside story can't find out where there is a problem.

"This includes what Mr. Wen just mentioned, that ship-borne gas turbines need to work at a speed far lower than the design point for a long time, so special attention should be paid to the actual performance under low working conditions..."

Hearing this, Wen Xueyou's heart suddenly tightened.

He knew that the key point was coming.

"In order to fundamentally solve this problem, we plan to use multi-stage adjustable stator matching technology on the high-pressure compressor of QC300 to ensure its stability and high performance under full-operation conditions. The basic principle is to select different stator attack angles and blade tip clearances according to the intake flow characteristics of the compressor at different speeds..."

"..."

With a "click--" sound.

The pen in Wen Xueyou's hand fell.

He now realized that the "xxxx" that he couldn't understand before was actually the four words "adjustable static blades".

Obviously, he still greatly overestimated the negative impact of inexperience on the other party.

Or, he greatly underestimated the other party's ability to correct its own mistakes.

In the areas where QC130 was not perfect, the 054's trial has not yet begun, and others have already begun to adjust.

It can almost be said that the celebration banquet and the reflection and summary meeting were held together.

Such efficiency, and such execution...

A sense of crisis suddenly surged in his heart.

"What a terrible opponent..."

He bent down to pick up the pen, thinking silently at the same time.