Technological power starts with upgrading lenses

The efficiency of Zhuozhiowen is quite high.

Early the next morning, he returned to Dongyang with the licensing contract and technical information he had just signed. Kang Chi, who had received the Blue Arrow Aerospace technical information, immediately started studying eagerly.

In fact, liquid oxygen and liquid hydrogen engines have always been considered a relatively mainstream rocket engine. Although China Aerospace focuses on liquid oxygen and kerosene, liquid oxygen and liquid hydrogen are also studied.

But they are the national team after all. Not only is the technology transfer process not as direct and efficient as that of private companies, but they also have to owe favors to others. If not, they may even be criticized. So Kang Chi decided to spend a little money and went out of his way to buy liquid oxygen. Let’s learn more about methane engine technology...

…

Since the two teams of Academician Fu and Yan Hui are currently in the design and development stage of technology, Pangu Base has had a rare moment of leisure during this period.

However, after Kangchi digested the technology of the Tianque 12 engine and redesigned a rocket engine using liquid oxygen and liquid hydrogen as fuel according to its own needs, the manufacturing equipment at the Pangu base quickly became busy.

Of course, in addition to the Pangu base, Datang Heavy Industries and its huge supply chain also joined in the manufacturing of this engine prototype. However, what they obtained were only parts drawings, and they did not even know what the parts were made for... …

[Item: Medium-sized liquid oxygen and liquid hydrogen engine]

[Manufacturer: Kangchi]

[Item Level: 1]

[Experience: 0/50000]

[Item status: intact]

[Item parameters: sea level thrust 152.8 tons, specific impulse 323 seconds, total mass 1.2 tons, thrust adjustment range 80%-100%, operating life 50 minutes]

[Analysis items: no analysis items]

[General experience: 12433435]

[Mastery Points: 107 (+45)]

Kang Chi was slightly relieved when he saw the system pop-up panel, but after carefully looking at the parameters on the panel, he couldn't help but frown.

This engine with a diameter of 1 meter and a height of 2 meters was named 'Tongtian No. 1' by Kangchi. It looks quite simple in appearance. The outer shell is not sprayed with protective materials and coatings, and the sparse solder joints are clearly visible.

Although it looks ugly, the system panel can pop up, which means that the engine can at least ignite smoothly. However, judging from the parameters, it obviously has quite a big problem.

The thrust at sea level is 7.2 tons less than Kangchi expected.

The specific impulse of 323 seconds is also far lower than the perfect theoretical specific impulse of 463.1 for liquid oxygen and liquid hydrogen...

This means that for every ton of fuel consumed by this engine, it can produce 1 Newton of thrust for only 323 seconds. If a rocket is built with an engine of this performance, the payload will become very low.

If we compare the Raptor 3, the world's most advanced rocket engine, the performance of the two engines is not at the same level at all.

The specific impulse of Raptor3 is 350 seconds, which doesn’t seem much higher. But the problem is that Raptor3 is a liquid oxygen methane engine, and the perfect theoretical specific impulse of liquid oxygen methane is 379.

In other words, Raptor3 is almost close to the theoretical limit of liquid oxygen methane engine combustion efficiency.

More importantly, the operating life of this thing made by Kangchi is only a short 50 minutes...

If one flight takes 30 minutes to calculate, as long as it is launched once, even if it is recovered, it will be a semi-waste product.

Kang Chi pondered for a long time, and his intuition told him that it should be caused by incomplete technical changes in fuel types, but he couldn't figure out what exactly went wrong.

But he never makes it difficult for himself when he doesn't understand things.

Anyway, this engine is just an upgraded prototype. With the system in hand, any problem can be solved after the upgrade. The specific problem will be known after analyzing it.

upgrade!

General experience-50000,

General experience - 150000,

General experience - 450000,

General experience - 1350000,

"This type of engine has been upgraded to full level."

With two million general experience invested, the engine flashed four times and was directly upgraded to the full level.

Fortunately, Kang Chi went to Datang Heavy Industry again during this period to inspect the company's equipment status, otherwise not even an engine would be able to be raised.

After the system upgrade, not only the shell of Tongtian No. 1 has become very simple and beautiful, but the various pipelines inside are also neat and orderly. The unique mechanical beauty can definitely satisfy the obsessive-compulsive disorder, and the volume has basically remained unchanged.

[Item: Oxygen and hydrogen ultra-low temperature engine]

[Manufacturer: Kangchi]

[Item level: 5 (full level)]

[Item status: intact]

[Item parameters: Sea level thrust 350 tons, specific impulse 460 seconds, total mass 0.95 tons, thrust adjustment range 10%-100%, operating life 2000 hours]

[Analysis item: parsable]

[General experience: 10433435]

[Proficiency Points: 107]

Good guy,

It is indeed an engine that has been upgraded to the full level!

Looking at the engine parameters on the system panel, Kang Chi's eyes widened in shock.

It is hard to imagine that such an engine with a diameter of only one meter and a total mass of less than one ton can produce a full 350 tons of thrust!

Tongtian-1 has a diameter 0.3m smaller than Raptor 3, but it has a thrust of 70 tons more!

It's simply amazing!

Of course, this is actually closely related to the type of fuel.

The specific impulse of liquid oxygen and liquid hydrogen is 22.16% higher than that of liquid oxygen and methane. In other words, under the same technology and specifications, the efficiency and thrust of liquid oxygen and liquid hydrogen engines are naturally higher than those of liquid oxygen and methane.

However, this is only the first parameter, and the following parameters are the real heavyweights!

Tiantong-1 has a specific impulse of 460, which is almost the same as the theoretical specific impulse of liquid oxygen and liquid hydrogen. It can almost perfectly utilize every portion of fuel input to it, and in this case, it can also achieve a large range of thrust adjustment of 10%-100%!

And the thrust adjustable technology is actually the key core of reusable rocket technology!

With an engine whose thrust can be adjusted so flexibly, Kang Chi even wondered if the balance system of Yinhe could be slightly improved to be used to recycle rockets made with this engine...

In addition, this engine has a service life of up to 2,000 hours, and can complete at least 4,000 round trips to low-Earth orbit, which also made Kang Chi completely relieved.

The Sky Plan is already stable!

Whether it is a car, an airplane, a ship or a rocket, the most critical and core is always the engine. It can be said that with this rocket engine, the progress of the Sky Plan has been completed halfway at the beginning.

As for the remaining half, there are actually no major technical difficulties. The difficulties are mainly concentrated in the engineering workload of design and manufacturing, which can be piled up with time and money.

In addition, Kang Chi also noticed that the name of this five-stage engine has actually changed,

especially the keyword: ultra-low temperature!

As we all know, the storage link of liquid hydrogen is minus 253 degrees and the boiling point is minus 183 degrees. Therefore, low-temperature engines usually refer to engines that use liquid oxygen and liquid hydrogen as propellants.

But why does the system call it a cryogenic engine...

Could it be that this thing is not burning liquid oxygen and liquid hydrogen, but solid oxygen and solid hydrogen with lower temperatures?

Thinking of this, Kang Chi became even more excited. After a simple study, he opened the analysis panel and prepared to conduct a technical analysis of this engine.

However, the total requirement of 190 mastery points made him stunned.

It is worthy of being the pinnacle of oxygen-hydrogen engines!

Facing a mastery point gap of 83 points, Kang Chi had to choose to analyze in batches.

Every time a technology is analyzed, he immediately starts to manufacture related supporting manufacturing equipment, accumulating mastery points in the process of rubbing the equipment, and then continues to analyze...