Doomsday Bunker Upgrade Chapter 435: Ion thruster

The task of researching and developing the new aircraft made Chen Xin very interested.

For him, coming up with a new plane only depends on whether his imagination is rich enough, not on other conditions.

Insert an app: a perfect replica of the old version of the book-chasing artifact, an app that can be sourced--Mimi Reading.

However, Chen Xin can't open his mind too much. After all, he has to consider the problem of actual production. Even if Chen Xin can make the X-wing starfighter in "Star Wars", the country can't even make a lightsaber. .

This is the gap between the industrial system and the overall technology, which cannot be made up by simply relying on Chen Xin's opening.

So, even if Chen Xin wants to design a new fighter jet, he must consider the country's industrial production capacity. In addition to design problems, whether a new fighter jet can be built is also affected by many factors such as cost and technology. .

This also leads to Chen Xin not using too exaggerated technology, it is better to design and develop on the basis of existing technology.

For Chen Xin, it is very easy to make the design of the new aircraft advanced. After all, there are so many science fiction works, just copying any one can be done by relying on the system.

But to make the new aircraft more realistic and less advanced... it takes some thought and design.

Fortunately, the place where Chen Xin is at this time is the temporary capital of the Yan Kingdom. There are a lot of scientific research forces and related materials here, and Chen Xin has the right to call these materials.

Chen Xin certainly couldn't understand the specific scientific research materials, but let people sort out a technical catalog and introduction that Yan Guo can use in the field of aircraft manufacturing. Chen Xin can still find what he wants. .

The most important thing in an airplane is of course the engine known as the heart.

In those days, Yan Guo was not able to be sprayed with fighter jets. The biggest problem was the performance of the engine and its production and R&D capabilities. It was a huge regret for Yan Guo in the aviation field that there was no independent research and development and reliable performance of the engine.

After the efforts of countless people, Yan Guo finally made a breakthrough in this field, and the manufacture and research and development of the engine finally achieved fruitful results.

However, for the new aircraft, Chen Xin does not intend to use existing aircraft engines.

The reason does not need to be repeated. Chen Xin is optimistic about the electric propulsion system originally used in the aerospace field, also known as the ion thruster.

In simple terms, it is to electrolyze the working fluid into charged particles through electrical energy, and then obtain thrust by accelerating the charged particles.

This is also a relatively common engine in science fiction works. It is usually used in space vehicles, and it is not considered to use this thing in the atmosphere.

This is mainly because the thrust produced by the ion thruster is too small, or the power is too high.

Ion thrusters can accelerate charged particles to tens, hundreds of kilometers per second, or even higher. In this case, if a relatively large thrust is to be generated, the power required by the ion thruster will be very high. Huge, but also requires an equally huge amount of energy to drive it.

According to the current relatively mature technology on Bluestar, if the power of the ion thruster is increased to 200KW, it can generate a thrust of about 0.45 kilograms. Although it is inconspicuous in the atmosphere, if it is raised to space Among them, after getting rid of the influence of gravity, this thrust is enough to push a 2-ton weight.

Of course, this is limited by Blue Star's original technological level.

With the nuclear reactor technology currently mastered by the Yan Kingdom, it has been able to provide a micro-reactor with a power of more than 10MW that can be mounted on an aircraft, which is enough to provide sufficient energy for the engine.

What Chen Xin has to do is to reduce the speed of the ion thruster jet, thereby increasing its thrust.

This is the same principle that a jet engine reduces jet speed and increases engine thrust.

Kinetic energy Ek=mv^2/2, momentum=mv, thrust is determined by momentum.

For aero engines, the external exhaust is the lost energy.

When the momentum mv remains unchanged, reducing the exhaust speed can reduce the energy taken away by the exhaust and improve the efficiency.

Similarly, keeping the momentum constant and reducing the exhaust velocity requires a larger mass of the working fluid, ie more air is drawn in.

So in layman's terms, if an aero engine wants to be efficient, it needs to push a lot of air at low speed.

However, for the ion thruster, although the principle is clear, its demand for air, that is, the working medium, is far lower than that of ordinary aero-engines.

The current ion thruster consumes milligrams of working medium per second, and the thrust generated is 0.1 N. If this value is enlarged to the extent that it can meet the thrust requirements required by jet fighters, the Quality consumption is still not worth mentioning.

Taking the Taihang engine independently developed by Yan Guo as an example, its thrust can reach 13.5 tons, which is 132,300 N in cattle, and the corresponding working fluid consumption is about 0.13 kilograms per second.

The consumption of this working medium is definitely not large. The same ethereum engine as an example, its air intake is ~IndoMTL.com~ almost a thousand times that of the ion thruster.

So under the premise that air is also used as the working fluid, the intake air volume required by the ion engine is quite insignificant, even similar to that of an ordinary family car.

As for the power that limits the use of ion thrusters in the atmosphere, it is no longer a problem in the face of the abundant power provided by small nuclear reactors.

And solve the problem of the engine, for an aircraft, the rest is nothing more than some details such as aerodynamic layout and structural design, and these details can be completely solved by the classic physical method of flying bricks. Get rid of.

As long as there is enough power, no matter how bad the aerodynamic layout and structural design are, it can fly, as long as it doesn't fall apart.

Of course, Chen Xin hasn't lost his mind to the point that he plans to do something big, but he still plans to design the shape of the plane.

It's just that as a non-professional, he thinks more about handsomeness than rationality.

Although according to a causality bigwig, better appearance also means more advanced technology, but for ordinary aircraft designers, appearance still needs to accommodate technology.

But for Chen Xin... With a system, he can also go supersonic even if he builds a Gundam, so in the shape design of the plane, he can prefer appearance rather than technology.

After some brainstorming and reference to existing science fiction works, Chen Xin's final design looks more like a space fighter than a fighter used in the atmosphere, although it is very handsome with edges and corners , but not round at all.

And the most important thing is that Chen Xin installed three propellers on the aircraft, two of which are installed on the wings, which is completely different from the existing fighter design layout.