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The Third Empire - Chapter 880

Published at 19th of October 2021 11:42:33 AM


Chapter 880: 880

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The whole world War II is an era of rapid development of science and technology. All military related science and technology are developing rapidly.

In World War II, Germany adopted wolf pack tactics, while the Allies reached an extreme in the development of underwater listening equipment. Sonar, a special equipment for detecting underwater sound, developed rapidly and noisy submarines, are often found.

In this way, higher requirements are put forward for submarines.

The XXI class submarine equipped by Germany has been improved. The biggest difference is that it has abandoned the previous ship type and changed to the elongated water drop shape common in later generations. This submarine has excellent underwater navigation ability and is the first submarine whose underwater speed exceeds the surface speed.

The same is true of the nuclear submarine developed from it.

"If it is a diesel electric submarine, the diesel engine is the biggest source of noise. Now we use nuclear power. The circulating pump in the nuclear reactor and the steam turbine behind it are the biggest source of noise. We use various schemes, such as arranging damping bases, to reduce noise."

The speaker is a submarine designer. In the development of this nuclear submarine, all aspects need to cooperate closely. The design of nuclear power is the joint cooperation of nuclear power experts and submarine experts.

"In addition to the noise of the submarine engine, the other main noise is the propeller." At this time, Shrek continued to transform into an expert.

Of course, the designers have noticed this, but they have not found a suitable scheme yet. However, shirek from later generations, of course, knows it clearly.

Now, the hull has just begun to be built, and the propeller and other parts at the tail are not in place. However, needless to see, Shrek knows that it must be the most common kind of three blade propeller.

"If you want to reduce the noise of the propeller, you have to reduce the speed, and if you reduce the speed, the thrust will be insufficient. This solution is to increase the number of blades." "The current three blade propeller is backward. We can change it into a seven blade or nine blade propeller. At the same time, the propeller is also changed into a large side inclined structure," hirek said

With that, Shrek drew it on a drawing in this hot factory.

Propellers are all with odd blades, which is to eliminate the vibration caused by symmetry. At the same time, large sideslope is a scheme to reduce noise.

However, how to skew, especially how to process, is a huge problem. In later generations, it can be realized by multi axis CNC machine tools.

Hilrick just put forward an idea, and then left it to these engineers to figure out what to do. It doesn't have to reach the level of later generations, as long as it is more advanced than now, that's enough.

"As for the hull, I suggest that a layer of rubber silencing tiles can be laid on the hull, which can continue to block the outward diffusion of internal noise. How to make it needs your concerted efforts. It doesn't have to be installed on the current submarine. You can carry out technical pre research to prepare for the later submarines."

"Head of state Chirac, your insight and foresight are admirable." Heisenberg said.

Head of state Chirac is a versatile person. He can put forward unique opinions in any aspect. More importantly, he is completely correct after verification.

The propeller needs experts in fluid mechanics, and the silencing tile needs experts in materials to make efforts according to the direction proposed by Chirac.

Xierik continued to walk on the slipway, watching the sparks of the electric arc and the components of the submarine forming, his heart was filled with emotion.

In addition to attacking enemy warships, nuclear submarines are more prepared for future nuclear bombs.

This is a long road. The test explosion of nuclear bombs will take a few years, and miniaturization will take a long time. Many problems will have to be overcome when carrier rockets are installed on submarines.

However, no matter how much investment, these technologies must make breakthroughs. After all, this is the capital for future generations to dominate the world, ballistic missile nuclear submarine!

Nuclear submarines are brand-new equipment with huge displacement, which will drive the progress of torpedoes, sonar and so on. Germany will continue to make breakthroughs in submarine technology.

"Once this submarine is put into use, it will bring a revolutionary breakthrough. It will sail underwater from leaving the port to returning." Dunnitz sighed: "unfortunately, the cost is too high. If our conventional submarines can also sail underwater for a long time."

The cost is high, and it is doomed that there will not be too many. You know, in dunnitz's plan, his submarine force will have hundreds of.

Before leaving, hearing Dunitz's exclamation, hilrick suddenly remembered another thing, a low-cost submarine transformation scheme, known as AIP technology of nuclear submarines in poor countries!

In fact, as early as before and after World War II, Germany and the Soviet Union were involved in the research of AIP power plant.

For example, in 1935, the 18th Central Design Bureau of the Soviet Union proposed to use the AIP System on the submarine and test it on the M-92 submarine, and obtained a large number of test data.

At the same time, during World War II, Walter company of Germany also tried to use compressed hydrogen peroxide in submarines as an underwater oxygen source for diesel engines.

Conventional power submarines use diesel engines. In addition to diesel, the work of diesel engines is oxygen. Underwater, below the depth of the vent pipe, the diesel engine cannot be started without an oxygen source.

Therefore, as long as oxygen is carried, the diesel engine can continue to work, and the exhaust gas can be discharged out of the submarine to prevent suffocation of personnel in the submarine.

Carrying only ordinary oxygen requires a huge volume. Therefore, liquid oxygen can be carried to reduce the volume and increase the range.

However, it is not easy to obtain liquid oxygen, and it is also difficult to store it at low temperature.

In this way, the alternative to liquid oxygen is hydrogen peroxide, which can be decomposed into oxygen and water. When the submarine is running underwater, hydrogen peroxide is heated by the heat energy of the diesel engine, and then oxygen is produced to supply the diesel engine. Later, Germany built a few such AIP submarines.

However, Shrek doesn't like this kind of thing because hydrogen peroxide is extremely unstable when converted to oxygen!

From a technical point of view, improvements can be made on the existing submarines, even as long as a cabin is inserted and hydrogen peroxide tanks are added. However, xierik doesn't like this technology. Submarine soldiers risk their lives to perform tasks, let alone increase unsafe factors.

Therefore, it is better to choose the technical scheme used by later generations of Huaxia.

"Everybody, have you heard of Stirling engine?" Said Shrek.




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