Technology Bigshot Chapter 640: ：Inertial kinetic energy drive]
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There is a term in aviation called "bird strike", which means that a bird strikes a human aircraft flying in the air.
Flying birds are a deadly threat to aerial vehicles, and it is common knowledge that everyone knows. Birds are generally small in size and light in weight, and the main damage of "bird strikes" does not come from the birds themselves, but from the ultra-high speed of the artificial aircraft itself.
For example, an aircraft is flying in the air at a speed of 128 m/s. If the aircraft collides with a 500-gram bird, according to the kinetic energy theorem, it will generate about 4000 joules of energy, and this energy is almost in the It is absorbed by the aircraft in an instant, and the parts in contact with the body will be damaged to varying degrees, which often means the disaster of aircraft crashing and killing people.
The speed of the floating high-speed rail has reached an astonishing "subsonic" level of more than 1,200 kilometers, and the destructive power is even more unimaginable. It is not uncommon for birds to strike aircraft.
The track of the floating high-speed rail is set at a low altitude of several hundred meters, and the hazards of bird strikes have to be considered. Even in the ocean, there are a large number of seabirds.
The person who discovered the small details was really surprised, but he didn't show too much surprise. This kind of low-level question is obviously within the scope of the other party's consideration, and he just needs to wait for the answer to be revealed.
However, everyone has guessed, and based on the information fragments they know now, they can roughly guess.
No surprise, it should be a vacuum tube!
On the stage, Ren Hong adjusted the mixed reality projection and said at the same time: "Of course anti-gravity technology is the core technology of the floating high-speed rail, and other corresponding supporting technologies are also the key. The birth of a new transportation system is It takes a long and multi-field technology accumulation.”
"The American technology company et3 developed a 'capsule train' plan for the principle of vacuum pipeline transportation, and one of my partners, Mr. Elon Musk, enriched this concept and proposed a 'Hyperloop' concept, contributed more technical and design details.”
"From another point of view, the floating high-speed rail is actually a luxury upgraded version of the 'Hyper High-speed Rail'. Many key technologies applied to the super high-speed rail will be applied to the floating high-speed rail, but the existing mature technologies , the application on the floating high-speed rail will still be further upgraded, which is in line with the actual requirements.”
“Compared with the single-pipe vacuum transportation pipeline currently operating in Dubai, the floating high-speed rail adopts a composite honeycomb vacuum transportation pipeline.”
The mixed reality image then projected a honeycomb-shaped cross-section of the pipeline, showing an equihexagonal shape. This composite transportation pipeline consists of a total of seven transportation openings, all of the same size. They are separated by more than 10 meters and fixed with trusses.
It's not difficult to understand, if the close contact is too dense, if one of the pipes fails, it will affect the other pipes that were originally intact.
Good guy!
The people present were not surprised when they saw this data, especially the heads of representatives sent from various countries. This composite transportation pipeline has seven transportation ports of equal size. In other words, it can be Let seven floating trains operate at the same time, a 50,000-ton carrying capacity, multiplied by seven, that is a full 300,000 tons of carrying capacity, and a large ocean-going cruise ship is no more than that.
And this guy can be faster than air transport.
Many people also have doubts in their hearts. The honeycomb composite vacuum transportation pipeline sounds a bit tall, but it is just like adding a few more transportation pipelines. This cost problem will definitely be high. Point out?
Ren Hong seems to see the doubts in everyone's heart: "It is worth noting that the floating high-speed rail and the hyperloop look similar, but they are two completely different concepts. The core technology of the hyperloop is still electromagnetic levitation technology. , and the core technology of the floating high-speed rail is anti-gravity.”
"The core concept of suspension is also to set up a special peer environment to reduce contact friction and air friction. The difference is mainly reflected in two points: First, if it is converted into electrical energy for a comparison, then the floating The transportation capacity per kilowatt-hour of the high-speed rail is 150 times that of the super high-speed rail. Second, the floating high-speed rail is much less dependent on hardware than the advanced high-speed rail. We built a seven-port honeycomb vacuum transportation pipeline just for a vacuum environment. , nothing more, so the actual investment cost is just equal to the construction of a capsule vacuum transport pipeline.”
Ren Hong said this, and there was another low-pitched discussion off the field. Obviously, he didn't believe it. He smiled and explained: "The floating train is based on anti-gravity technology, and it is not the use of Electromagnetic levitation system, so our honeycomb composite vacuum pipeline only needs to consider one point: that is to maintain a vacuum environment and be safe and reliable.”
"This means a large-scale cost reduction. Elon Musk's technical team has been able to reduce the ultimate pressure of the vacuum pipe to less than 1000 Pa, an atmospheric pressure equal to 101325 Pa, which is equivalent to removing the honeycomb More than 99% of the air in the ducted enclosure."
“Antigravity is also a big energy consumer, so how can the antigravity device on the floating train obtain power?” Ren Hong asked himself and answered: “Nuclear power, I have a rough data here. The refueling can maintain the basic operation for 15 years, and under the premise of irresistible factors, it can guarantee to meet the demand for 15 years, and the nuclear refueling will not be carried out until 15 years later.”
Nuclear energy is undoubtedly the most efficient clean energy in the world today. It is simply configured for these large energy consumers, such as large power equipment, such as aircraft carriers, etc., all of which are driven by nuclear power.
"Then the question is, the floating train does not have an electromagnetic levitation system, so what is the driving force that drives the tens of thousands of tons of nuclear-powered floating trains forward?" Ren Hong once again threw a question to the audience. .
"Of course, we can use anti-gravity drive, which is theoretically feasible." Ren Hong said, but quickly added: "The cost is too high, to what extent? Drive the train with anti-gravity. Driving would mean that on average we would be refueling every 18 months, which is clearly not desirable even with nuclear power, mind you."
"The main purpose of the anti-gravity device is to levitate the car. It's not bad to use this technology as the core drive, unless the fare is set at $800, but I think customers will be happy to say reject."
A burst of laughter resounded.
"Kinetic energy!" Ren Hongyan, who restrained his smile, uttered the word succinctly, and then added: "both floating trains and capsule trains travel in a mirrored environment, they are both in vacuum tubes, and they are mainly driven by inertial kinetic energy. However, there is a difference between how to provide a source of kinetic energy for the train. The capsule train uses a linear motor to accelerate the carried cabin, and finally relies on inertia to move forward in a magnetic levitation in a vacuum tube.”
"And the initial kinetic energy source of the floating train is the electromagnetic catapult." Ren Hong replied. In electromagnetic catapult technology, the United States is undoubtedly the leader in this field, and China has the ability to compete with Americans in this field under the situation that China has started after the field of electromagnetic catapult.
This technology, Chinese and Americans are at the forefront of the world.
Ren Hong said with a smile: "When it comes to electromagnetic catapult technology, I think the participants present may immediately think of the electromagnetic catapult on the aircraft carrier for the take-off of carrier-based aircraft. The electromagnetic catapult technology can be said to be the key to the aircraft carrier. technology.”
“Our company’s MS space base has an arc-shaped aerospace orbital launch tower, and now we will build several more, using electromagnetic catapult technology. There is no doubt that China and the United States have mastered the technology in the field of electromagnetic catapult. The most mature country."
"But the electromagnetic catapult technology I'm talking about here is not to drive a carrier-based aircraft or an air and space transport aircraft of ten or dozens of tons. The equipment to be driven is a super-large volume of tens of thousands of tons!"
Ren Hong said with a smile: "If the electromagnetic catapult or steam catapult on an aircraft carrier is to drive an aircraft, then what I'm talking about now is the ability to directly drive a big guy with a volume comparable to a medium-sized aircraft carrier and make it subsonic speed."
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…(To be continued.)