I! Pretending to Be Reborn, Director of Doomsday Hoax

Xu Qiu looked deeply, shook his head and said, "Only the Guangyue No. 100 underground city, within an area of ​​more than [-] hectares, this underground passage will have to pass through the railway eight times, the lake three times, and the lake thirteen times. Elevated, nine side tunnels..."

"The underground passage is also not feasible!"

Luo Hesong's expression darkened.

"Director Xu, is it possible to build a rail transit viaduct? Raise the height of the viaduct to more than 20 meters, and build a large interchange with two, five, or even six floors!"

Guan Bohou turned on the camera and spoke.

He is the chief designer of the most complicated overpass in Longguo, the Huangnanwan overpass in Yushi.

Chongqing City faces water on three sides and mountains on one side. The unique topographical characteristics have formed the characteristics of being built against mountains, with cascading buildings and winding roads.

And to build a viaduct here, the difficulty system is very high, even so, Guan Bohou has also completed this great project!

Guan Bohou went on to say: "When I was in the Chongqing Municipal Transportation Bureau, I used a plan to divide the overpass into five floors. The first floor is the three-horizontal expressway connecting Chaotian Bridge and Cimu Mountain. The second floor is dedicated to the airport. High-speed ramp. The third and fourth floors lead to various areas of Yushi, and the top floor leads to Guangyang Island."

"We can design a viaduct where each floor serves a different purpose, or lead to various underground cities across the country!"

The chief engineer of the Pearl Tower in Shanghai said: "Or to be more daring, we directly lay a pipeline on the ground, and the inside of the pipeline is designed with slide rails. If it is just to transport materials and goods, there is no need to consider issues such as comfort!"

The director of Longguo Electric Power Bureau and the designer of the power system in Hunan Province said: "If you follow this line of thinking, the pipeline is too laborious and costly! Just like the power tower, build a power tower every tens of meters or hundreds of meters, every two power Connect the towers with cables!"

"Just design power towers, cables, and trolleys that are strong enough to withstand the severe cold!"

Xu Qiu shook his secret head.

Viaducts, pipe slides, and cable connections are not the best choices in his mind.

Seeing Xu Qiu's statement, everyone's curiosity could hardly be restrained.

"Director Xu, what do you think?"

"Yes! Do you have a better way?"

More than 1000 scientists are all staring at Xu Qiu with sharp eyes on the screen at this moment.

They are looking forward to what kind of shocking plan this Director Xu, who has designed the super dungeon across the country and strategized, will come up with! .

Chapter 66 "Nuclear Power Train Structural Design Engineering Drawings"

Xu Qiu looked stern, and slowly said: "Nuclear train."

"Nuclear... powered train?!"

More than 1000 scientists were short of breath.

They looked at Xu Qiu in disbelief, and when they saw Xu Qiu's extremely serious expression, they were sure that Xu Qiu was not joking.

"Director Xu, isn't this plan similar to Professor Huang's Qinghai-Tibet Railway?"

"How can trains and railways operate at an ultra-low temperature of minus two hundred degrees?"

"At this temperature, the engine and the engine will collapse, and even the fuel will freeze into blocks...Nuclear power, can it work? M

Huang Yuan said excitedly: "Why not! There is only one reason why Longguo didn't develop nuclear-powered trains before, one is the cost, and the other is the price! If a nuclear-powered train was designed at a high cost, it was blown up by terrorists." !"

"Not to mention the loss of hundreds of millions of dollars in the budget, all along the train line will have to pay a terrible price due to the nuclear leak!"

"However, after the sun goes out, the surface temperature of Blue Star will gradually reach minus [-] degrees Celsius. In that case, there will be nothing outside that can threaten the nuclear-powered train!"

Zou Botao looked serious.

Nuclear powered... trains?

He said: "Theoretically, as long as the reactor can remain stable at any power, it can be placed anywhere as long as it is small enough. Even in the future, nuclear-powered hair dryers and nuclear-powered watches may become a reality."

"But the problem is.....we have a hard time shrinking a nuclear powered reactor!"

Xu Qiu smiled slightly. It seemed that this group of scientists who were only serious about the truth would not believe it if they did not release their big move.

He opened the drawer and pulled out a design drawing.

"Nuclear Power Train Structural Design, Control System and Operational Track Engineering Drawings"

"This...is a blueprint?!"

"Director Xu, you designed the super dungeon, and you also drove out the design drawings of the nuclear-powered train?!"

"Director Xu, did you already have this plan?!"

Shock and admiration are written on the faces of more than 1000 scientists at this moment!

They who have witnessed the one hundred pages of design drawings of the super dungeon will never doubt the authenticity and professionalism of this nuclear power train engineering drawing!

Xu Qiu had a humble smile on his face.

The blueprint of the nuclear-powered train was part of the last twenty pages of the dungeon construction blueprint at that time!

This involves modern technologies such as materials, machinery, electronics, computers and controls, as well as future technologies such as the miniaturization of nuclear power reactors and the miniaturization of cooling systems.

The entire nuclear power train includes the front, car body, bogie, vehicle connection device, braking device, vehicle internal equipment, traction drive system, nuclear energy kinetic energy conversion system, reactor, cooling system, and automatic control system!

Xu Qiu said seriously:

"What Mr. Huang and Mr. Zou said makes sense."

"In theory, our country has the technology to design and build nuclear-powered trains."

He picked up the draft paper and started to calculate, and said quickly:

"According to my calculations, if the nuclear-powered train is calculated at 250 kilometers per hour, the daily power consumption is about [-] degrees, and the power consumption is about [-] degrees per hour!"

"As for this train, the annual power consumption is about 24 degrees times 360 hours, and then multiplied by 170 for five days, [-] million degrees."

"The nuclear fission of uranium 235 used in nuclear power trains, under the condition of complete fission, the energy produced is about...85,022,239,908.5 joules."

"That is to say, for nuclear-powered trains, if we only calculate the energy required for running, 74 grams of uranium-235 can meet the energy consumption of this train for a year!!"

Xu Qiu put down the pen with a snap.

"However, the two biggest problems are the miniaturization of the cooling system and the miniaturization of the power conversion device!"

"The miniaturization of the cooling system is easier to solve, just make the core smaller. However, the price of doing this is that the cooling system will not be able to carry too complex architecture, and the control ability of the core temperature may be weakened!"

"The solution I gave was to design the entire cooling system into three layers!"

"The first layer is fully enclosed, with only the core liquid cooling medium inside. The second layer is connected to the third layer, and the temperature control system, cooling equipment, etc. are plugged in, and at the same time, insulation and cold-proof materials are installed on the outer surface. The entire cooling The system will be designed with cold-proof materials that can withstand extreme low temperatures!"

"The second is the miniaturization of the power conversion device!"

"Most of the current nuclear power can't be boiled. In other words, nuclear power plants in countries all over the world have a super-large isotope battery. Nuclear energy is just a continuous heat source. The thermal energy generated by nuclear energy is converted into kinetic energy. , and finally generate electricity!"

"The principle of this energy conversion is not fundamentally different from boiling water."

"The thermal energy generated by nuclear fission is converted into kinetic energy through a steam turbine, and then converted into electrical energy through a generator. The miniaturization of these devices is a big problem that cannot be solved!

Chapter 67 A train as huge as a building, a nuclear-powered dragon

The crowd was silent.

This is a worldwide problem in the entire academic world, and there is no way around the world to solve it.

Zou Baitao said: "This is too difficult! The reactor of a nuclear rocket weighs hundreds of kilograms just for the core and the neutron reflector..."

"This is still a core made of uranium-1.4 with a slow neutron critical mass of 235kg!"

A geologist who loves physics asked: "Professor Zou, the slow neutron critical mass of elements such as U242 is much lower than that of U235, only 0.042kg, so if the wrong 242 is used as the nuclear reactor core, can the nuclear reactor be greatly reduced? size?"

Zou Botao shook his head with a wry smile.

This is also the most misunderstood point by outsiders!

He explained: "First of all we have to be clear that we are talking about nuclear reactors, not nuclear bombs! So talking about critical mass is not correct!"

"The fission chain reaction in a nuclear bomb is uncontrollable, and all of it becomes a huge amount of energy in an instant. For a nuclear reactor, it is necessary to control the speed of the nuclear fission chain reaction and release energy slowly."

"Moreover, more than 90.00% of the nuclear bomb is uranium 235, which is the most fissile. The nuclear fuel used in nuclear reactors is less than 235% of uranium 5.00."

"The calculation is changed to 242, which only changes the less than 5.00% of the part, and will not have much impact on the entire reactor!"

"Therefore, for nuclear reactors, it is not feasible to only consider criticality. In addition, there are also materials tolerable temperatures, energy conversion and utilization systems, control systems and cooling heat transfer, working fluid circulation, heating devices, etc.!" Xu Qiu agrees He said: "Old Zou is right. Although there are more than 900 design methods for nuclear reactors in theory, based on practical considerations, the practical applications are very limited, and miniaturization is almost impossible."

Zou Baitao couldn't help asking: "In that case, Director Xu, what is your solution?"

Others were also interested.

"Director Xu, how do nuclear-powered trains work?"

"The director has already designed the engineering drawings, and I can already foresee that on the frozen blue star, there are only white glaciers and frozen soil left in the world, but there are nuclear-powered trains connecting each other between our dungeons." Connect, traffic!"

Xu Qiu showed a meaningful smile, and said: "Since the nuclear reactor is not small, then we... make the nuclear power train bigger!"

"Do large nuclear powered trains?"

"How big is it?"

Many scientists were dumbfounded.

This solution is really... simple and rude!

Xu Qiu said: "Everyone, don't be limited by your fixed thinking..."

"You know, the end of the world when the sun is extinguished that you are going to face is a catastrophe for the extinction of mankind, a catastrophe enough to end the era of human civilization!!"

"And this nuclear-powered train will travel on the surface of more than 200 degrees below zero, on the frozen land. It transports materials in units of dungeons."

"One dungeon has 10,000+, or even several 10 people. The materials transported by nuclear-powered trains may be for ten dungeons, or fifteen dungeons...the material needs of 100 million people!"

Everyone's expressions were dull, and they looked at the solemn Xu Qiu in astonishment.

This young leader has such a big ambition...so big! !

"According to my design, this train has a width of 20 meters, a full length of 120 meters, and a height of ten meters! As you can imagine, this is a three-storey house running on the track!!" Like a building As huge as a... train? !

At this moment, everyone's faces were filled with shock and...excitement!

Xu Qiu's eyes were firm, and he unfolded the "Nuclear Power Train Structural Design, Control System and Track Engineering Drawings"

The front of a nuclear-powered train is the most important part of the entire train, and it is also the basis for ensuring the operation of the train.