I! Pretending to Be Reborn, Director of Doomsday Hoax

"For traditional fans with blades, turbulent flow itself is not good for the operation of the fan, because the turbulent flow will complete the unstable operation of the fan, affect the stable output of power generation, and also place higher requirements on the tower and foundation."

"According to the IEC standard, the turbulence intensity in the wind speed interval of 15 meters per second determines the fan level, and engineers generally choose the fan type based on this."

"And the concept wind turbine I've seen does the opposite. It doesn't have blades, and it uses the turbulent energy of wind energy to generate electricity."

"In this way, it can reduce many parts, such as blades, drive shafts, wind rotor shafts, etc. Relatively speaking, the cost and difficulty of research and development will be greatly reduced."

"However, I personally think that this kind of wind turbine is not suitable for building an entire wind farm alone, because it will cause a waste of wind energy in the stable output section!"

"This is also the disadvantage of a large number of bladeless wind turbines. Its power generation efficiency is not as good as that with blades, which may only be 50.00% to 90.00% of the counterpart."

"However, we may be able to intersperse the traditional blade wind farm, so that the whole wind farm can use both the stable section and the turbulent section, and the whole wind farm can make more reasonable and full use of wind energy resources!"

[Bright Energy Smart Wind Farm Product Director, Li Bo]:

"Our team has been working on smart wind farms for several years. During this period, we have also proposed and seen many strange wind turbine designs. Let me talk about a wind turbine design that I think is highly feasible and easy to popularize."

"Ferris Wheel Fan!"

"I'll post a sketch of this fan later in the post."

"The most prone to wear and tear of traditional wind turbines is the gearbox connected between the wind turbine and the turbine. The annual insurance cost of this part accounts for a large part of the operating cost."

"The job of the gearbox is to convert the low rotational speed of the blades to the high rotational speed required by the turbine."

"Under extremely cold conditions, such fragile components are more likely to be damaged!"

"Also, in the era of extreme cold, we need to consider one more thing..."

"Under the temperature of two hundred degrees below zero on the surface, it is basically difficult for maintenance personnel to replace parts, which means that the maintenance cost will increase very high."

"One repair may consume a lot of resources."

"What's more, it is far more difficult to design a gear box that is extremely cold than designing a gear that is resistant to extreme cold, and it is almost impossible to achieve."

"And this Ferris wheel fan of mine."

"It abandons the gear box, and only needs to wrap a circle of material with a high friction coefficient and extreme cold resistance on the outer edge of the wind blade, so as to minimize the impact of extreme cold."

"How did we do away with the structure of the gearbox?"

"First of all, we also put a large number of miniature wheels on the bottom platform of the Ferris wheel, and these small wheels are in contact with the outer edge of the wind blade."

"Because the diameter is much different, when the big wheel drives the small wheel, even if the speed of the big wheel is not high, it can still drive the small wheel to rotate at a high speed."

"Finally, with the small wheel and the turbine, the whole design is free from the shackles of the gearbox, the chance of damage will be greatly reduced, and it is only necessary to design the wheels that are resistant to cold, and there is no need for a cold-resistant gearbox." At this moment, Xu Qiu Also look at designs that have received a lot of likes on social platforms.

There are kites, ferris wheels, and an "energy ball" wind turbine designed using the Venturi effect.

All kinds of strange things were brought up.

However, Xu Qiu was not satisfied.

The design and technical route of these fans are basically double-fed and permanent magnet direct drive, and no breakthrough innovative fans have appeared so far.

But it is not useless. Some wind turbines have breakthroughs in control, such as sector control, yaw management, independent pitch control, etc.

Zou Botao is also looking at the proposals selected by local energy bureaus.

He also shook his head one after another.

"It seems that the difficulty of the Wind Dragon Project is indeed not low..."

At this moment, Zou Botao's eyes lit up. He took a plan and ran to Xu Qiu immediately.

"Director Xu, this plan has bright spots!"

Xu Qiu glanced at it.

This is a wind turbine in the form of a wind wheel, which looks like a hot wheel and stands on the ground.

This wind wheel is very large, with a diameter of seven to eighty meters, and the middle is hollowed out. On this wind wheel, there are a large number of wind energy collection devices, which can increase the efficiency of wind energy conversion to a terrifying height.Xu Qiu nodded appreciatively, and said, "The efficiency is very high, but there are two problems."

"The first is cold resistance. Such a large building has higher requirements for cold resistance."

"Second, is the maintenance cost."

"This wind turbine is too big, and after it is completed, except for helicopters, it basically cannot reach the area on the top. If the top is damaged and wants to be repaired, we must also produce an extremely cold fan that can lift maintenance personnel to a high place. equipment."

Zou Botao asked: "Is it possible...to build an elevator in it?"

Xu Qiu shook his head, "It's not very feasible. This wind turbine is circular, and it's unreasonable to have a direct elevator."

"Besides, its bright spot is that there are multiple devices for collecting wind energy to improve efficiency. If stairs are designed in it, it will reduce the space of many wind energy collecting devices."

"In this way, its only advantage is lost."

Zou Botao sighed softly, returned to his seat, and continued to screen.

Xu Qiu put the Fenglong project on hold for the time being. At this stage, the most important things are the extremely cold steel rails, the severe cold concrete, the large shift of forests, and the overall migration of the southern population.

Tomorrow is the last day of July. The extremely cold steel rails and the forest area of ​​the dungeon must be completed.

At the beginning of August, the national plan for forest relocation will be announced, and the underground transfer of non-hardy tree species will start in an all-round way!

This plan will shock the world!

And after that, cold concrete.

In late August, all the temporary houses in the north had to be built, and in the last ten days of early September, the population in the south was left to move to the north and settle down.

And when the time comes, the entire south will become an empty city!

Xu Qiu suddenly thought, what can be done on such a large and empty country?

The south of the Little Ice Age was basically empty except for a small number of garrisons arranged, which can be used.

At this moment, Zou Botao's voice sounded again.

"Director Xu, here is an interesting design that achieves the ultimate in cold resistance!"

Xu Qiu came back to his senses and opened the wind turbine plan approved by Zou Botao.

This is a new type of vertical axis wind turbine.

This type of wind turbine has the advantages of advanced design method, high utilization rate of wind energy, and basically no noise.

The only disadvantage is that it adopts a circular arc-shaped double-blade structure, so the wind receiving area is small, and correspondingly, the starting wind speed is higher.

Other wind turbines can convert energy at a wind speed of five meters per second to generate electricity, while vertical axis wind turbines may require a wind speed of eight meters or even ten meters per second!

This is also an important reason why vertical axis wind turbines have not been vigorously developed.

However, in the extremely cold era, there is a never-ending gust of wind on the surface, so there is no need to worry about insufficient wind power!

The designer, obviously taking this into consideration, reconsidered the abandoned vertical axis wind turbine and redesigned it!

"Very good." Xu Qiu showed joy for the first time.

This plan was indeed beyond his expectations.

This new type of vertical axis wind turbine adopts the principle of aerodynamics, and simulates the wind tunnel for vertical axis rotation, and the blades adopt the shape of an aircraft wing.When the wind wheel rotates, it will not be affected by deformation and change in efficiency, etc.

It is composed of five blades in vertical straight lines, and the wind wheel is fixed by the hub of the quadrangular and pentagonal shape and the connecting rod connecting the blades. The wind wheel drives the rare earth permanent magnet generator to generate electricity and sends it to the controller for control. It is used for transmission and distribution loads. of electric energy.

The technical principle of this new type of generator from the vertical axis is based on the theory of air strips. The actual calculation can choose the section of the vertical fan rotation axis to calculate the model. According to the actual size of the blade, the distance between the rotation axis of each blade is N meters.

Then use CFD technology to simulate the aerodynamic coefficient calculation. The calculation principle adopts the discrete digital method to solve the aerodynamic force of the airfoil section, and uses the grid method to compare the flow vorticity distribution of the Reynolds number to form a digital simulation calculation of the Navier-Stokes equation at a high Reynolds number. The principle result.

Xu Qiu said appreciatively: "He adopted the principle of rare-earth permanent magnet materials to generate electricity, matched the wind wheel with aerodynamic principles, and adopted a direct-drive structure to rotate and generate electricity...very thoughtful!"

More than that.

This design, according to the principle of the H-type wind turbine, increases the speed of the speed of the wind wheel and the speed of the torque, and the speed of the power generation increases correspondingly, and the power generation curve becomes full.Under the same power, the vertical axis wind turbine will exert higher power.

Because this design structure adopts the principle of special air cavity mechanics, the connection method of triangle vector method and the principle of direct drive structure, the force of the wind wheel is mainly concentrated on the hub, so the wind resistance is strong.

Under the gale of the extremely cold era, it can be safe and sound.

And what makes Xu Qiu feel that this designer is very talented... is a shocking idea!

This is also a key step to maximize the cold resistance of the entire new vertical axis wind turbine!

The designer covered the entire wind turbine with a thick layer of feathers, and there are insulation layers and cold-proof layers under the feathers.

When the wind turbine is running, it will generate a certain amount of heat.

The outer insulation material and the feather structure design keep the heat and feed it back to the wind turbine, so that its own temperature is always maintained at a relatively high level...

"Who is this?" Xu Qiu asked.

This talent must be promoted.

Zou Botao said respectfully: "This is a 31-year-old postdoctoral fellow in wind energy and power engineering from Qinghua University in Longguo!"

"Tomorrow at eight o'clock, the second meeting of the Energy Bureau's Wind Dragon Project will be held."

"This postdoctoral fellow needs to be present. He will be reused by the Dragon Kingdom!"

Xu Qiu's words carried unquestionable authority.

Zou Botao said respectfully: "I'll make arrangements now!"

Xu Qiu stood with his hands behind his back.

He knew very well in his heart that this vertical axis wind turbine would definitely not be able to take up the banner of utilizing wind energy resources in the entire Dragon Kingdom in the era of extreme cold.However, Xu Qiu appreciates the idea of ​​this postdoctoral fellow.

More importantly, after seeing this design drawing, he was inspired by the feather structure, and he already had an even more wonderful design in his heart!

Longguo, an energy company in Shanghai.

Mo Hongxi was sitting in the office, dealing with the tasks assigned by his boss.

These tasks require no brains, but they are very cumbersome, and the middle and high-level managers above are unwilling to do them, so they can only leave them to this student who has just graduated from Qinghua University majoring in wind energy and power engineering.

Late at night.—One o'clock.

Mo Hongxi rubbed his eyes and looked up at the office.

Since the release of the news by the Emergency Management Bureau and the Energy Bureau, the entire wind energy industry has been shaken. A large number of wind energy professional designers and engineers have consciously stayed in the company, thinking about solutions all night long.

He is also one of them.

But he didn't expect that he was finally assigned these tasks by his boss, and he has been busy until now, and there are still nearly half of the project.

He sighed, mustered up the courage to stand up, and knocked on the door of his boss.

"Boss, I wrote a plan to the Energy Bureau earlier, which is related to vertical axis wind turbines. I want to continue to improve this plan. Can I deal with your tasks tomorrow?" Mo Hongxi asked.The boss looked up, his gaze was compelling.