I ask you to build tractors, but you build rockets?

"Billionaire Elon Musk flies into space aboard SpecaX Dragon spacecraft."

“On May 20, SpecaX founder Elon Musk, two SpecaX engineers, and a wealthy man entered space on the Dragon spacecraft, along with a Tesla roadster sports car.”

In Beijing, as soon as Lin Ju refreshed Twitter, he saw the news posted by Lao Ma 15 minutes ago. He was wearing SpecaX's customized space suit. Backed by a blue Tesla roadster sports car.

It seems that there is no problem with the downsized Dragon spacecraft.

The Falcon 9 rocket of the original World Line had almost no failure experience after the successful recovery experiment. There were only a few recovery failures, but it has been launched more than 200 times without any failure.

The same goes for the Crew Dragon spacecraft. The Crew Dragon spacecraft has had two iterations for seven or eight years, so the Falcon 9+ Crew Dragon combination is extremely reliable both technically and historically.

Judging from the fact that Lao Ma tweets every less than half an hour, he is probably very happy on this space trip. Even the roadster sports car promised last year is here.

But the space agency believed that the sports car was an empty shell. Otherwise, the center of gravity configuration of the Dragon spacecraft would be a big problem, and there would be no place to store daily necessities. No wonder Lao Ma didn't open the door of the roadster.

"Mr. She, are there more than five places for space training this year? The Shuguang spacecraft can accommodate up to 11 people."

Academician She looked at Lin Ju and felt that something was wrong with him, so he immediately became vigilant.

"That's impossible. There are 11 aerospace experts. If something unexpected happens, we will be in big trouble. There were internal regulations after the June 3rd air disaster. Five people is already the limit."

As a military enthusiast, Lin Ju also knows about the June 3rd air crash. It was a crash that occurred in 2006 when the country was developing the Air Police 200 early warning aircraft for a test flight. This accident caused by ice on the wings caused the loss of 34 first-class personnel in the country. For electronics experts, this is a heavy blow that has almost halved their research capabilities. Otherwise, the development speed of today's early warning aircraft would be much faster.

Lin Ju: "But our spacecraft is much better than the Y-8, and its reliability is completely different. The June 3rd accident was largely attributed to the fact that the aircraft was overloaded and did not comply with safety regulations at the time."

"We have planned how many people will go up there. What's going on with Xinyuan?"

Academician She didn't bother to beat around the bush anymore and asked directly about the business.

"What can we do... Oh, there is really a small thing. The third and fourth living modules have been built. I plan to increase the launch frequency of the space shuttle. This is the four flight schedule for the second half of the year. Report Make some arrangements."

Lin Ju's tone was calm, but Academician She took the flight plan out of common sense and said while flipping through it:

"I knew that if Musk went up, you would also want to go up. This always... hmm? What is this? A passenger cabin for 100 people!"

Academician She was shocked and speechless when he saw the crazy passenger transport reconstruction plan, and kept shaking his head at a speed inappropriate for his age.

"Bullshit, bullshit! It's too dangerous, 113 people! Do you know how much risk you're taking? It's better to just work in space."

He originally thought that Lin Ju was bewitched by others and wanted to go into space. Who knew that he was planning to send more than a hundred people up at once? He didn't want to calculate the success rate. As long as it was not 100%, the Aviation Development Commission would not dare approve!

Even if the risk is 0.001%, that is more than 100 lives. This level of accident requires a national notification and the central government will set up a team to investigate, and the impact is incalculable.

Lin Ju was a little disappointed when he saw Academician She's firm refusal. Although he had expected it, he was still a little disappointed. It seemed that the resistance was indeed not small.

"Then...shall I go up?"

"That's pretty much it...wait a minute, you got me involved, hey!" Academician She just hated why the boss didn't take him with him when he went abroad. At present, no one in the Aviation Development Commission except him can suppress Lin Ju. As a result, every time he comes Nothing is trivial in the capital.

"What are the other things in the bag? Can we tell them together?"

"Ah? That," Lin Ju took out the remaining documents from the open briefcase.

"Chang'an University of Science and Technology deceived the Sichuan government and prepared to build a space power station, a small project."

"..."

Although Sichuan is the first to receive transfer payments from the central government every year, its mentality of keeping things together has never dropped. In addition, after the reform of the fiscal and tax relations between the central and local governments, its independent power has been greatly enhanced, and it is beginning to let itself go.

Space power stations are not a novel concept. Aramco was involved in it in the 1970s, but withdrew due to cost factors. After entering the new century, it picked it up again, but other countries are also following suit.

In 2008, space-based solar energy was included in the national key research plan. In 2014, the country released the space power station development plan and key technology system planning demonstration report.

In the original world line, the "Daily" plan was launched in 2018. In 2022, an experimental space-based solar power generation and reception device was built in China, and it is expected to build a space power station with power generation power comparable to the Three Gorges in 2035.

Compared with terrestrial power generation, space power generation has many advantages.

The first is the radiation intensity. Without the interference of the atmosphere and clouds, the average radiation intensity of the solar panels of a space power station operating in a geostationary orbit of 36,000 kilometers is 10 times that of the earth;

In addition, satellites in geostationary orbit can receive sunlight all day long and are not affected by the earth's rotation and weather at all, and can provide continuous power supply all year round.

According to some early demonstration reports from various countries, the power generation efficiency of ground solar panels is about 8% to 12%, while the efficiency of space power stations can reach 35.5%.

There are two main means of transmission to the ground: microwaves and lasers.

Compared with lasers, microwaves are not attenuated by the atmosphere. The microwave conversion and collection efficiency from 1 to 10G Hz can reach 90%, and the overall efficiency can still reach 32%, which is 2.5 to 4 times the ground efficiency.

The main person doing research in this area in China is Professor Ding Bijun of Chang'an University of Science and Technology. They were also working on the original world line domestic space power station project.

Perhaps affected by the changes in the world line, they approached the Shuchuan government, which was focused on finding a new job because the artificial moon project was rejected, and promoted their own space power station plan.

According to the prospects of their marketing plan, if a 1,000-ton power station with a power generation capacity of 160 megawatts and an area of ​​400,000 square meters is built in space, it can provide 10% of Chengdu’s installed power generation capacity. And because it generates electricity around the clock, in fact It can reduce the installed capacity on the ground by 15% to 20%.

Although the current cost of high-power solar panels is still close to 1 million yuan per square meter, if so many solar cells with a thousand times the current production capacity are to be mass-produced, the price can be reduced to an incredible level, and the overall power generation cost will also be However, it is only 4 billion yuan, and the overall cost of the space power station is within 10 billion yuan.

Such a space power station can generate 1.4 billion kilowatt hours per year and transmit about 1.26 billion kilowatt hours to the ground. According to the power supply standard of 0.55 yuan per kilowatt hour, the direct power generation is close to 700 million yuan. However, considering the reduced losses caused by all-weather power generation, the actual You can save twice the electricity bill.

Converted into thermal power, this means saving 860,000 tons of coal and 2.2 million tons of carbon dioxide emissions every year.