Chapter 1505

"Cough --"

on the lunar rover, hearing the light cough coming from the communication channel, the man sitting beside looked at the side of the boat and asked with concern.

"What's the matter?"

"Nothing, but the nose is a little itchy..."

Across the mask of the spacesuit, I couldn't touch the boat with my nose. I took a strange sniff. It's hard to sneeze but not to sneeze.

I don't know who is thinking about myself.

Put this matter aside for the time being, the land boat looked out of the window, and looked at the nearby city leaning on the edge of the crater, with some emotion in mind.

"I designed that blueprint, but I didn't expect that a hundred years later, it would be so prosperous here."

The man sitting next to him smiled and said.

"It seems that what you expect has been achieved."

The boat nodded.

"Well, at least half of it has been achieved."

At this moment, the man in his early thirties sitting next to him is Ye he, the mayor of Guanghan City. After hearing that East Asia electric power led its own investigation team on the site selection of the second generation controllable fusion reactor, mayor Ye personally received his party.

Hearing Lu Zhou's words, ye he said with a joking smile, "can you ask me what the other half is? Please also ask academician Lu for advice. "

Lu Zhou: "energy."

At the moment of hearing these two words, ye he was slightly stunned, and there was an obvious surprise in his eyes.

Although it's not a secret, for a scholar who just woke up from the sleeping cabin last month and came from that era a hundred years ago, it's hard to be surprised that one sentence points out the biggest bottleneck facing the development of Guanghan City.

"You see that?"

Land boat light smile to say.

"That's right."

Strictly speaking, the moon is not suitable for the development of densely populated cities. Single resources and high maintenance costs severely limit the industrial development threshold here.

Different from the earth, compared with the earth where controllable fusion technology has already blossomed everywhere, the energy cost of Guanghan Special Economic Zone, which still uses solar energy, can be said to be quite high.

It's not that people here don't want to popularize controllable fusion technology, but because it's too difficult to build fusion reactors on the moon.

The most serious problem is the heat accumulation in vacuum. It is roughly estimated that the heat sink needed to build a generation-1 fusion reactor can cover almost half of the moon.

It is estimated by Lu Zhou that without the support of the second generation of controllable fusion technology, Guanghan will be able to develop to the current scale, which is basically the end.

Unlike on earth, the whole artificial ecosystem and life support facilities are completely maintained by energy, in other words, people are consuming precious energy from the moment they set foot on the moon.

In the early days, there were not many people in Guanghan City, just the scale of a scientific research station. A solar array with an area of crater and a storage facility with the size of a scientific research base could fully meet the needs of the whole colony in a round the clock rotation.

However, at present, there are at least 100000 permanent residents in Guanghan City. As the tourism and commercial research center of the Earth Moon system, the floating population here is ten times larger.

The energy consumed every day is an astronomical figure, not to mention that most of the energy gap has to be filled by solar energy facilities, so that the whole urban planning of Guanghan City is very compact. In order to leave space for solar energy facilities, it has almost reached the peak of minimalist architectural style.

This is also the reason why most of the later countries simply jumped over the moon and marched directly to Mars.

There is no hope for the second generation of controllable fusion. Whether helium-3 buried in the lunar soil can be used as a strategic material in the space age has been questioned. If it is only for titanium ore and rare earth resources, the asteroid belt can fully meet the supply of Mars and the Earth Moon system. There is no need to nibble at the hard bone of the moon.

After arriving at the destination, the party got out of the car.

Looking at the crater in front of him, the boat nodded with satisfaction.

The terrain is perfect, and the angle to the earth is also good. Next is the geological composition analysis. As long as the geological structure of the lower lunar soil is not loose and porous, the location of the experimental pile is not a big problem here.

"The conditions here are quite suitable. If there is no problem with your side, I intend to build the second generation controllable fusion experimental reactor here."

"To be honest, according to the blue map I designed in that year, if there is no second-generation controllable fusion technology, 100000 permanent residents are almost the limit of Guanghan City. The reason why I have so many helium mines is that I have taken this into consideration. "

"As a result, to my surprise, I thought these good things would surely benefit my compatriots in 100 years, but I didn't expect you to even drink broth."

Listen to Lu Zhou's teasing, ye he looks embarrassed and says with a light cough."This I can't decide whether the second generation of controllable fusion technology can be solved. And I have a puzzle here. I don't know if it's appropriate to ask. "

Lu Zhou said with a smile, "if you don't understand, ask, what's wrong with it?"

Mayor ye said seriously: "the first generation of controlled fusion has the problem of thermal accumulation. Is there no similar problem in the second generation of controlled fusion? I don't quite understand why you chose to build the fusion power station on the moon. If there is a means of long-distance transmission Why don't you build a power station on the earth and send electricity directly here? "

Lu Zhou: "thermal accumulation is a problem, but it can be solved for the second generation controlled fusion. So, because a generation of controllable fusion will produce extra neutrons, the design idea of reactor shell is to recover the extra neutrons, such as liquid lithium neutron recovery technology and so on. Although these designs can effectively recover neutrons, they do not solve the problem of core overheating well, and occupy at least 70% of the design space. "

“…… That is to say, because the second generation of controllable fusion will not produce extra neutrons, you can omit many redundant designs to make more design space for solving the problem of thermal accumulation? " Feeling his chin thoughtfully, yeh nodded his head in a confused way. "I seem to understand what you mean."

The land boat gave the nod.

"You are very savvy --"

"Oh, don't be fooled by his nonsense!"

At this time, the discordant voice suddenly came from the communication channel.

After hearing this, a group of people subconsciously looked behind them, only to see an old man in a spacesuit, walking towards this side in a big step.

Behind him, he followed a young man, who was chasing the steps of the old man with a wry smile.

Recognizing that the identity of the young man is his secretary, but not the old man in front of him, mayor Ye frowned slightly, but still said with grace.

"Is that you, old man?"

The old man looked at the land boat and then looked at Yehe, unhappy.

"Qiumingrui! You invited me here. I don't know who I am. "

Hearing the old man's name, mayor Ye suddenly appeared on his face, then he said with a smile.

"It's academician Qiu. I'm disrespectful. But why are you here today? "

Qiu Mingrui said with a smile.

"If I'm late again, you can't be fooled by this guy."

It's OK to be lame

Do people in the 22nd century know about this old man?

Looking at the old man who was inexplicably hostile to him, Lu Zhou asked curiously.

"What is this?"

"This is academician Qiu Mingrui, an expert of the Institute of nuclear physics of the Pan Asian Institute of engineering!" Mayor ye also said with a smile, "we invited the elderly to do the feasibility assessment of the project. After all, you take such a large piece of land, and there are certain safety risks, which are normal procedures."

"It should be," Lu Zhou nodded, then looked at the ill behaved academician in autumn. After thinking for a few seconds, he said, "it seems that you are here to stop me. In that case, you should go straight to the point."

I don't know where I came from, or I was a grumpy person.

When the old man in the suit heard this, he looked at the boat and put it down aggressively.

"I'll ask you three questions. Dare you answer them?"