Senior Brother Zhao smiled, "The heat dissipation capacity is not enough, resulting in insufficient sewage treatment capacity. Do you know how much water each of us has, on average? ”

Zhang Yuan shook his head.

Zhao Qingfeng stretched out a hand: "5 tons, there are only more than two million tons of water in the entire spacecraft, and everyone averages down, only 5 tons of water." And how much does the average earthlings have? 0.13 cubic kilometers, or 130 million tons. ”

"One man has fifty times what we put together!"

"You think, we have so much water that our self-purification ability is almost zero. Used water is divided into several levels for treatment, such as drinking water, industrial water, domestic sewage, etc. How much energy does it take to re-distill drinking water? ”

"Energy itself is not a problem, nuclear fusion brings a lot of energy, but the heat generated by these industries, if not dissipated in time, will cause the problem of heat accumulation...... So much so that the heat dissipation capacity is completely insufficient. ”

"Well, that's right." Zhang Yuan nodded, he understood, the industry in the spaceship was one ring after another.

A single sewage treatment unit is not complicated, but when it is linked to other things, it becomes quite cumbersome.

Errors in any one link will lead to the collapse of the entire system. And a spaceship must retain a fairly high fault tolerance.

"So, the heat that we can't handle at the moment is just thrown out by emitting substances?" he said. ”

"That's right, arrive at Europa and replenish the substance one more time...... However, after reaching Jupiter, there will be no more resources to replenish, and everyone will have to hibernate, and when the population will drop sharply, the heat dissipation capacity will be completely sufficient. ”

In the process of chatting, the rail car arrived at the first stop, which is the core industrial area.

This is a vacuum, and there is no gravity, so you can't borrow any external force, so it's extremely troublesome to move.

For the convenience of the astronauts, electromagnetic generators are placed on the road. As long as the infrared probe on the spacesuit is aligned, after emitting a signal, it will generate a certain electromagnetic force and suck people over.

Zhang Yuan was no stranger to these devices, and soon mastered the trick of using them, flying by leaps and bounds in the corridor.

Through a thin layer of glass, there are many workers working in the production room.

Zhang Yuan saw an old acquaintance, Ye Kaifu, who was focusing on something on an electronic screen, but he didn't run over to say hello.

In fact, there is no need for so many people in the production room, but in order to increase everyone's proficiency, the management decided to train them in a way that is saturated with work. It's always right to cultivate anyway.

After a quick tour of the whole industrial process, there are not many machines in operation.

There are both advantages and disadvantages to the industrial production of space in spacecraft.

Let's talk about the disadvantages first, first of all, "extraction" is a very conventional process, and there is no way to achieve it directly.

As a simple example, water and oil are placed in a bottle and shaken violently to separate and extract the solutes by taking advantage of the different solubilities of different solutes in water and oil, a process called "extraction". The implementation on Earth is very simple. But in space, it is exhausting, and in space due to weightlessness, water and oil cannot be separated.

Similarly, chemical processes such as distillation, absorption, precipitation, and bubbling cannot be easily realized in the gravity-free zone.

However, because there is no gravity, the centrifuge thing starts to shine.

As long as the centrifuge is used, it is equivalent to making artificial gravity, rectification, absorption, precipitation, and bubbling can be completed again.

Moreover, the centrifuge in space is no longer disturbed by the gravity environment, and can create a larger earth, and refine and separate more pure substances.

Senior Brother Zhao asked, "This hypergravity distillation machine is capable of producing a gravitational acceleration of 500 g, and its separation speed is many times that of the rectification column on the earth?" Do you know the formula? ”

Zhang Yuan frowned and thought for a minute.

What is the packing tower correlation formula......

"7.9 times!"

Zhao Qingfeng was slightly surprised, he didn't expect this kid to even know such an unpopular formula.

But it's only slightly surprised, for geniuses, there are naturally expectations for geniuses.

"Very good, the speed of distillation is proportional to the power of 1/3 of the acceleration. As long as the rotation is faster, the faster the chemical purification will be. ”

"On our moon, there is a very complete set of silicon purification industry, but unfortunately you have no way to see it now. Through repeated acidification and distillation, it is possible to refine extremely high-purity pure silicon ingots, with a purity of about 99.9999......%, which is about 15 9s, while the industry on the earth can only refine the purity of 11-12 9s, and then it is difficult to go further due to various reasons such as oxygen. ”

Pure silicon ingots are the basis of the chip.

The higher the purity, the higher the yield of the chip. So the moon became the center of cutting-edge manufacturing.

The two continued to move forward.

If memory serves, the machine in front of me is the famous YS-3D lithography machine.

It's about one story tall and looks a bit like a large oven.

It's just that this guy was temporarily left out in the cold, because the "Earth Era" can't produce any chips at all. What kind of exquisite structure is inside, Zhang Yuan has no way to see.

"Will it be broken in 3,000 years?"

"No, you think it's a TV set at home, and it will break if you don't use it for a long time?"

Zhao Qingfeng said with a smile: "We have already dealt with it in advance. This is cosmic space, there is no oxidation and corrosion of oxygen, although there will be some quantum motion, it is still not a problem to retain it for thousands of years. ”

It is also said that the vacuum environment combined with ultra-low temperatures can store almost anything for a long, long time.

Even human and animal carcasses can be preserved for a long time.

With the development of the aviation industry, there are more than 50,000 human corpses floating in the solar system, some of which have returned safely, and some of which have not seen their bodies, just quietly hidden in a corner of the solar system.

A few years ago, Zhang Yuan once witnessed a drone bring back the body of an astronaut.

He was shriveled like a mummy, covered in frost.

The panic on his face still did not dissipate, telling what happened at the last moment.

This is a 100-year-old worker named "Carter Bradenwald" who died in a wreck while building a space elevator, and a hundred years later, he finally returned to his roots and returned to the arms of Mother Earth.

In the past, people raised their eyes to the Milky Way and depicted heroes in the constellations.

And now, we still look up, but heroes are cold drives.

If a civilization wants to develop, it will inevitably be accompanied by sacrifices, Zhang Yuan just hopes that the years will be quiet, and in the future, mankind will be able to endure less such disasters......