Chapter 82

Elder martial 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. The whole spacecraft has only more than 2 million tons of water. On average, everyone has only 5 tons of water. And how many people on earth have on average? 0.13 cubic kilometers, or 130 million tons. "

"A man has fifty times as much as we combined!"

"You think, with such a little water, our self purification ability is almost zero. The used water is divided into several levels for treatment, such as drinking water, industrial water, domestic sewage, etc. The drinking water needs to be distilled again. How much energy does it need? "

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

"Oh, yes." Zhang Yuan nodded. He understood that the industry in the spaceship was one ring after another.

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

Any error in one link will lead to the collapse of the whole system. A spaceship must retain a high fault tolerance rate.

"So, can we just throw away the heat we can't deal with at present by emitting substances?" he said

"Well, after arriving at Europa, replenish the material again... But after arriving at Jupiter, there will be no more resources to replenish, and everyone will have to hibernate. At that time, the population will decrease sharply and the heat dissipation capacity will be enough."

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

This is a vacuum zone. In addition, there is no gravity and there is no external force. It is very troublesome to move.

For the convenience of astronauts, electromagnetic generating devices are placed on the road. As long as the infrared probe on the spacesuit is aligned and sends out a signal, it will produce a certain electromagnetic force to suck people in the past.

Zhang Yuan was no stranger to these devices. He soon mastered the tricks and danced across the corridor.

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

Zhang Yuan saw an old acquaintance, ye Kaifu, focusing on something on an electronic screen, but did not run 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 in the way of saturated work. It's always right to cultivate anyway.

The whole set of industrial processes was visited at a glance, and not many machines were started.

The space industry inside the spacecraft has both advantages and disadvantages.

First of all, there is no direct way to realize the very conventional process of "extraction".

For a simple example, water and oil are placed in a bottle and shaken violently. The solutes are separated and extracted by using the different solubility of different solutes in water and oil. This process is called "extraction". Implementation on earth is very simple. But it's hard in space. In space, water and oil can't be separated due to weightlessness.

Similarly, there is no simple way to realize chemical processes such as distillation, absorption, precipitation and bubbling in the weightless zone.

But because there was no gravity, the centrifuge began to shine.

As long as a centrifuge is used, it is equivalent to manufacturing artificial gravity, distillation, absorption, precipitation and bubbling.

Moreover, centrifuges in space are no longer disturbed by the gravity environment, can create more land and separate more pure substances.

Elder martial brother Zhao asked, "this high gravity distillation machine can produce 500 g gravitational acceleration. How many times is its separation speed than the distillation tower on earth?"? Do you know the formula? "

Zhang Yuan frowned and thought for a minute.

What is the correlation of packed tower

"7.9 times!"

Zhao Qingfeng was slightly surprised. Unexpectedly, the boy even knew such an unpopular formula.

However, I was only slightly surprised. Naturally, I have expectations for genius.

"Very good. The speed of distillation is directly proportional to the 13th power of acceleration. As long as the rotation is faster, the speed of chemical purification will be faster. "

"There is a very complete silicon purification industry on our moon. Unfortunately, you can't see it now. Through repeated acidification and distillation, pure silicon ingots with high purity can be extracted, with a purity of about 99.9999...%, about 15 nines. However, industries on earth can only extract the purity of 11-12 nines, and it is difficult to go further because of oxygen and other reasons. "

Pure silicon ingot is the basis of 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 you remember correctly, the machine in front is the famous ys-3d lithography machine.

It is about one floor high and looks a bit like a large oven.

However, this guy was left out for the time being, because the earth times could not produce any chips at all. Zhang Yuan couldn't see what exquisite structure was inside.

"Will it be broken in 3000 years?"

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

Zhao Qingfeng smiled and said, "we have handled it specially 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 keep it for thousands of years. "

It's true that almost anything can be preserved for a long time in a vacuum environment and ultra-low temperature.

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

With the development of aviation industry, more than 50000 human bodies have been floating in the solar system. Some have returned safely, and some have died. They are so quietly hidden in a corner of the solar system.

A few years ago, Zhang Yuan witnessed with his own eyes that a UAV brought back the body of an astronaut.

He was as dry as a mummy, surrounded by frost.

There is still no fear on his face, telling the experience of the last moment.

This is Carter bradenwald, a worker who died in a crash while building a space elevator a hundred years ago. A hundred years later, he finally returned to his roots and returned to the embrace of mother earth.

In the past, people looked up at the Milky way and depicted heroes in constellations.

And now, we still look up to it, but the hero is cold.

If a civilization wants to develop, it will inevitably be accompanied by sacrifice. Zhang Yuan just hopes that the years will be quiet and good. In the future, mankind can withstand less such disasters