Chapter 78

Elder martial brother Zhao laughed, "the heat dissipation capacity is not enough, which leads to the 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 only has more than 2 million tons of water. On average, each person has only 5 tons of water. And how many people on earth have on average? 13 cubic kilometers, or 130 million tons. "

"One person has 50 times as much as all of us!"

"Think about it, our self purification ability is almost zero when we have a little water. Used water is divided into several levels for treatment, such as drinking water, industrial water, domestic sewage and so on. Drinking water needs to be re distilled. How much energy does it take? "

"Energy itself is not a problem. There is a lot of energy brought by nuclear fusion, but if the heat generated by these industries is not released in time, there will be a problem of heat accumulation So much so that the heat dissipation capacity is not enough. "

"Oh, yes." Zhang Yuan nodded, he understood, the industry in the spacecraft, a ring with a ring.

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

Any mistake in one link will lead to the collapse of the whole system. But a spaceship must keep a high fault tolerance rate.

"So, can we just throw out the heat that we can't deal with right now by way of emissions?" he said

"Well, when we get to Europa, we need to replenish However, after arriving at Jupiter, there will be no more resources to replenish, and we will have to hibernate. At that time, the population will drop sharply, and the heat dissipation capacity will be sufficient. "

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

This is a vacuum zone, plus there is no gravity, without any external force, the action is extremely troublesome.

For the convenience of astronauts, electromagnetic devices are placed on the road. As long as the infrared probe on the spacesuit is aimed, after a signal is emitted, it will generate a certain electromagnetic force to suck people in.

Zhang Yuan is no stranger to these devices. He soon mastered the use of them 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 he didn't 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 them in the way of saturated work. Anyway, it's always right to cultivate.

The whole set of industrial process is just a matter of fact. There are not many machines in operation.

The space industrial production inside the spaceship 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. Different solutes have different solubility in water and oil. This process is called "extraction". It's very simple on earth. But in space, it's hard. In space, due to weightlessness, water and oil can't be separated.

Similarly, distillation, absorption, precipitation, bubbling and other chemical processes can not be simply realized in the gravity free zone.

But because there was no gravity, centrifuges began to shine.

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

In addition, centrifuges in space are no longer disturbed by the gravity environment, and can create more earth and separate more pure materials.

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

Zhang Yuan frowned and thought for a minute.

What is the packed column correlation

"7.9 times!"

Zhao Qingfeng slightly surprised, did not expect that this boy even so unpopular formula all know.

But it's just a little surprise. For genius, there are naturally expectations for genius.

"Well, the speed of distillation is proportional to the 1 / 3 power of acceleration. The faster the rotation, the faster the chemical purification

"There is a very complete silicon purification industry on our moon, but you can't see it now. Through repeated acidification and distillation, the pure silicon ingot with high purity of 99.9999 can be extracted %It's about 15 nines, but the industry on earth can only extract 11-12 nines. It's hard 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's about one floor high, and it looks like a big oven.

It's just that this guy has been left out in the cold for a while, because Earth age can't produce any chips at all. Zhang Yuan had no way to see the delicate structure inside.

"Will it be broken in 3000 years?"

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

Zhao Qingfeng said with a smile: "we have dealt with it specially in advance. This is the space of the universe. There is no oxygen oxidation and corrosion. 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, there are more than 50000 human corpses floating in the solar system. Some of them return safely, and some of them are still hidden in a corner of the solar system.

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

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

Face is still not scattered fear, telling the last moment of experience.

One hundred years ago, the worker who died in a space elevator crash was named "Carter bradenwald". One hundred years later, he finally came back to the embrace of mother earth.

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

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

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