Doomsday Bunker Upgrade

"What are these?" In the central room of the air circulation duct of the police station shelter, Uncle Ding looked at the pieces on the shelf in front of him, and asked puzzled, "It looks like a glass plate?"

A technician who was debugging these equipment heard Uncle Ding's question, and explained to him while continuing the work at hand: "This is an algae cultivation tank, the standard name is the biological reaction facade..."

After checking the condition of a bio-reaction facade, the technician continued: "Of course, in terms of material, you can indeed call them glass plates, these are all made of plexiglass, the inside of the facade is hollow, filled with After the medium, water and carbon dioxide are used to propagate the algae."

Seeing that there are thousands of pieces in front of them, and more biological reaction facades are being installed, the city police station manager with Uncle Ding asked, "Can they be used for oxygen supply? By these algae?"

"Yes, rely on these algae." The technician nodded and tapped a bio-reaction facade with his finger: "These algae will obtain the light energy required for photosynthesis under the illumination of the sun lamp, we The pipes at the bottom of the facade are filled with carbon dioxide to allow the algae inside to photosynthesize, while the pipes at the top are responsible for collecting the oxygen released by these algae and supplying the air circulation system of the shelter.”

"Just relying on these... What is the facade of the creature?" Another manager also spoke up, revealing a strong suspicion and distrust: "Can these things be used by 20,000 people in this shelter?"

When the manager spoke, the managers of the city police department showed the same look on their faces.

It's not that these managers don't pretend to understand or look down on the technicians, but the thousands of glass panels installed here can supply the oxygen consumption of the entire shelter, which makes people doubt whether it is true or not. can do it.

"These biological facades use the microalgae biological reaction oxygen production technology. The Germans have done a similar technical experiment before, and built a building house with this biological reaction to build the outer wall, a biological house like this. The generated biomass after the reaction provides enough heat and electricity to supply the needs of the three surrounding houses." The technicians were not surprised by this, and continued to explain to the managers of these city police stations.

After all, it was a matter of life and death for more than 20,000 people in this shelter, and the technicians felt that they really should explain it more clearly.

"We improved this technology. We originally planned to use it on submarines for experiments to see if it could be used as an oxygen supply system for submarines to increase the time that submarines stay underwater." The technicians did not conceal that this was originally a military experimental technology. In fact, he continued: "The efficiency of algae producing oxygen is actually the highest among all living things on the earth. 70% of the oxygen on the earth comes from the marine ecosystem, so relying on algae to supply oxygen to the shelter is theoretically no problem at all. of.

As for whether the oxygen production can guarantee the survival needs of 20,000 people, please don't worry about it. This system is designed to meet the needs of 30,000 people.

And although the oxygen content in the outside air will drop, it is not to the point where humans cannot survive, but the oxygen content will drop to a level similar to that in plateau areas. This system is mainly to prevent the oxygen content from dropping. , the deposition of carbon dioxide and the lack of oxygen inside the shelter due to the underground structure. "

The technical staff's explanation reassured these managers a lot. After listening to the explanation, the staff in charge of logistics discussed something.

"Do you think the oxygen content of the external environment will not drop to the point where humans cannot survive?" When the technician mentioned the problem of the oxygen content in the outside world, Uncle Ding was particularly concerned, because the SWAT team is currently the most outbound police force in the police station. Department, he is very concerned about this issue.

The technician seemed very interested in answering this question, and stopped his work to explain: "The total amount of oxygen in the earth's atmosphere is about one trillion tons, and the oxygen that a person breathes every year is about 270 kilograms.

Even if it is calculated at 0.3 tons, even if the earth's population of 7 billion is still there, it will take 550,000 years to consume the oxygen in the atmosphere, and it will take thousands of years for the oxygen content to drop by 1%. "

Speaking of this, the technician laughed and added jokingly: "Of course, this is actually impossible. Even if the atmospheric environment drops by one or two percentage points, it is enough to cause a hypoxia reaction in humans. Oxygen levels below 15% are enough to cause serious consequences.

The previous meteorite impact and global fires have consumed a considerable part of the oxygen in the atmosphere. According to calculations, the oxygen content in the atmosphere has dropped by about 0.5 to 1 percent.

In addition, there is no sunlight now, photosynthesis is close to stagnation, no new oxygen is produced in the atmosphere, and the oxygen content of the external environment can still be maintained at about 18-15%, of course, it depends on the region and the environment.

However, in the shelter, due to the problems of the underground building itself and the ventilation system alone, the oxygen content will be lower than the outside world. According to calculations, if there is no oxygen supplement inside the shelter, the oxygen content is likely to drop. to below 15%, and carbon dioxide deposits are formed, leading to hypoxia. "

Hearing the technician's explanation, Uncle Ding nodded clearly, but his brows were wrinkled.

The external environment can survive or cannot survive, and the issues that SWAT teams need to consider when they go out to the field are completely different.

If the external environment cannot survive, the danger in the external environment will mainly come from the harsh natural environment. This can be used to improve the protective equipment and safety measures of the field staff to ensure the safety of the field staff.

However, if the external environment can still survive, but the conditions are worse, then for the field personnel who go out to perform tasks, the danger will undoubtedly increase greatly.

In the peaceful era, there were still many crimes such as two robberies and one theft. In the apocalypse, with the weakening of the government's control over the city, even the interior of the refuge will have criminal behaviors, not to mention that the wild is now a problem for the government. Is it an out-of-reach area?

The technician seemed to see Uncle Ding's worry, smiled and comforted him: "But you don't have to worry too much about this comrade, in addition to lack of oxygen, the temperature in the wild will also seriously restrict human activities in the wild. With a low temperature of dozens of degrees below zero, coupled with the lack of oxygen, not many people can stay in the wild for a long time in this harsh environment."

Everyone understands what the manager means, to avoid prohibition, please understand

In addition, I really did not make up this oxygen production system. Hansi Miao did come up with this system, and the data is also based on relevant information.

This is a system that produces biomass through algae, and then produces methane from biomass. The methane is used to generate electricity and heat. The whole system is quite environmentally friendly, clean and efficient.