Doomsday Bunker Upgrade

To solve the problem of electric energy consumption, either the biomass generated by the oxygen generator Chen Xin created can be used for biogas power generation to meet his own consumption, or Chen Xin will continue to upgrade the current power system of the refuge, hoping to Upgrade it to a more self-sustaining power system, such as a nuclear reactor that can run for decades.

The first option is naturally impossible because of conservation of energy.

If the biomass produced by the oxygen generator can be used for biogas power generation to meet the system's own consumption, doesn't it mean that this is a perpetual motion machine?

Therefore, the solution to the problem is to continue to upgrade the system, and to upgrade to energy saving and replacement.

It's just that Chen Xin has checked his generator and power system. There are only two upgrade options in the system upgrade options: improving the working efficiency of the generator and improving the energy saving rate of the entire power system. I want to upgrade it to other types of generators temporarily. Not yet.

However, this is not absolute. Chen Xin thought that when he upgraded his protective clothing before, he provided a tactical raincoat to make the protective clothing more functional as a raincoat and tactical camouflage on the surface. He felt that if he could provide other power generation methods, it could also be integrated. into the power system.

"If I integrate biogas power generation into the power system, use gasoline generators as the main power, biogas power generation as auxiliary, and two methods to supply power at the same time..." Thinking that other power generation methods can be integrated into the power system, Chen Xin hurriedly took out a paper pen to calculate. ,

"The current consumption of the growing greenhouse requires the generator to consume 20 liters of gasoline per day to maintain, the consumption remains unchanged..."

"The planting greenhouse can meet my own oxygen consumption when there is light, and there is still surplus output... But considering the overflow of the ventilation system and the oxygen consumption after turning off the lights..."

"Under the condition that the light time remains unchanged for 12 hours, the oxygen produced by the greenhouse can maintain my consumption for 16 hours without considering the existence of external oxygen..."

"Extending the light time to increase the oxygen production can provide me with the oxygen I need for 24 hours, but at least five hours of light must be added every day, and the gasoline consumption will increase from 20 liters/day to 30 liters/day..."

"If you build an algae circulating oxygen generator, the power consumption will be smaller than maintaining the long-term light in the greenhouse. In addition to the power supplement brought by biogas power generation, you only need to increase the consumption of gasoline by 5 liters per day..."

List the various data for calculation, and Chen Xin can easily calculate the result.

Looking at the results he had calculated, Chen Xin touched his chin. Obviously, building an algae circulation oxygen generator like the one he told Mo Qingyan was the least expensive solution at present.

And when Chen Xin built such an oxygen generator, he could completely upgrade the oxygen generator through the system to improve its oxygen production efficiency, biomass output, biogas reaction efficiency... and even transform biogas power generation into Biomass fuel cells or convert the produced biomass into edible algae.

Thinking of this, Chen Xin is sincerely glad that he picked up this system when he entered the shelter, instead of turning a blind eye to it as an ordinary meteorite.

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Since he decided to build an oxygen generator, Chen Xin obviously had to take stock of the resources he had.

After all, this is not like upgrading an existing item, he can directly upgrade it with the help of the system's survival points.

This is also the biggest shortcoming of this system. It cannot create something out of thin air, it can only be upgraded based on what is already there.

Even if the items used as the basis for upgrading are simple and primitive, as long as there is a material basis, the system can continuously improve them.

But without this foundation, nothing will be discussed.

So even if Chen Xin built a sink with wooden planks to grow algae in the water, and then insisted that it was an oxygen generator, he would have to build the sink first.

Fortunately, the materials on Chen's novice are not lacking, and he doesn't need to build a sink with wooden boards.

To build an algae circulating oxygen generator, the first thing you need is not a water tank, but a foundation for algae growth, that is, a biological facade.

This is not complicated. If you are not so particular, the screen windows used at home can also be used.

Let the algae attach to it, then provide water, carbon dioxide and light, and soon the algae will start to grow and reproduce, and photosynthesize to release oxygen.

As for the water tank, this is not necessary, because it is possible to get a water pipe to hang on the attachment of the algae, and to keep the algae moist through the water pipe, it is not necessary to completely soak it in water.

If the conditions are better, it can provide a better basis for algae to attach to.

The German technology is to make hollow glass plates, connect supply and discharge lines to these hollow glass plates, and then inject culture medium into the hollow glass plates to grow algae.

At the lower end of a single hollow glass plate, carbon dioxide is injected into the medium as a nutrient through the supply line to generate bubbles. The eddy current formed during the rise of the bubbles will stimulate the algae in the medium to absorb carbon dioxide and light, perform photosynthesis, and continue to grow and reproduce.

When the algae grow to a certain extent, the algae in these hollow glass panels are recycled and the biomass is harvested.

According to the experimental data given by the Germans at that time, such a one-square-meter hollow glass plate can produce 900 kilograms of biomass a year, and about 10 liters of methane can be produced every day, and a two-hundred-square-meter hollow glass plate can produce about 10 liters of methane a year. more than 600 cubic meters of methane.

The methane used for power generation can generate 4500kW/h of electricity and 6000kW/h of heat, which can be said to be quite clean and efficient.

Of course, the Germans use fuel cells, rather than simply burning methane to release heat to generate electricity, which is much more efficient.

As far as Chen Xin's current materials are concerned, he can only use screen windows or other things that are easy to attach to as a base, and then pour water on it and provide light to allow it to grow algae.

Simply put, it is to build a simple device first, let it run first, and then consider upgrading it to improve operating efficiency and expand production capacity.

All you need to make a simple device is a sink, a micro vacuum pump, a few PVC pipes and an attached façade.

After Chen Xin rummaged through his storage room, he quickly found out what to use, although they might not be so suitable and needed some modification.

There are many differences in size, which leads to the failure of the pipeline and the vacuum pump. The sink is simply a plastic box, and the attached facade is also a screen window removed from the window of the container house...

Looking at these things, Chen Xin felt that maybe he should make himself a workbench first.