Designing Ventilation and Lighting

"Let's think about how to modify the ventilation system of the base. This is a big problem for underground shelters."

Sitting on the wooden chair with a slightly tight buttock, Su Mo began to recall the knowledge of the civilization era.

and the design of shelters in major doomsday movies...

An underground shelter requires a large-scale air filtration and conditioning system, but any ventilation ducts opened outside will become a safety hazard.

Therefore, in Sumo's idea, it is best to use the internal circulation system, but the premise is that there is water and electricity so that oxygen can be produced by electrolysis, which provides the possibility for the internal air circulation of the entire facility.

Of course, it can't really be completely sealed from the outside world. The stability of this completely sealed environment is extremely poor, and ventilation holes leading to the outside world are still necessary.

For the sake of concealment, this kind of vent should not be too large, and there must be a sealable switch that can be closed at any time.

If it is not restricted by the terrain, it is the best solution to set the vents under the rocks that are only exposed at the low water level of the river bed, or on uninhabited islands.

These slender pipes can draw purified and filtered fresh air into the bunker, and they can be closed at any moment, using internal circulation.

But given the current conditions and equipment in the shelter, this kind of idea can only be an idea.

After looking around at the items currently on sale in the trading channel, Su Mo decided to stick with the most mechanical design.

Utilize the submarine's periscope structure.

A window with dual functions of ventilation and lighting was opened in the center of the shelter.

The specific design is to dig a hole in the upper part of the shelter and install glass with better light transmittance.

And tie ventilated holes in the glass to ensure that air can circulate through the pipes.

Going down the dug hole, a "Z" turning hole can be made in the middle of the hole.

Install two plane mirrors parallel to each other and at an angle of 45 degrees to the incident light in the "Z" shaped hole. Through two reflections, the incident light is transmitted to the shelter to solve the daylight problem.

After the first layer of ventilation glass, a mechanical explosion-proof glass can be designed to ensure that the explosion-proof glass can be closed in case of a disaster to prevent liquid or toxic air from flowing in.

Such a simple design, even a high school student can think of it, but it takes a lot of work to implement it.

Without matching tools, it is a big project to penetrate the shelter five meters deep underground while ensuring accuracy.

but...

"I have a system!"

With the current understanding of the system, Su Mo has thoroughly understood the gameplay of the system.

When there are no materials, the system will consume a lot of money if it wants to use survival points to create materials out of thin air.

But when you have materials, the function of the system is more like that of a construction team, and you only need to spend a small number of survival points to achieve the purpose of upgrading.

After thinking about it, Su Mo opened the trading channel after confirming the feasibility.

Currently, the resources he can use are as follows:

Ordinary mineral water (1000ml), phantom energy water (600ml), and 10 catties of Dalieba bread.

As for the remaining pet eggs and blueprints for energy bicycles, he doesn't plan to trade them.

Trading channel.

[Seller: Sumo]

[Trading item: 50ml psionic water]

[Required items: explosion-proof glass]

[Remarks: Water that can strengthen the body, don't miss it when you pass by, only charge two units of glass, private chat with good quality]

...

[Seller: Sumo]

[Trading item: 15ml mineral water (up to 975ml)]

[Required items: 1 iron block (1/1 exchangeable times for a single person)]

[Remarks: Each person can only complete one transaction]

After the two items are successfully put on the shelves,

Su Mo also spent 25ml of water to buy two units of mirrors with good reflective performance and used up all the ordinary mineral water.

Somo exchanged 15ml of water for 1 iron block. Although it is an extremely black-hearted businessman's behavior, it is no less than a savior's behavior to some players who are struggling on the line between life and death.

In addition, the reason why each person can only trade once, Su Mo also has his own plan.

Water is now liquid gold. What he wants is to be consumed, not to be bought and hoarded by some caring people.

World chat channel.

"People who are short of water and have iron, go to the trading channel to see, God Su is selling water again! One person can only trade once, hurry up!"

"Damn it, God Su is magnificent!"

"Hehe, it's already too late. Fortunately, I paid attention to Su Shen's personal channel in advance, so I grabbed a sip of water. I didn't even look at Su Shen's more than 400,000 fans. Can you passers-by get it?"

"Where did Su Mo get the water? Yesterday he spent 700ml to buy the illustration book, and today he bought 1000ml of iron. Do you think it's too much?"

"Go and see, the psychic water hung by God Su can actually strengthen the body and cure diseases. As long as the explosion-proof glass is there, who has to change it quickly!"

"Oh, people are more angry than people. I dug all morning and didn't find a drop of water. I'm thirsty."

"..."

There is only one speech per day, and a large group of people gathers on the world channel to discuss, not to mention the grand occasion of the regional channel.

Even Su Mo's personal private messages were flooded at this time.

First of all, in less than two seconds, the iron block purchased for sale has been completed, and 65 units of the iron block are quietly lying in the inventory.

Just here, there are countless people holding other resources, yelling for a sip of water.

"Water is so sought after!"

Su Mo thought to himself.

In the past two days, others are selling water with resources, but he is the only one who exchanges water for resources. Naturally, he seems to be a maverick.

Using the screening function in private messages, Su Mo used the keyword iron to filter out 80% of useless private messages.

Using the search, I picked out dozens of private messages with explosion-proof glass and started to check.

After looking through a lot of private messages wanting to use ordinary quality explosion-proof glass to buy more water, Su Mo finally found an eye-catching one.

Feng Mengyue: "God Su, I have a piece of ordinary quality explosion-proof glass, but I think you will definitely not like it. If you are willing to increase the price, I can trade you a piece of excellent quality and a piece of rare quality explosion-proof glass."

The profile picture is of a woman with a delicate face and a heroic face.

Seeing the excellence and rarity, Su Mo frowned and smiled.

The current quality division temporarily has five levels: ordinary, excellent, excellent, perfect, and rare.

Feng Mengyue, a first-class female student, was able to get the rare-quality explosion-proof glass on the second day of the game, which shows her strength.

"I want to increase the price as soon as I open my mouth, but if I don't take the initiative to quote, it seems that I am also a difficult person."

Su Mo shook his head, he wasn't fooled and instead recovered the first army.

Su Mo: "You should understand the current value of nether energy water. There are so many things on the market, but I am the only one that can improve your physique. As for the explosion-proof glass, UU Reading www.uukanshu.com I bought it for a shelter It doesn't matter if the windows are good or bad."

Feng Mengyue: "Is 300ml okay?"

Su Mo: "Don't even think about it. It's just two pieces of glass, not worth so much. If you don't want it, I will drink it in the afternoon."

Feng Mengyue: "Let me think about it."

Seeing the other party's reaction, Su Mo couldn't help but laugh.

He is the only one selling phantom energy water in the market. It is an absolute seller's market. Once he decides not to sell it, buyers can only stare blankly.

Two minutes later, Feng Mengyue's news came again.

Feng Mengyue; "I'm adding a piece of information to the two pieces of glass, 300ml psionic water"

Su Mo: "What information?"

Feng Mengyue: "Information about how I obtained these glasses"

Looking at the words in the chat box, Su Mo thought about it and then chose to agree.

In the last few days, materials have prices and intelligence prices.

It's like killing a chameleon. If he doesn't have enough information, he may only be able to deliver food wearing all the equipment.

After connecting to the private transaction channel and uploading the designated seller of 300ml of psionic water, the transaction is completed.

[Record]: You lost 300ml of psionic water.

[Record]: Congratulations on obtaining the explosion-proof glass (excellent)*1, congratulations on obtaining the explosion-proof glass (rare)*1.

[Record]: Whether to extract glass information

"Extract"

The voice fell, and a voice played in the empty refuge.

"There will be relics refreshed from time to time in the wilderness. When I got up today, a mysterious relic was refreshed beside me. It looked dangerous inside, so I only found a few pieces of glass on the outside. I want to continue to explore. , the ruins suddenly disappeared."