- #1
RICKYtan
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How to make changing depths irrelevant for breathing in a small submarine or other manned underwater vehicle; in terms of the under breathing apparatus or system ?
Underwater breathing apparatus?
- Thread starter RICKYtan
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In summary: Liquid breathing is not widely used because the equipment is expensive and it is not as efficient as SCUBA.
- #2
berkeman
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Make the sides of the submarine rigid, like pretty much all submarines.RICKYtan said:
- #3
DS2C
Not sure what your'e asking, but subs are pressurized to 1 ATA, regardless of their depth. Their depth restrictions are structural.
- #4
Gigaz
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What you need is Liquid breathing. It's not used widely.
https://en.wikipedia.org/wiki/Liquid_breathing
https://en.wikipedia.org/wiki/Liquid_breathing
- #5
CWatters
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Good description of the problem you have without a rigid sub...RICKYtan said:
http://www.bishopmuseum.org/research/treks/palautz97/phys.html
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jim hardy
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Jacques Cousteau who developed the Aqua-Lung,
figured out his pressure regulator needed to be adjacent his chest so that regardless if he were upside down or right side up or level , the regulator is at the same depth as the lungs. When it's not it makes air at the wrong pressure for breathing.
27 inches of water is a psi of pressure.
2 psi is enough to distend your lungs 10% and kill you, look up 'Pulmonary Barotrauma and Scuba Diving'. It can happen is a swimming pool.
So if this is something you're building at home go out and get some scuba training.
I read all of Cousteau's early books in the 1950's when i was in grade school. If underwater is your hobby you might enjoy them as history written by a pioneer in the field..
figured out his pressure regulator needed to be adjacent his chest so that regardless if he were upside down or right side up or level , the regulator is at the same depth as the lungs. When it's not it makes air at the wrong pressure for breathing.
27 inches of water is a psi of pressure.
2 psi is enough to distend your lungs 10% and kill you, look up 'Pulmonary Barotrauma and Scuba Diving'. It can happen is a swimming pool.
So if this is something you're building at home go out and get some scuba training.
I read all of Cousteau's early books in the 1950's when i was in grade school. If underwater is your hobby you might enjoy them as history written by a pioneer in the field..
- #7
DS2C
Will second that. I've seen an arterial gas embolism in a 6 ft swimming pool. If you want to tinker with breathing compressed gas under pressure, know what youre doing.
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jim hardy
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Yes.DS2C said:
When kids duct-tape dad's paint sprayer to a garden hose and jump in the pool tragedy has just got a dual invitation - electrocution.and burst lung sacs
If you have kids don't let them do that.
I did it and was lucky but at every chest X-ray they ask me " Why are your lungs all scarred up? Were you a coal miner years ago? "
It's a very real danger.
old jim
Last edited:
1. How does an underwater breathing apparatus work?
An underwater breathing apparatus, also known as a scuba diving gear, works by delivering compressed air from a tank to the diver through a regulator. The regulator reduces the high pressure of the air from the tank to a level that is safe for the diver to breathe. The air is then delivered to the diver through a mouthpiece, allowing them to breathe underwater.
2. How long can you stay underwater with a breathing apparatus?
The duration of time a diver can stay underwater with a breathing apparatus depends on various factors such as the size of the tank, depth of the dive, and the diver's breathing rate. Typically, a standard-sized tank can last between 30 minutes to an hour, but this can be extended with proper breathing techniques and equipment.
3. Are there different types of underwater breathing apparatus?
Yes, there are different types of underwater breathing apparatus that are designed for different purposes and diving conditions. Some common types include open-circuit, closed-circuit, and semi-closed-circuit systems. Each type has its own advantages and limitations, and the choice of apparatus depends on the diver's preference and the type of diving they will be doing.
4. How do you maintain and care for an underwater breathing apparatus?
Proper maintenance and care for an underwater breathing apparatus are essential for the safety of the diver. This includes regular cleaning of the equipment after each dive, proper storage to prevent damage, and periodic inspections to ensure all parts are in good working condition. It is also important to follow the manufacturer's instructions for maintenance and service intervals.
5. Can anyone use an underwater breathing apparatus?
In general, anyone who is in good physical condition and has received proper training and certification can use an underwater breathing apparatus. However, there may be certain medical conditions or age restrictions that could prevent someone from diving. It is important to consult a doctor and receive proper training from a certified instructor before using an underwater breathing apparatus.
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