- #1
archaeous
- 2
- 0
Ok I am almost positive this doesn't work or it would be used in deep submersibles, but I am at a loss as to why.
About every 33 or 34 feet pressure underwater increases by 1 atm. So a submarine at 33 feet under water with 1 atm internal pressure would have 2 atm of external pressure. Increase that to 330 feet and you have 10atm which is a bit harder to handle.
I am not sure about the biology and what kind of air pressure humans are capable of breathing and living comfortably in but for simplilcity sake can just say that 1 atm is desired.
Now many materials can not withstand this kind of force, most submarines can only dive to 200-300 meters and this isn't even for extended periods of time.
But why doesn't multiple hulls / walls in the case of buildings work? My real question has to do with underwater structures.
Say you have something like this
(10atm)--| (7atm) | (4atm) | (1atm) |
A series of hulls and chambers with slowly reducing pressures. The outermost one is the water, and as you move in its a series of sealed chambers, or possibly open to a moon pool. until there is an inner chamber at 1 atm. Now would the 10atm pressure apply to all internal chambers? or would it only apply to the outer one? If it would pass through and apply pressure to all chambers how does it do this? would distance between the chambers matter? I have a hard time picturing an outer wall and then 20 feet of pressurized air and then another wall having a perfect transfer of force. It has been a long time since I have taken physics and feel I am missing something simple
About every 33 or 34 feet pressure underwater increases by 1 atm. So a submarine at 33 feet under water with 1 atm internal pressure would have 2 atm of external pressure. Increase that to 330 feet and you have 10atm which is a bit harder to handle.
I am not sure about the biology and what kind of air pressure humans are capable of breathing and living comfortably in but for simplilcity sake can just say that 1 atm is desired.
Now many materials can not withstand this kind of force, most submarines can only dive to 200-300 meters and this isn't even for extended periods of time.
But why doesn't multiple hulls / walls in the case of buildings work? My real question has to do with underwater structures.
Say you have something like this
(10atm)--| (7atm) | (4atm) | (1atm) |
A series of hulls and chambers with slowly reducing pressures. The outermost one is the water, and as you move in its a series of sealed chambers, or possibly open to a moon pool. until there is an inner chamber at 1 atm. Now would the 10atm pressure apply to all internal chambers? or would it only apply to the outer one? If it would pass through and apply pressure to all chambers how does it do this? would distance between the chambers matter? I have a hard time picturing an outer wall and then 20 feet of pressurized air and then another wall having a perfect transfer of force. It has been a long time since I have taken physics and feel I am missing something simple