About Submarine
Atmosphere


The only way a modern nuclear submarine can sustain a prolonged period underwater, is to have some method of cleaning out the odors and toxins in the air, and replenishing the Oxygen. Without giving any classified information, it is accomplished with the equipment in the graphic below.

Click on the equipment to learn more. Click on the to return to the graphic.

Part of the ship's Ventilation System filter. This activated charcoal filter removes odors and hydrocarbons. from the sub's air supply This equipment is used to monitor O2, CO2, CO, H2, and refrigerant levels in the sub's atmosphere. When at sea the O2 generator uses water to make O2 and H2. The H2 is disposed of and the O2 replenishes the oxygen banks.
This machine is used to remove excess CO2 from the atmosphere. This catalytic converter removes CO & H2 by converting it to O2 and water vapor. Used since before WWII as a back-up source for Oxygen. The contents of these canisters are ignited in a special chamber called a furnace and produce O2 and ash.
Since before WWII Submariners of the world have had to rely on Lithium Hydroxide crystals as an emergency CO2 absorbent. See Below;
Lithium Hydroxide Curtain: An Undersea Lifesaver
 

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Charcoal Filter Part of the ship's Ventilation System filter. This activated charcoal filter removes odors and hydrocarbons. from the sub's air supply
Atmosphere Monitor This equipment is used to monitor O2, CO2, CO, H2, and refrigerant levels in the sub's atmosphere.
O2 Generator When at sea the O2 generator uses water to make O2 and H2. The H2 is disposed of and the  O2 replenishes the Oxygen banks.
CO2 Scrubber This machine is used to remove excess CO2 from the atmosphere.
CO & H2 Burner This catalytic converter removes Carbon monoxide (CO) & H2 by converting it to O2 and water vapor.
Oxygen Candle Used since before WWII as a back-up source for Oxygen. The contents of these canisters are ignited in a special chamber called a furnace and produce O2 and ash.