boomx5
Contributor
I was wondering if astronauts use rebreathers in space. And if so, how do they work and or differ from the ones rebreather divers use?:flyer:
Astronauts?
- Thread starter boomx5
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DrySuitDave
Contributor
They use dual redundtant pure oxygen rebreathers with full atomospheric controls including liquid coolers:
"The PLSS consists of a backpack unit permanently mounted to the hard upper torso of the suit and a control-and-display unit mounted on the suit chest. The backpack unit supplies oxygen for breathing, suit pressurization and ventilation. The unit also cools and circulates water used in the liquid cooling ventilation garment controls ventilation gas temperature, absorbs carbon dioxide, and removes odors from the suit atmosphere. The secondary oxygen pack attaches to the bottom of the PLSS and supplies oxygen if the primary oxygen fails. The control-and-display unit allows the crew member to control and monitor the PLSS, the secondary oxygen pack, and, when attached, the manned maneuvering unit."
"The PLSS consists of a backpack unit permanently mounted to the hard upper torso of the suit and a control-and-display unit mounted on the suit chest. The backpack unit supplies oxygen for breathing, suit pressurization and ventilation. The unit also cools and circulates water used in the liquid cooling ventilation garment controls ventilation gas temperature, absorbs carbon dioxide, and removes odors from the suit atmosphere. The secondary oxygen pack attaches to the bottom of the PLSS and supplies oxygen if the primary oxygen fails. The control-and-display unit allows the crew member to control and monitor the PLSS, the secondary oxygen pack, and, when attached, the manned maneuvering unit."
jeffsterinsf
Contributor
Another difference is the environment -- Austronauts have to deal with an environment that is less than 1 atmosphere (and not more than 1 atm less 
) and breathing mixtures (I would assume) near 1 atm, while divers deal with environments and breathing mixtures at generally much greater than 1 atm. Changes the whole set of problems that the body has to deal with.
) and breathing mixtures (I would assume) near 1 atm, while divers deal with environments and breathing mixtures at generally much greater than 1 atm. Changes the whole set of problems that the body has to deal with.Similar threads
