Pressurization System supplies breathable air

Pressurization System - supplies breathable air

• Pressurization System - supplies breathable air

I. Pressurization System (cont.)

• I. Pressurization System (cont.)

• D. Station Components
• 80% N2, 20% O2
• Pressure 14.7 psi
• E. Station Supply
• N2 & O2 tanks: Progress
• O2 source: electrolysis
• Backup O2: solid cartridges (exothermic)

II. Air Revitalization System (ARS) – cleans used air A. ARS Microfilters -traps dust, hair, skin cells, etc…

• II. Air Revitalization System (ARS) – cleans used air A. ARS Microfilters -traps dust, hair, skin cells, etc…

• B. LiOH canisters-removes carbon dioxide

• C. ATCO (Ambient Temperature Catalytic Oxidizer) - turns CO into CO2

Air Revitalization System (ARS) – cleans used air

• Air Revitalization System (ARS) – cleans used air

• A. Gas Analyzers: check levels of O2, toxic gases; O2 added automatically as needed

• B. CDRA – Carbon Dioxide Removal Assembly - rechargeable CO2 removers

III. Supply and Waste Water – Panel ML31C

• III. Supply and Waste Water – Panel ML31C

• A. Fuel Cells

• -produce water as a by-product of electricity

• -purge for peak performance

• B. 5 tanks: 75 gallons total

• A – drinking water

• B,C,D – cooling system

• E – waste water

III. Supply and Waste Water A. Finite supply brought via Progress or Shuttle

• III. Supply and Waste Water A. Finite supply brought via Progress or Shuttle

• B. May 2009: total recycling via Boeing’s Water Recovery and

• Management Subsystem