Encyclopedia of Environmental Science and Engineering, Volume I and II

WATER AND WASTE MANAGEMENT SYSTEMS IN SPACE 1243

ECLSS

Temperatureand HumidityControl (THC)

AtmosphereControl andSupply (ACS)

AtmosphereRevitalization

(AR)

Fire Detection

and

Suppression

(FDS)

Water

Recovery andManagement

(WRM)

Waste

Management

(WM)

AirTemperatureControlHumidityControlAirParticulateControlVentilationIntermoduleVentilationAvionics AirCoolingRefrigerator/Freezers

EVASupport

UrineProcessingCombinedPotable/HygieneProcessingOnline WaterQualityMonitoringEVA SupportFuel Cell WaterTransfer/StorageContaminationRecoveryExperimentSupport

WasteStorage &ReturnFecalWasteProcessingUrineCollection andPretreatment

O Vent & Relief

/N 2

2

Pressure

ControlO

2

/N

Storage 2

O

2

/N

2

DistributionExperimentSupportContingencyGasSupport

CO

Removal 2

CO

Venting 2

Tr a c eContaminantControlMajorConstituentMonitoringTraceContaminantMonitoring

Fire DetectionFireSuppression

WaterDistributionWater Venting

O

2

GenerationCO

2

Reduction(SCAR)

FIGURE 1

Space Station Alpha Environmental Control and Life Support System (ECLSS) Functions.

Source:

Ref. 4.

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