REGENERATIVE LIFE SUPPORT - INPUTS AND OUTPUTS


From: Space Station Freedom Design Parameters - NASA SSP 30362 (1990).

 

INPUTS - kg/person/day

Oxygen -- 0.83

Dry Food -- 0.62

Water in Food --1.15

Food Preparation Water -- 0.79

Drinking Water -- 1.61

Oral Hygiene Water -- 0.36

Hand and Face Wash Water -- 1.81

Shower Water -- 5.44

Clothes Wash Water -- 12.47 *

Dish Wash Water -- 5.44

Urinal/Comode Flush Water - 0.49

Total: 31.0 kg/person/day

 

OUTPUTS - kg/person/day

Carbon Dioxide -- 1.00

Water from Respiration and Perspiration -- 2.28

Urine -- 1.50

Urine Solids -- 0.06

Hygiene Water -- 7.18

Latent (Evaporated) Hygiene Water - 0.44

Clothes Wash Water -- 11.87 *

Latent (Evaporated) Clothes Wash Water -- 0.60*

Latent (Evaporated) Food Preparation Water -- 0.04

Dish Wash Water -- 5.41

Latent (Evaporated) Dish Wash Water -- 0.03

Feces Solids -- 0.03

Feces Water -- 0.09

Sweat Solids -- 0.02

Urinal and Commode Flush Water -- 0.49

Total: 31.0 kg/person/day

* No Clothes Washing Capability for International Space Station Alpha.


From: Wydeven, T., and Golub, M.A., Generation Rates and Chemical Compositions of Waste Streams in a Typical Crewed Space Habitat, NASA TM-102799, NASA Ames Research Center, Moffett Field, CA (1990).

 

OUTPUTS - kg/person/day

Carbon Dioxide -- 1.00

Water from Respiration and Perspiration -- 1.80-2.48

Urine -- 1.21-2.05

Urine Solids -- 0.059

Hygiene Water -- 5.4-5.5

Clothes Wash Water -- 12.5

Dish Wash Water -- 5.4

Feces Solids -- 0.0205-0.03

Feces Water -- 0.075-0.111

Sweat Solids -- 0.016-0.02

Urinal and Commode Flush Water -- 0.494


From: Webb, P., Ed., Bioastronautics Data Book, NASA SP-3006, National Aeronautics and Space Administration, Washington, D.C. (1964).

 

OUTPUTS - Flatus

Generation Rate = 0.1-2.8 kg/person/day

Chemical Composition (%)

Carbon Dioxide -- 9.0-9.7

Oxygen -- 3.5-3.9

Methane -- 3.1-7.2

Hydrogen -- 12.0-20.9

Nitrogen -- 59.0-70.0

Hydrogen Sulfide -- 0.0002-0.0003

 

 


Copyright © 1996, James E. Atwater