Human Inputs and Outputs

[archerships]

http://oregonstate.edu/~atwaterj/io.htm


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

Comments

[tall-man.livejournal.com]

I'd just hope that they screen the astronauts well enough that there's no 2.8 kg/day flatus generators up there. Eew.

[crasch.livejournal.com]

Agreed. Though I suspect someone shifted a decimal point erroneously. 2.8 Kg?!? You could weaponize someone with that much flatus...

[jenarael.livejournal.com]

It's interesting that "clothes wash water" is the biggest input variable on the list. This is the exact reason why living naked like australopithecines would be economical.

And dishes? Forget it. Let's turn the space-station into a free-range hunting ground and equip our scientists with spears. I can live off the land with nothing but a butane lighter and two large sticks!

...and this, darling man, is why anthropologists do not work for NASA.

[joe-tofu.livejournal.com]

Hadn't thought of nudity as a strategy. I'll incorporate that into my plans for interplanetary exploration. I imagine that clothing also acts as a sponge to trap those "sweat solids", dead skin cells, and other things that you'd prefer to recycle. A coed naked crew might have less of a "space ennui" problem on long voyages, too.

[crasch.livejournal.com]

But what would you be hunting...except...each other! NASA could even recoup some of their development costs by filming it -- sort of "Survivor" meets "Soylent Green".

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Why not edible clothes? Just imagine John Glenn in red licorice panties...