Project Title:

Induced Contamination Environment of the Space Station

13.07-8581B
Induced Contamination Environment of the Space Station
Remtech, Inc.
3304 Westmill Drive
Huntsville
AL
35805
Engel
Carl, D.
36258
50,000
MSFC

Abstract:

The low earth orbit Space Station will produce a local gas cloud and resulting contamination
generated by (1)  outgassing from nonmetallic materials, (2)  early desorption from
external surfaces, (3)  leakage of the cabin atmosphere, (4)  venting of condensates,
and (5) reaction control plumes.  This very low density gas flow is best modeled
using Monte Carlo methods.  The key to useful engineering predictions with Monte
Carlo methods is to realistically include the gas chemistry which ultimately determines
the surface contamination state.  This effort is directed toward determining the
best way to include finite rate chemistry in Monte Carlo rarified gas flow field
solutions.