A Chemical Containment Model for the General Purpose Work StationContamination control is a critical safety requirement imposed on experiments flying on board the Spacelab. The General Purpose Work Station, a Spacelab support facility used for life sciences space flight experiments, is designed to remove volatile compounds from its internal airpath and thereby minimize contamination of the Spacelab. This is accomplished through the use of a large, multi-stage filter known as the Trace Contaminant Control System. Many experiments planned for the Spacelab require the use of toxic, volatile fixatives in order to preserve specimens prior to postflight analysis. The NASA-Ames Research Center SLS-2 payload, in particular, necessitated the use of several toxic, volatile compounds in order to accomplish the many inflight experiment objectives of this mission. A model was developed based on earlier theories and calculations which provides conservative predictions of the resultant concentrations of these compounds given various spill scenarios. This paper describes the development and application of this model.
Document ID
19960044603
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Flippen, Alexis A. (University of Southern Colorado Pueblo, CO United States)
Schmidt, Gregory K. (NASA Headquarters Washington, DC United States)
Date Acquired
August 17, 2013
Publication Date
January 1, 1994
Publication Information
ISSN: 0148-7191
Subject Category
Ground Support Systems And Facilities (Space)
Report/Patent Number
NASA-CR-202074NAS 1.26:202074SAE-941286
Meeting Information
Meeting: Europeon Symposium on Space Environmental Control Systems