Gaseous contaminant removal by adsorption.
Correlation and prediction of adsorption levels of gaseous contaminants for removal from space cabin atmospheres
SPACECRAFT CONTAMINATION↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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A hydrogen air detector suitable for use aboard spacecraft Final report
Catalytic type sensing system for detecting hydrogen-air mixtures in spacecraft cabin atmospheres
Levine, R. J.↗
Application of gas chromatography in manned space flight.
Gas chromatography system for trace contaminants detection in space cabin atmosphere and suit gas during manned space flight
Lem, J. D., Jr.↗
Carbon dioxide control for manned spacecraft.
Carbon dioxide removal and control methods for manned spacecraft cabin atmospheres, comparing Molecular Sieve regenerative sorber and LiOH nonregenerative systems
Martin, R. B.↗
Compendium of Human Responses to the Aerospace Environment. Volume 3 - Sections 10-16
Human responses to spacecraft cabin atmosphere, pressure, and contamination, and water supply, diet, and anthropometry
Roth, E. M.↗
Evaluation of ignition mechanisms in selected spacecraft materials Final report, 1 Mar. - 30 Jun. 1967
Evaluation of ignition mechanisms for spacecraft materials in simulated spacecraft cabin atmospheres
Gerstein, M.↗
Feasibility study of clathrates for carbon dioxide removal, 13 September 1968 - 12 March 1969
Feasibility of clathrate compounds for carbon dioxide removal from space cabin atmospheres
Rajan, K. S.↗
Space Clinical Medicine.
Book on space clinical medicine covering hypoxia, ebullism, decompression, aerotitis, dehydration, hypothermia, cabin atmosphere contamination, urinary calculus, etc
Busby, D. E.↗
Water electrolysis
Water electrolysis system for carbon dioxide reduction and oxygen generation in closed cabin atmosphere
Source record↗
CO2 removal and concentration
Steam desorbed resin for carbon dioxide removal in spacecraft cabin atmosphere
Source record↗
Toxicological screening of space cabin materials
Toxicological screening of spacecraft materials exposed to space cabin atmospheres
Kleineberg, G. A.↗
Decompression sickness in simulated Apollo space-cabins.
Apollo space cabin atmospheres, evaluating diluent N effect on decompression sickness in intermittently exercising men
Allen, T. H.↗
Estimating carbon monoxide exposure
Method predicts effects of carbon monoxide on astronauts confined in spacecraft cabin atmospheres. Information on need for low toxicity level also applies to confined spaces. Benefits are applicable to industry and public health.
Edgerley, R. H.↗
Oxygen reclamation with solid oxide electrolytes
Electrolyte operated at an elevated temperature in an electrolysis cell regenerates oxygen from metabolic carbon dioxide found in closed-cycle cabin atmospheres.
Smart, W.↗
The Orbiter ETC/LSS in terms of the unique space shuttle requirements.
Consideration of factors which have a significant impact on environmental and thermal control/life support system (ETC/LSS) design. The first area involves thermal management and consideration of the tradeoffs for heat sink selection and cabin atmosphere control (since both have a major effect on ETC/LSS weight and cost). Then consideration is given to system design sensitivity to varying crew size, use of air-cooled avionics, and other factors.
Rousseau, J.↗
The development of a non-cryogenic nitrogen/oxygen supply system
Development of the hydrazine/water electrolysis process in a manned spacecraft to provide metabolic oxygen and both oxygen and nitrogen for cabin leakage makeup was studied. Electrode development efforts were directed to stability, achieved with catalyst additives and improved processing techniques, and a higher hydrazine conversion efficiency, achieved by reducing catalyst loading on the cathodes. Extensive testing of the one-man breadboard N2/02 system provided complete characterization of cabin atmosphere control aspects. A detailed design of a prototype modular N2/02 unit was conducted. The contact heat exchanger which is an integral component of this design was fabricated and sucessfully design-verification tested.
Greenough, B. M.↗
The relationship of NASA occupational medicine and environmental health with the Advisory Center on Toxicology
Preventive measures of occupational medicine and industrial hygiene are coordinated to identify toxicities of industrial products and safety standards in manned space flight applications. Emphasized is the off-gassing of construction materials in spacecraft with the resulting contamination of the cabin atmosphere and the establishment of criteria for the quality of drinking water for astronauts during Gemini and Apollo programs.
Wands, R. C.↗
Solid amine development program
A regenerable solid amine material to perform the functions of humidity control and CO2 removal for space shuttle type vehicle is reported. Both small scale and large scale testing have shown this material to be competitive, especially for the longer shuttle missions. However, it had been observed that the material off-gasses ammonia under certain conditions. This presents two concerns. The first, that the ammonia would contaminate the cabin atmosphere, and second, that the material is degrading with time. An extensive test program has shown HS-C to produce only trace quantities of atmospheric contaminants, and under normal extremes, to have no practical life limitation.
Lovell, J. S.↗