This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development of Nontoxic Heat Transport Fluids for Habitat Two-Phase Thermal Control Systems
Annotation ability available
Sector:
Language:
English
Abstract
We have successfully used techniques found in computational chemistry to identify a series of compounds for use as nontoxic heat transfer fluids for habitat two-phase thermal control systems. Our approach allows us to screen compounds, based on their molecular structure, where no thermodynamic data exists. Once compounds that have the desired properties are identified, their properties can be measured.
The key problem in developing the most efficient and versatile two-phase pumped fluid system is the selection of the appropriate working fluid. Although many fluids are good candidates in terms of their thermodynamic properties, they cannot be used inside pressurized, habitat volumes due to toxicity, flammability, and thermal stability concerns.
We used our computational chemistry approach based on pattern recognition techniques to correlate a molecules thermodynamic and chemical properties with its molecular structure, we have identified several perfluorocarbons that meet the NASA design requirements.
Recommended Content
Citation
Parrish, C. and Grzyll, L., "Development of Nontoxic Heat Transport Fluids for Habitat Two-Phase Thermal Control Systems," SAE Technical Paper 921364, 1992, https://doi.org/10.4271/921364.Also In
References
- Parrish, C. F. Grzyll L. R. “Development of Nontoxic Heat Transport Fluids for Habitat Two-Phase Thermal Control Systems,” Phase I Final Report NASA-Johnson Space Center Houston, TX July 31 1991
- Giarratano, P. J. Welch J. F. “Nontoxic Heat Transport Fluids for Spacecraft Two-Phase Heat Transport Systems,” National Aeronautics and Space Administration January 1990
- McLinden, M. O. “Working Fluid Selection for Space-Based Two-Phase Heat Transport Systems,” National Aeronautics and Space Administration May 1988
- Stuper, A. J. Brügger W. E. Jurs P. C. Computer Assisted Studies of Chemical Structure and Biological Function Wiley-Interscience New York 1979
- Lawson, R. W. Jurs P. “Cluster Analysis of Acrylates to Guide Sampling for Toxicity Testing,” J. Chem. Info. Com. Sci 30 137 144 1990
- Rohrbaugh, R. Jurs P. “Descriptions of Molecular Shapes Applied in Studies of Structure/Activity and Structure/Property Relationships,” Anal. Chem. Acta 199 99 109 1987
- Jurs, P. Sutton P. Ranc M. “Carbon-13 NMR Spectral Simulation,” Anal. Chem. 61 1989
- Sutton, G. Jurs P. “Simulation of Carbon-13 Nuclear Magnetic Resonance Spectra of Alkyl-Substituted Cyclohexanones and Decalones,” Anal. Chem. 61 863 871 1989
- McIntyre, M. Small G. “Carbon-13 Nuclear Magnetic Resonance Spectrum Simulation Methodology for the Structure Elucidation of Carbohydrates,” Anal Chem. 59 1805 1811 1987
- Rohrbaugh, R. Jurs P. “A Structure-Activity Relationship Study of Organophosphorus Compounds,” Chem. Res. Toxicol. 1 123 127 1988
- Smeeks, F. C. Jurs P. “Prediction of Alcohol Boiling Point from Molecular Structure,” Anal. Chim. Acta 233 111 19 1990
- “ADAPT Reference Manual, Revision 4.0,” Molecular Design Ltd. 1990
- Hahn, B. Riepe, G. “Fluorocarbon Gas Bubble Chamber,” Review of Sci. Inst. 29 184 1958
- Clayton, J. W. Jr, DeLaplane M. A. Hood D. B. “Toxicity Studies with Octafluorocyclobutane,” Industrial Hygiene J. 21 382 388 1960
- Rodgers, G. C. Cady G. H. “Pyrolysis of Perfluoro- n -pentane,” J. Chem. Soc. 3523 1951
- Grosse, A. V. Cady G. H. “Properties of Fluorcarbons,” Industrial and Engineering Chemistry 39 3 367 74 1947
- Park, J. D. Benning A. F. Downing F. B. Laucius J. F. McHarness R. C. Industrial and Engineering Chemistry 39 3 354 8 1947
- Liebman, J. F. Greenber A. Dolbier W. R. Fluorine-Containing Molecules - Structure, Reactivity, Synthesis, and Applications VCH Publishers, Inc. New York, N.Y. 319 1988
- Wydeven, T. “A Survey of Some Regerative Physico-Chemical Life Support Technology,” Ames Research Center Moffett Field, CA NASA Tech. Memo. 101004 Nov 1988
- Johnson Space Center March 1991
- Ammann, K. “Development of the Catalytic Oxidizer Technology for the European Space Program” 19th Intersociety Conf. Environ. Sys. San Diego, CA July 24 26 1989
- Sax, N. I. “ Dangerous Properties of Industrial Materials, ” Van Nostrand Reinhold Co. New York, N.Y. 1979
- Brown, H. C. “Thermal Reactions of Perfluorobutyne-2 and Perfluoropropene,” J. Org. Chem. 22 1256 7 1957
- Haxeldine, R. N. Smith F. “Organic Fluorides. Part VI. The Chemical and Physical Properties of Certain Fluorocarbons,” J. Chem. Soc. 603 4 1951
- Hauptschein, M. Fainberg A. H. Braid M. “The Thermal Dimerization of Perfluoropropene,” J. Am. Chem. Soc. 80 842 5 1958
- Gary, B. F. Pritchard H. O. “The Thermal Decomposition of Octadeuterocyclobutane and Octafluorocyclobutane,” J. Chem. Soc. 1002 4 1956
- Atkinson, B. Atkinson V. A. “The Thermal Decomposition of Tetrafluoroethylene,” J. Chem. Soc. 2086 94 1957
- Atkinson, B. Stockwell P. B. “The Kinetics of Dissociation and Isomerisation of Hexafluoro-1,2- bis -trifluoromethylcyclobutane,” J. Chem. Soc. (B) 984 9 1966
- Steunenberg, R. K. Cady G. H. “Pyrolysis of Fluorocarbons,” J. Am. Chem. Soc. 74 4165 8 1952