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Thermal Conductivity of Nine Poiyatomic Gases at Low Density

By Uribe, F. J.

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Book Id: WPLBN0000659579
Format Type: PDF eBook
File Size: 1.11 MB.
Reproduction Date: 2005
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Title: Thermal Conductivity of Nine Poiyatomic Gases at Low Density  
Author: Uribe, F. J.
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Language: English
Subject: Technology., Reference materials, Technology and literature
Collections: Techonology eBook Collection
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Uribe, F. J. (n.d.). Thermal Conductivity of Nine Poiyatomic Gases at Low Density. Retrieved from http://hawaiilibrary.net/


Description
Technical Reference Publication

Excerpt
Introduction: Temperature-dependent dimensionless factor needed in the calculation of AzEqs. (A10) and (C6c) Planck constant, Table B1 Boltzmann constant, Table B1 mass of a molecule molecular weight Avogadro constant, Table B1 Prandtl number, Eq. (2) universal gas constant, Table B1 temperature reduced temperature, T / E short-range energy parameter of intermolecular exponential repulsion high-temperature scaling parameter, V, E Accurate correlations and predictions of the equilibrium and transport properties of gases and gas mixtures are needed as elements for data bases for the design or optimization of many processes and devices of industrial importance. For low-density gases this need has been partially met for a number of simple gases, thanks to the existence of a highly developed kinetic theory and of a principle of corresponding states for molecular interactions. However, the complexity of the thermal conductivity of molecular gases, and its dependence on molecular internal degrees of freedom and delta.

Table of Contents
Contents 1. Introduction ............................ 1124 2. Methodology.. .......................... 1125 3. Functionals and Parameters. ............... 11 25 4. Experimental Data ....................... 1125 5. Validation, Deviation Plots, and Accuracy . . 1126 6. Description of the Tables ................. 1 127 7. Tables .................................. 1127 8. Acknowledgments. ....................... 1 13 1 9. References to Introductory Text ........... 1131 Appendix A. General Formulas. ............... 1 13 1 Appendix B. Material and Physical Constants In- cluding Scaling Factors .......... 1132 Appendix C. Correlation Equations for Functionals ............................. 1133 Appendix D. Deviation Plots. ................. 1134 Appendix E. References for Deviation Plots .... 1136 List of Tables 1. Conductivity of nitrogen (N2). ............. 1127 2. Conductivity of oxygen (OZ).. ............. 1127 3. Conductivity of nitric oxide (NO) .......... 1128 4. Conductivity of carbon monoxide (CO) ..... 1128 5. Conductivity of carbon dioxide (C02). ...... 1129 6. Conductivity of nitrous oxide (N20). ....... 1129 7. Conductivity of methane ((2%) ............ 1130 01990 by the U.S. Secretary of Commerce on behalf of the United States. This copyright is assigned to the American Institute of Physics and the American Chemical Society. Reprints available from ACS; see Reprints List at back of issue. 8. Conductivity of carbon tetrafluoride (CF4) . . 1130 9. Conductivity of sulfur hexafluoride (SFJ. ... 1131 B 1. Universal Constants ...................... 1 132 B2. Molecular Weights ....................... 1132 B3. Effective spherical scaling parameters, ..... 1132 B4. Material parameters for the calculation of D,, and A ................................... 1132 C 1. Values of T&,, for switching from Eq. (C5a) to Eq. (C5b) for pD,Jq. .................... 1134 List of Figures Dl. Deviation plot for the thermal conductivity ofN .................................. 1134 D2. Deviation plot for the thermal conductivity of 0,. ................................. 1134 D3. Deviation plot for the thermal conductivity of NO ................................. 1 134 D4. Deviation plot for the thermal conductivity of CO ................................. 1135 D5. Deviation plot for the thermal conductivity of COa.. ............................... 1135 D6. Deviation plot for the thermal conductivity ofN20 ................................1 135 D7. Deviation plot for the thermal conductivity of CH,. ................................ 1135 D8. Deviation plot for the thermal conductivity of CF4. ................................ 1136 D9. Deviation plot for the thermal conductivity of SF6... .............................. 1136 D10. Correlation plot between Prandtl number and rotational collision number ............... 1136 0047-2689/90/051123-14/$05.00 1123 J. Phys. Chem. Ref. Data, Vol. 19, No. 5, 1990

 

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