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  • Articles  (9)
  • thermal conductivity  (9)
  • Springer  (9)
  • American Chemical Society (ACS)
  • American Geophysical Union
  • Cell Press
  • Institute of Physics
  • National Academy of Sciences
  • 2015-2019
  • 2005-2009
  • 1990-1994
  • 1980-1984  (9)
  • 2017
  • 2005
  • 1983  (9)
  • Physics  (9)
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  • Process Engineering, Biotechnology, Nutrition Technology
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  • Articles  (9)
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  • Springer  (9)
  • American Chemical Society (ACS)
  • American Geophysical Union
  • Cell Press
  • Institute of Physics
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  • 2015-2019
  • 2005-2009
  • 1990-1994
  • 1980-1984  (9)
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  • Physics  (9)
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  • Process Engineering, Biotechnology, Nutrition Technology
  • 1
    Electronic Resource
    Electronic Resource
    Thermal conductivity measurement of n-butane over wide temperature and pressure ranges (1983)
    Springer
    International journal of thermophysics 4 (1983), S. 11-33 
    Details
    ISSN: 1572-9567
    Keywords: butane ; corresponding states ; critical region ; thermal conductivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The thermal conductivity of n-butane has been measured by a coaxial-cylinder method over a pressure range from 0.1 MPa up to 70 MPa and a temperature range from room temperature to 600 K, covering all fluid states. The estimated accuracy of the method is about 2%. Special emphasis has been given to the behavior of the thermal conductivity near the critical point, and the critical enhancement has been studied for 3.6 K〈δT〈176 K. The effect of inelastic collisions upon transport properties of the dilute gas has been discussed. The results obtained for the reduced critical enhancement as a function of the reduced critical temperature confirm the universality of the critical exponent, for the n-alkanes, whereas the reduced excess thermal conductivity outside the critical region is a function of the reduced density and of the n-alkane.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00504479
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  • 2
    Electronic Resource
    Electronic Resource
    Measurement of thermal conductivity, heat capacity, and thermal diffusivity of sulfur and selenium in the liquid state (1983)
    Springer
    International journal of thermophysics 4 (1983), S. 115-125 
    Details
    ISSN: 1572-9567
    Keywords: heat capacity ; selenium ; sulfur ; thermal conductivity ; thermal diffusivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The thermal properties (thermal activity, heat capacity, thermal conductivity, and thermal diffusivity) of liquid sulfur and selenium were measured in the temperature range 160–400°C. These measurements were performed using an experimental apparatus, based on the ac heated-wire (strip) technique. Liquid sulfur shows a second order phase transition at 225°C. The present study has considered four different mechanisms of heat transfer: conduction, electrons, internal electromagnetic radiation, and convection. The results showed that heat transfer is mainly due to conduction, whereas that due to electrons and electromagnetic radiation is very small indeed. Suppression of convection by the cell configuration was studied, as well as the effect of locating the strip or the wire in horizontal form, which permits heat flow in one direction. Moreover, stability of the third harmonic shows that there is no hydrodynamic flow inside the liquid, which means that the convection is taken in consideration within the time of measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00500135
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  • 3
    Electronic Resource
    Electronic Resource
    Thermal conductivity of toluene in the temperature range 35–90°C at pressures up to 600 MPa (1983)
    Springer
    International journal of thermophysics 4 (1983), S. 311-327 
    Details
    ISSN: 1572-9567
    Keywords: high pressure ; thermal conductivity ; toluene ; radiation contribution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract New, absolute measurements of the thermal conductivity of liquid toluene are reported. The measurements extend over the temperature range 35–90°C and the pressure range 0.8–600 MPa. A new analytic evaluation of the contribution of radiation in an absorbing emitting fluid to the measurement process is presented. This analysis indicates that the thermal conductivity determined in a transient hot-wire instrument is the radiation-free value. As a consequence it is possible to assert that the overall uncertainty in the experimental data is one of ± 0.3%. A comparison of the data with the results of independent measurements by the same technique shows that the various sets of data are consistent within their mutual uncertainty.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01178782
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  • 4
    Electronic Resource
    Electronic Resource
    Thermal conductivity of five hydrocarbons along the saturation line (1983)
    Springer
    International journal of thermophysics 4 (1983), S. 193-208 
    Details
    ISSN: 1572-9567
    Keywords: alkanes ; hydrocarbons ; liquids ; thermal conductivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The paper presents the results of new, absolute measurements of the thermal conductivity of five alkanes as a function of temperature at their saturation vapor pressure. The alkanes studied include the four normal alkanes n-octane, n-nonane, n-undecane, and n-tetradecane as well as the branched alkane, iso-octane. The results, which extend over the temperature range 282–373 K, have an estimated uncertainty limit of 1.5% deriving mainly from a correction for the effects of radiation absorption in the measurement process. The results are employed to generate effective core volumes for the fluids studied which may be employed to predict the density dependence of the thermal conductivity by means of an existing correlation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00502352
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  • 5
    Electronic Resource
    Electronic Resource
    Thermophysical properties of polycrystalline PbS, PbSe, and PbTe in the temperature range 300–700 K (1983)
    Springer
    International journal of thermophysics 4 (1983), S. 261-269 
    Details
    ISSN: 1572-9567
    Keywords: electrical conductivity ; heat capacity ; lead chalcogenides ; thermal conductivity ; thermal diffusivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Thermal properties (thermal conductivity λ, thermal diffusivity a, and specific heat capacity c p of polycrystalline PbS, PbSe, and PbTe were measured in the temperature range 300–700 K. The electrical conductivity was also measured for the three substances. Lattice, electronic and bipolar components of thermal conductivity are much larger than the electronic part. The specific heat capacity is observed to increase slightly with temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00502357
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  • 6
    Electronic Resource
    Electronic Resource
    Development of a database system for the thermophysical properties of 340 pure fluids (1983)
    Springer
    International journal of thermophysics 4 (1983), S. 283-294 
    Details
    ISSN: 1572-9567
    Keywords: compressibility factor ; database system: density ; dielectric constant ; refractive index ; retrieval program ; specific enthalpy ; specific entropy ; specific heat capacity ; specific volume ; surface tension ; thermal conductivity ; vapor pressure ; viscosity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new database system was designed and constructed in order to provide the newest and most reliable numerical data on thermophysical properties of fluids to the scientific and technical community as quickly as possible. The database is concerned with 12 kinds of property data: density, specific volume, compressibility factor, vapor pressure, specific heat, specific enthalpy, specific entropy, viscosity, thermal conductivity, surface tension, refractive index, and dielectric constant of 340 pure fluids under all conditions of seven convenient physical states. Only the most probable data, which were critically evaluated in advance, are compiled as functions of temperature and pressure in the form of either numerical data tables or correlation formulas. Property values at desired grid points of temperature and pressure can be obtained in SI units directly or by interpolations with some supplementary information, such as the grade of reliability, source bibliography, and fundamental physical constants of the fluid. The database is usable as conversational processing by TSS, the tabulation of property data in a batch processing, and one of the subroutine libraries in the computation of a user's program. Ten kinds of application programs are prepared for multipurpose retrievals so that anyone can use the database without any special knowledge of the structure or machine languages of this system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01178780
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  • 7
    Electronic Resource
    Electronic Resource
    Thermal conductivity of carbon disulphide at pressures up to 500 MPa (1983)
    Springer
    International journal of thermophysics 4 (1983), S. 1-10 
    Details
    ISSN: 1572-9567
    Keywords: carbon disulphide ; high pressure ; thermal conductivity ; transport properties
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The paper presents new, absolute measurements of the thermal conductivity of carbon disulphide in the temperature range 36–74
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00504478
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  • 8
    Electronic Resource
    Electronic Resource
    Thermal conductivity of LaCoO3 (1983)
    Springer
    International journal of thermophysics 4 (1983), S. 183-188 
    Details
    ISSN: 1572-9567
    Keywords: LaCoO3 ; thermal conductivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The thermal conductivity of LaCoO3 was measured in air between 300 and 900 K. The conductivity increased sharply from 3.2 to 17.0 W · m−1 · K−1 in this temperature range and showed good agreement with previously published data. An excitonic mode of conduction due to the interaction of the high-low spin states of cobalt is found to be the main contribution to the measured thermal conductivity. Contributions of the other modes of conduction and the excitonic mean free path have been calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00500141
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  • 9
    Electronic Resource
    Electronic Resource
    Thermal conductivity of mixtures of polyatomic gases at low and moderate density (1983)
    Springer
    International journal of thermophysics 4 (1983), S. 295-309 
    Details
    ISSN: 1572-9567
    Keywords: gas mixtures ; polyatomic gases ; thermal conductivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The paper discusses the prediction of the thermal conductivity of gas mixtures containing polyatomic components at low and moderate density. The prediction scheme adopted is based upon the rigorous kinetic theory of gases and makes use of other thermophysical properties of the pure gases and binary mixtures in the evaluation of the thermal conductivity. Comparisons with accurate experimental data indicate that only for systems in which the mass ratio of the species is near unity and for which inelastic collisions are rare, is a reliable prediction of the mixture thermal conductivity at low density possible. On the other hand, the density dependence of the thermal conductivity is quite accurately represented for most systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01178781
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