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  • compressible flow  (1)
  • critical region  (1)
  • parallel-plate apparatus  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    The thermal conductivity of ethane in the critical region (1989)
    Springer
    International journal of thermophysics 10 (1989), S. 409-415 
    Details
    ISSN: 1572-9567
    Keywords: critical region ; ethane ; thermal conductivity ; thermal diffusivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The thermal conductivity of ethane in the critical region has been measured isochorically at densities up to 1.76 times the critical density and at temperatures down to 0.13 K above the critical temperature. The measurements were performed with a thermal conductivity apparatus based on the parallelplate method. The experimental accuracy was 0.5 to 5%, depending on the distance to the critical point. The experimental results agree well with a recently developed crossover theory for the thermal diffusivity of fluids in the critical region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01133537
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  • 2
    Electronic Resource
    Electronic Resource
    Thermal effects in compressible viscous flow in a capillary (1993)
    Springer
    International journal of thermophysics 14 (1993), S. 865-892 
    Details
    ISSN: 1572-9567
    Keywords: capillary flow ; compressible flow ; entry length ; expansion cooling ; temperature field ; viscous dissipation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The thermal effects for a compressible viscous flow in a capillary have been calculated by solving the equation of energy, where a parabolic profile is assumed for the axial flow velocity. It is shown that, in general, the temperature changes are small (a few millikelvins), consistent with the current assumption of an isothermal flow, except in the case of a critical, i.e., very compressible, fluid where the cooling can be substantial. This effect is demonstrated numerically on the basis of a flow of ethylene in nearly critical circumstances.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00502113
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  • 3
    Electronic Resource
    Electronic Resource
    Measurements of the thermal conductivity of nitrogen with a parallel-plate instrument (1990)
    Springer
    International journal of thermophysics 11 (1990), S. 597-601 
    Details
    ISSN: 1572-9567
    Keywords: measurement techniques ; nitrogen ; parallel-plate apparatus ; thermal conductivity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A parallel-plate apparatus is suited for accurate measurements of the thermal conductivity coefficient of fluids over a wide range of densities. This is illustrated by measurements of the thermal conductivity coefficient of nitrogen at a temperature of 308.15 K and at pressures up to 20.1 MPa with an accuracy of 0.5%. The agreement with a recent correlation based on accurate measurements by other authors is satisfactory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00500849
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