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  • 1
    Electronic Resource
    Electronic Resource
    Thermodynamic behavior of mixtures of methane and ethane in the critical region (1993)
    Springer
    International journal of thermophysics 14 (1993), S. 1187-1200 
    Details
    ISSN: 1572-9567
    Keywords: binary mixtures ; critical phenomena ; equation of state ; ethane ; methane ; plait point ; specific heat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An isomorphic equation of state for near-critical binary mixtures is used to represent equation of state and specific heat data for mixtures of methane and ethane in a substantial range of densities and temperatures around the critical line.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00503681
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  • 2
    Electronic Resource
    Electronic Resource
    Crossover behavior of the transport coefficients of critical binary mixtures (1994)
    Springer
    International journal of thermophysics 15 (1994), S. 283-308 
    Details
    ISSN: 1572-9567
    Keywords: binary mixtures ; critical phenomena ; ethane: methane ; thermal conductivity ; transport coefficients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The behavior of the transport coefficients related to diffusion, heat conduction, and their cross-processes in fluid mixtures near the consolute point and the liquid-vapor critical line is investigated. Simple crossover equations for the critical enhancement of those coefficients are developed by incorporating a finite cutoff and time-dependent correlation functions of the order parameter and of the entropy into decoupled-mode theory integrals. It is shown that the thermal conductivity of a binary mixture is nondivergent and the crossover from the critical background in the critical point to the regular background far from the critical point is elucidated. The crossover to the behavior of the thermal conductivity in the one-component limit is also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01441587
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  • 3
    Electronic Resource
    Electronic Resource
    Universal crossover behavior of fluids and fluid mixtures in the critical region (1991)
    Springer
    International journal of thermophysics 12 (1991), S. 877-895 
    Details
    ISSN: 1572-9567
    Keywords: critical phenomena ; crossover equation of state ; specific heat ; aqueous ionic solutions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new universal scaled equation of state for one-component fluids, binary mixtures, and ionic solutions, which represents the thermodynamic behavior of fluids in a wide range of temperatures and densities including the critical region, is proposed. Near the critical point this equation reduces to a theoretically based scaled equation including the leading nonasymptotic (Wegner) correction and a correction accounting for the asymmetry of fluids with respect to the critical isochore. Far away from the critical point the new equation goes over into the classical Landau expansion (van der Waals equation). The new equation is applied to represent experimental P-V-T data for H2O and CO2, as well as to represent C v,x data for dilute aqueous solutions of NaCl. A crossover from fluctuation to mean-field behavior is observed at increased concentrations of NaCl. A universal crossover function for the heat capacity C v,x of one-component fluids and binary mixtures is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00502413
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  • 4
    Electronic Resource
    Electronic Resource
    Transport properties of critical dilute solutions (1992)
    Springer
    International journal of thermophysics 13 (1992), S. 873-893 
    Details
    ISSN: 1572-9567
    Keywords: critical line ; critical phenomena ; dilute solutions ; thermal-conductivity ; transport properties ; vapor-liquid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract On the basis of the isomorphism of critical phenomena, the behavior of transport properties of binary mixtures in the vicinity of the vapor-liquid critical line is considered. In particular, the renormalization of the singularity of the thermal conductivity in dilute critical solutions has been analyzed in detail. It is shown that the behavior of the thermal conductivity is determined by the “critical background,” i.e., the fluctuation-induced regular part, which diverges at the critical point of a solvent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00503913
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  • 5
    Electronic Resource
    Electronic Resource
    An improved parametric crossover model for the thermodynamic properties of fluids in the critical region (1993)
    Springer
    International journal of thermophysics 14 (1993), S. 1-32 
    Details
    ISSN: 1572-9567
    Keywords: critical phenomena ; equation of state ; ethane ; methane ; sound velocity ; specific heat ; thermodynamic properties
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An improved parametric equation for the thermodynamic properties of fluids is presented that incorporates the crossover from singular thermodynamic behavior in the immediate vicinity of the critical point to regular thermodynamic behavior far away from the critical point. Based on a comparison with experimental data for ethane and methane, it is demonstrated that the crossover model is capable of representing the thermodynamic properties of fluids in a large range of temperatures and densities around the critical point.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00522658
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  • 6
    Electronic Resource
    Electronic Resource
    Scaled equation for the isochoric heat capacity of methane-ethane mixtures in the critical region (1988)
    Springer
    International journal of thermophysics 9 (1988), S. 453-464 
    Details
    ISSN: 1572-9567
    Keywords: critical phenomena ; ethane ; heat capacity ; methane ; mixtures
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Results of an experimental study of the isochotic heat capacity of methaneethane mixtures in a wide region around the liquid-gas critical line are presented. The data are represented by a universal scaled equation for critical mixtures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00513083
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  • 7
    Electronic Resource
    Electronic Resource
    Experimental and theoretical studies of the crossover behavior of the specific heat Cv,x of ethane, propane, and their mixture at critical isochores (1996)
    Springer
    International journal of thermophysics 17 (1996), S. 423-440 
    Details
    ISSN: 1572-9567
    Keywords: critical phenomena ; crossover equation ; ethane ; propane ; specific heat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The specific heat at constant volume, Cv, of propane, and mixture with a concentration ofx=0.0081 cool fraction of propane was measured along the critical isochores at temperatures between 290 and 400 K. The measurements were performed with a high-temperature constant-volume adiabatic calorimeter. The uncertainty of most of the measurements is estimated to be less than 1.5%. Measurements have been carried out in both the one- and two-phase regions. The results for the pure components are compared with earlier measurements. Crossover equations forC, obtained on the basis of the renormalization-group method and ɛ-expansion are applied to represent our experimental specific heat data for ethane, propane. and its mixture along the critical isochores.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01443401
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  • 8
    Electronic Resource
    Electronic Resource
    Thermodynamic behavior of mixtures of methane and ethane in the critical region (1993)
    Springer
    International journal of thermophysics 14 (1993), S. 1187-1200 
    Details
    ISSN: 1572-9567
    Keywords: binary mixtures ; critical phenomena ; equation of state ; ethane ; methane ; plait point ; specific heat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An isomorphic equation of state for near-critical binary mixtures is used to represent equation of state and specific heat data for mixtures of methane and ethane in a substantial range of densities and temperatures around the critical line.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02431283
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  • 9
    Electronic Resource
    Electronic Resource
    Crossover equation of state for the thermodynamic properties of mixtures of methane and ethane in the critical region (1996)
    Springer
    International journal of thermophysics 17 (1996), S. 909-944 
    Details
    ISSN: 1572-9567
    Keywords: critical phenomena ; equation of state ; ethane ; methane ; plait point ; thermodynamic properties
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present an equation of state for the thermodynamic properties of mixtures of methane and ethane in the critical region that incorporates the crossover from singular thermodynamic behavior near the locus of vapor-liquid critical points to regular thermodynamic behavior outside the critical region. The equation of state yields a satisfactory representation of the thermodynamic-property data for the mixtures in a large range of temperatures and densities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01439196
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  • 10
    Electronic Resource
    Electronic Resource
    A scaled equation of state for real fluids in the critical region (1985)
    Springer
    International journal of thermophysics 6 (1985), S. 465-481 
    Details
    ISSN: 1572-9567
    Keywords: critical phenomena ; equation of state ; scaling laws ; steam ; thermodynamic properties
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A scaled equation of state is proposed for real fluids in the critical region which incorporates asymmetry with respect to the critical isochore. In the range of reduced densities 0.65⩽(θ/θ c)⩽1.4 and for reduced temperatures (T/T c)⩽1.2, the equation represents P-V-T data for steam within the experimental accuracy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00508891
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