New pressure-density-temperature measurements and new rational equations for the saturated liquid and vapour densities of oxygen

Pentermann, W.; Wagner, Wolfgang

doi:10.1016/0021-9614(78)90033-2

Cited by 41 publications

(7 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The new measurements and correlation show significant differences between presently available literature from Duan et al (1996 12,15 as well as from REFPROP 18 software [where the EoS 17 is mostly based on the critical parameters and data by Duan et al (1996 12−15 ]. Furthermore, saturated liquid density and vapor density correlations for the vapor liquid coexistence curve were optimized based on the present data (using equations based on Guggenheim's proposals 36 ). In both cases, the newly optimized correlations show larger deviations for densities close to the critical point compared to the EoS of Lemmon and Span (2015) 17 obtained through REFPROP 10.0.…”

Section: Discussionmentioning

confidence: 71%

“…By utilizing the saturated density measurements using both the direct meniscus method and the PvT method, the correlation eq based on Guggenheim’s proposals was optimized for representing the vapor liquid coexistence curve for the saturated liquid and saturated vapor phases separately by minimizing the absolute average deviation in density (AAD D ) in eq . For the liquid calculations, the functional form for D in eq is D =[(ρ′ s,Calc /ρ C )–1], while for the vapor calculations, D = ln(ρ″ s,Calc /ρ C ).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

PvT Properties, Saturation Pressures, Saturated Densities, and Critical Parameters of Trifluoroiodomethane (CF₃I; R-13I1)

et al. 2022

View full text Add to dashboard Cite

Measurements of PvT properties, saturated pressures, saturated densities, and critical parameters were carried out for R-13I1 (trifluoroiodomethane; CF 3 I). Forty-seven PvT property data in the one-phase region along seven isochores for R-13I1 were obtained in the temperatures between 310 and 405 K, pressures up to 6392 kPa, and densities between 48 and 1784 kg•m −3 using the isochoric method. Thirty-seven saturation pressure data for R-13I1 were obtained in the temperatures between 240 K and the critical temperature and pressures between 58 kPa and the critical pressure. Twenty-six saturated density data for R-13I1 were obtained by the observation of meniscus disappearance and the inflection points of the isochore in the densities between 48 and 1784 kg•m −3 . On the basis of these measurements, the critical temperature, critical density (critical molar volume), and critical pressure of R-13I1 were determined as T c = 396.495 ± 0.010 K (with a coverage factor, k = 2), ρ c = 865 ± 5 kg•m −3 (v c = 226.5 ± 1.3 cm 3 •mol −1 ) (bracketed interval), and P c = 3971 ± 3 kPa (with a coverage factor, k = 2), respectively. Moreover, a correlation for the saturation pressure and correlations for the vapor liquid coexistence curve were established by optimization techniques.

show abstract

Section: Discussionmentioning

confidence: 71%

Section: Resultsmentioning

confidence: 99%

PvT Properties, Saturation Pressures, Saturated Densities, and Critical Parameters of Trifluoroiodomethane (CF₃I; R-13I1)

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The changes of f 0 and Q are proportional to the coupled mass on the QCM, which is proportional to (ρη) 0.57,9 . By using reported data for ρ(T ) 21 and η(T ) 22 , we are able to plot f 0 and Q as a function of (ρη) 0.5 [Figs. 3(c)-(d)].…”

Section: Resultsmentioning

confidence: 99%

“…Here, we extracted η(H) by using the experimentally obtained (ρη) 0.5 [Fig. 4(c)] and ρ(H) which is estimated by extrapolating the data at 77 K from literature 12,21 . η(P ), η(T ), and η(H) scale well with ρ.…”

Section: Figures 4(a) and 4(b)mentioning

confidence: 99%

Viscosity measurements in pulsed magnetic fields by using a quartz-crystal microbalance

Nomura

Жерлицын

Kohama

et al. 2019

Review of Scientific Instruments

View full text Add to dashboard Cite

Viscosity measurements in combination with pulsed magnetic fields are developed by use of a quartz-crystal microbalance (QCM). When the QCM is immersed in liquid, the resonant frequency, f 0 , and the quality factor, Q, of the QCM change depending on (ρη) 0.5 , where ρ is the mass density and η the viscosity. During the magnetic-field pulse, f 0 and Q of the QCM are simultaneously measured by a ringdown technique. The typical resolution of (ρη) 0.5 is 0.5 %. As a benchmark, the viscosity of liquid oxygen is measured up to 55 T.

show abstract

“…The extrapolation of eq 10 to the vapor pressure is very short; thus, it makes a negligible contribution to the uncertainty of the results. The saturated liquid densities were correlated with the function used by Pentermann and Wagner (1978):…”

Section: F/g‚cm -3mentioning

confidence: 99%

Thermodynamic Properties of HFC-338mccq, CF₃CF₂CF₂CH₂F, 1,1,1,2,2,3,3,4-Octafluorobutane

et al. 1997

View full text Add to dashboard Cite

We report the thermodynamic properties of 1,1,1,2,2,3,3,4-octafluorobutane, which has been designated as HFC-338mccq by the refrigeration industry. The measurements span the temperature and pressure ranges encountered in thermal machinery. The properties measured include the vapor pressure, the density of the compressed liquid, the refractive index of both the saturated liquid and the saturated vapor, the critical temperature, the capillary rise, and the speed of sound in the vapor phase. These data were used to determine the ideal gas heat capacity, the saturated liquid and vapor densities, the surface tension, the virial equation of state for the vapor phase, and estimates of the critical pressure and density. A Carnahan-Starling-DeSantis equation of state was deduced from the measured fluid properties.

show abstract

New pressure-density-temperature measurements and new rational equations for the saturated liquid and vapour densities of oxygen

Cited by 41 publications

References 12 publications

PvT Properties, Saturation Pressures, Saturated Densities, and Critical Parameters of Trifluoroiodomethane (CF₃I; R-13I1)

PvT Properties, Saturation Pressures, Saturated Densities, and Critical Parameters of Trifluoroiodomethane (CF₃I; R-13I1)

Viscosity measurements in pulsed magnetic fields by using a quartz-crystal microbalance

Thermodynamic Properties of HFC-338mccq, CF₃CF₂CF₂CH₂F, 1,1,1,2,2,3,3,4-Octafluorobutane

Contact Info

Product

Resources

About

New pressure-density-temperature measurements and new rational equations for the saturated liquid and vapour densities of oxygen

Cited by 41 publications

References 12 publications

PvT Properties, Saturation Pressures, Saturated Densities, and Critical Parameters of Trifluoroiodomethane (CF3I; R-13I1)

PvT Properties, Saturation Pressures, Saturated Densities, and Critical Parameters of Trifluoroiodomethane (CF3I; R-13I1)

Viscosity measurements in pulsed magnetic fields by using a quartz-crystal microbalance

Thermodynamic Properties of HFC-338mccq, CF3CF2CF2CH2F, 1,1,1,2,2,3,3,4-Octafluorobutane

Contact Info

Product

Resources

About

PvT Properties, Saturation Pressures, Saturated Densities, and Critical Parameters of Trifluoroiodomethane (CF₃I; R-13I1)

PvT Properties, Saturation Pressures, Saturated Densities, and Critical Parameters of Trifluoroiodomethane (CF₃I; R-13I1)

Thermodynamic Properties of HFC-338mccq, CF₃CF₂CF₂CH₂F, 1,1,1,2,2,3,3,4-Octafluorobutane