Measurements of the viscosity of carbon dioxide at temperatures from (253.15 to 473.15)K with pressures up to 1.2MPa

Schäfer, Michael; Richter, Markus; Span, Roland

doi:10.1016/j.jct.2015.04.015

Cited by 29 publications

(34 citation statements)

References 31 publications

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“…The η 0 values derived from the measurements of Schäfer et al . 57 agree with the new correlation with deviations of −0.06 % to −0.26 %, which are smaller than their estimated experimental uncertainty.…”

Section: Formulation Conceptsupporting

confidence: 87%

“…Agreement within their estimated uncertainties exists between the re-analyzed data of Vogel and collaborators 23 and the data extrapolated from the results of Schäfer et al . 57 The data by Timrot and Traktueva, 79 Harris et al . 80 (except one point at 276.897 K), and the data by Hunter et al .…”

Section: Formulation Conceptmentioning

confidence: 99%

“…Vogel 23 recalculated the results of Vogel and Barkow of 1986 54 and those of Hendl et al of 1993 55 by referencing them to the highly accurate viscosity value of helium at room temperature by Cencek et al 28 Locke et al 56 contributed five data points for gaseous CO 2 at 303.2 K and pressures from 0.5 MPa to 4.5 MPa that were measured with a newly developed vibrating-wire viscometer. Most recently, Schäfer et al 57 reported highly accurate measurements in the dilute gas region from 253.15 K to 473.15 K with an advanced magnetically levitated rotating-cylinder viscometer. Their work was carried out in consultation with the present authors and it was honorably mentioned by Moldover in his Touloukian Award Lecture at the 19 th Symposium on Thermophysical Properties in 2015.…”

Section: Review Of Viscosity Datamentioning

confidence: 99%

“…The above mentioned data sets of Estrada-Alexanders and Hurly, 49 Abramson, 39 and Schäfer et al 57 were included in the critically analyzed data on which the new viscosity correlation was based. The measurement results of Schäfer et al confirmed an increased uncertainty of the data of Estrada-Alexanders and Hurly with decreasing density, which had been already noted by these authors themselves.…”

Section: Review Of Viscosity Datamentioning

confidence: 99%

“…In 2014, Hellmann 22 published calculated η 0 values for CO 2 between 150 K and 2000 K based on a new PES and graciously contributed unpublished values down to 100 K during discussions with the present authors about ensuring the correct extrapolation behavior of η 0 correlations in the limit of T → 0 K. To obtain η 0 values from the data of Schäfer et al . 57 they were regressed in the present analysis isothermally by linear density functions and extrapolated to ρ = 0. The straight lines represented the data within ±0.05 %, well within their estimated experimental uncertainty of 0.2 % to 0.41 %.…”

Section: Formulation Conceptmentioning

confidence: 99%

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Reference Correlation for the Viscosity of Carbon Dioxide

Laesecke

Muzny

2017

Journal of Physical and Chemical Reference Data

111

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A comprehensive database of experimental and computed data for the viscosity of carbon dioxide (CO2) was compiled and a new reference correlation was developed. Literature results based on an ab initio potential energy surface were the foundation of the correlation of the viscosity in the limit of zero density in the temperature range from 100 K to 2000 K. Guided symbolic regression was employed to obtain a new functional form that extrapolates correctly to T → 0 K and to 10 000 K. Coordinated measurements at low density made it possible to implement the temperature dependence of the Rainwater-Friend theory in the linear-in-density viscosity term. The residual viscosity could be formulated with a scaling term ργ/T the significance of which was confirmed by symbolic regression. The final viscosity correlation covers temperatures from 100 K to 2000 K for gaseous CO2, and from 220 K to 700 K with pressures along the melting line up to 8000 MPa for compressed and supercritical liquid states. The data representation is more accurate than with the previous correlations, and the covered pressure and temperature range is significantly extended. The critical enhancement of the viscosity of CO2 is included in the new correlation.

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Section: Formulation Conceptsupporting

confidence: 87%

Section: Formulation Conceptmentioning

confidence: 99%

Section: Review Of Viscosity Datamentioning

confidence: 99%

Section: Review Of Viscosity Datamentioning

confidence: 99%

Section: Formulation Conceptmentioning

confidence: 99%

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Reference Correlation for the Viscosity of Carbon Dioxide

Laesecke

Muzny

2017

Journal of Physical and Chemical Reference Data

111

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Transient gas viscosity measurement using tunable diode laser absorption spectroscopy

et al. 2017

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A portable low-cost device to quantify advective gas fluxes from mofettes into the lower atmosphere: First application to Starzach mofettes (Germany)

Büchau,

Leven,

Bange

2024

Environ Monit Assess

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In this study, we introduce a portable low-cost device for in situ gas emission measurement from focused point sources of CO2, such as mofettes. We assess the individual sensors’ precision with calibration experiments and perform an independent verification of the system’s ability to measure gas flow rates in the range of liters per second. The results from one week of continuous CO2 flow observation from a wet mofette at the Starzach site is presented and correlated with the ambient meteorological dynamics. In the observed period, the gas flow rate of the examined mofette exhibits a dominant cycle of around four seconds that is linked to the gas rising upwards through a water column. We find the examined mofette to have a daily emission of 465 kg ±16 %. Furthermore, two events were observed that increased the flow rate abruptly by around 25 % within only a few minutes and a decaying period of 24 hours. These types of events were previously observed by others at the same site but dismissed as measurement errors. We discuss these events as a hydrogeological phenomenon similar to cold-water geyser eruptions. For meteorological events like the passages of high pressure fronts with steep changes in atmospheric pressure, we do not see a significant correlation between atmospheric parameters and the rate of gas exhalation in our one-week time frame, suggesting that on short timescales the atmospheric pumping effect plays a minor role for wet mofettes at the Starzach site.

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Measurements of the viscosity of carbon dioxide at temperatures from (253.15 to 473.15)K with pressures up to 1.2MPa

Cited by 29 publications

References 31 publications

Reference Correlation for the Viscosity of Carbon Dioxide

Reference Correlation for the Viscosity of Carbon Dioxide

Transient gas viscosity measurement using tunable diode laser absorption spectroscopy

A portable low-cost device to quantify advective gas fluxes from mofettes into the lower atmosphere: First application to Starzach mofettes (Germany)

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