Force Transmission Error Analysis for a High-Pressure Single-Sinker Magnetic Suspension Densimeter

Cristancho, Diego E.; Mantilla, I.; Ejaz, Saquib; Hall, Kenneth R.; Iglesias‐Silva, Gustavo A.

doi:10.1007/s10765-010-0702-3

Cited by 25 publications

(21 citation statements)

References 11 publications

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“…High‐pressure gas absorption/desorption experimental data were obtained by means of the magnetic sorption apparatus (MSA) of Rubotherm Präzisionsmesstechnik GmbH, Germany. This apparatus allows for operations up to 350 bar and 373 K. Operating principle, procedures, data correlation of the magnetic suspension force transmission, and calibrations of the instrument have been already explained in our previous works , , .…”

Section: Methodsmentioning

confidence: 99%

Rheological, Thermodynamic, and Gas Solubility Properties of Phenylacetic Acid‐Based Deep Eutectic Solvents

et al. 2017

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Choline chloride + phenylacetic acid-based deep eutectic solvents are studied. Their most relevant experimental physicochemical properties at different mixing ratios together with the CO 2 solubility data obtained in wide pressure and temperature ranges are reported. The presented materials exhibit a significant CO 2 capture performance with low corrosion effect when compared with the most common amine-based CO 2 capture agents. Detailed rheological measurements are carried out and various models are applied to describe the dynamic flow behavior of the solvents. The CO 2 absorption mechanism is evaluated by studying the behavior of the liquid gas and interface. Due to the advantages of low cost, nontoxicity, and favorable physical properties, these solvents are an environmentally promising alternative for effective CO 2 capture technological applications.

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Section: Methodsmentioning

confidence: 99%

Rheological, Thermodynamic, and Gas Solubility Properties of Phenylacetic Acid‐Based Deep Eutectic Solvents

et al. 2017

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“…Using that work as a guide, a comprehensive FTE analysis of the TAMU instrument recently appeared. 5 The coupling factor (φ -1) for the MSD is (195, 189, 204, and 194) × 10 -6 for (310, 350, 400, 450) K, respectively. The reproducibility of these values is less than ( 2 × 10 -6 for each isotherm.…”

Section: Methodsmentioning

confidence: 99%

P-ρ-T Data for Carbon Dioxide from (310 to 450) K up to 160 MPa

et al. 2010

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This paper presents P-F-T data for pure carbon dioxide measured with a high-pressure single-sinker magnetic suspension densimeter (MSD). The data cover four isotherms (310, 350, 400, 450) K. The MSD technique yields data with less than 0.03 % relative uncertainty over the pressure range of (10 to 200) MPa. A comparison of the experimental data to the equation of state developed by Span and Wagner indicates that the equation and the data are consistent within the low range of pressure. The reference equation has a relative uncertainty of ( 0.03 % to ( 0.05 % below 30 MPa. At higher pressures, the density predictions of this model agree with the experimental data with a maximum relative deviation of 0.1 %.

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“…The FTE has been discussed in detail by McLinden et al [20], Cristancho et al [21] and Kano et al [22].…”

Section: Resultsmentioning

confidence: 99%

Experimental determination of ( p , ρ , T ) data for binary mixtures of methane and helium

Hernández-Gómez

Tůma

Segovia

et al. 2016

The Journal of Chemical Thermodynamics

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The basis for the development and evaluation of equations of state for mixtures is experimental data for several thermodynamic properties. The quality and the availability of experimental data limit the achievable accuracy of the equation. Referring to the fundamentals of GERG-2008 wide-range equation of state, no suitable data were available for many mixtures containing secondary natural gas components.This work provides accurate experimental (p, ρ, T) data for two binary mixtures of methane with helium (0.95 (amount-of-substance fraction) CH 4 + 0.05 He and 0.90 CH 4 + 0.10 He). Density measurements were performed at temperatures between 250 K and 400 K and pressures up to 20 MPa by using a singlesinker densimeter with magnetic suspension coupling. Experimental data were compared with the corresponding densities calculated from the GERG-2008 and the AGA8-DC92 equations of state.Deviations from GERG-2008 were found within a 2 % band for the (0.95 CH 4 + 0.05 He) mixture but exceeded the 3 % limit for the (0.95 CH 4 + 0.05 He) mixture. The highest deviations were observed at 250 K and pressures between 17 and 19 MPa. Values calculated from AGA8-DC92, however, deviated from the experimental data by only 0.1 % at high pressures and exceeded the 0.2 % limit only at temperatures of 300 K and above, for the (0.90 CH 4 + 0.10 He) mixture. IntroductionThe knowledge of the thermophysical properties of natural gases and other related mixtures is an important feature for the performance of technical processes. Transportation, storage, and liquefaction processes in addition to design of equipment and other applications of natural gases require an accurate estimation of the thermodynamic properties of the individual mixture-forming components. Depending on the source and the application, several components may be present in natural gases at different compositions. The raw natural gas needs to be processed due to the quality specifications for its commercial use as a fuel. Thus, the separation of undesirable components (e.g., carbon dioxide, water or hydrogen sulfide) or the presence of other components (e.g., lower and higher hydrocarbons) is required.In addition, the growing interest in alternative sources of energy gases and the diversity of composition of these non-conventional fuels demands to consider other components with minority presence. For all this reasons, property calculations over wide ranges of mixture compositions and operating conditions in the homogeneous gaseous, liquid, and supercritical regions and for vapor-liquid equilibrium (VLE) states are required. These particular data can be calculated from equations of state. Different equations of state have been developed for various substances and applications, according to the requirements of precision and availability of experimental data. There are two main equations of state for estimating natural gas properties: AGA8-DC92 and GERG-2008. The first one was developed by Starling and Savidge with the support of the American Gas Association (AGA). The AGA8-DC9...

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Force Transmission Error Analysis for a High-Pressure Single-Sinker Magnetic Suspension Densimeter

Cited by 25 publications

References 11 publications

Rheological, Thermodynamic, and Gas Solubility Properties of Phenylacetic Acid‐Based Deep Eutectic Solvents

Rheological, Thermodynamic, and Gas Solubility Properties of Phenylacetic Acid‐Based Deep Eutectic Solvents

P-ρ-T Data for Carbon Dioxide from (310 to 450) K up to 160 MPa

Experimental determination of ( p , ρ , T ) data for binary mixtures of methane and helium

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