Viscosity of Aqueous Electrolyte Solutions at High Temperatures and High Pressures. Viscosity <i>B</i>-coefficient. Sodium Iodide

Abdulagatov, Ilmutdin M.; Zeinalova, and Adelya B.; Azizov, N. D.

doi:10.1021/je060124c

Cited by 36 publications

(24 citation statements)

References 85 publications

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“…The influence of temperature on viscosity can be described with an Arrhenius type of law, introduced by Andrade as in Eq. :

η = A \cdot (\frac{E_{normala}}{RT})

where A is a constant that changes with concentration (Pa·s) and E a is the activation energy (J/mol), R is the universal gas constant (8.314 N·m (K·mol) −1 ), T is the temperature (K).…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

The Influence of Pore Solutions Properties on Drying in Cementitious Materials

et al. 2013

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The drying of cementitious materials can be influenced by the properties of the fluid in the pores. While there are numerous studies on drying, very few explicitly focus on the properties of the pore fluid. This work investigates the influence of deicing salts on the properties of the pore fluid. The change that deicing salts cause in surface tension and viscosity is described in this study as a function of concentration and temperature. As a relatively limited number of measurements have been reported in literature, it can be difficult to describe the properties over a wide range of concentrations or temperatures. To overcome this limitation, this work provides measurements over concentration and temperature ranges. Semiempirical relationships were successfully fitted to the data confirming the possibility to predict viscosity and surface tension changes with temperature and salt concentration. The implications of the fluid properties on the drying behavior are also discussed as they relate to the diffusion coefficient. The models applied effectively predict the initiation of drying. Further improvements are however necessary to describe the diffusion coefficient as function of the degree of saturation in the presence of deicing salts which appear to be needed to account for the chemical interaction between the matrix and the fluid.

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“…The influence of temperature on viscosity can be described with an Arrhenius type of law, introduced by Andrade as in Eq. :

η = A \cdot (\frac{E_{normala}}{RT})

where A is a constant that changes with concentration (Pa·s) and E a is the activation energy (J/mol), R is the universal gas constant (8.314 N·m (K·mol) −1 ), T is the temperature (K).…”

Section: Methodsmentioning

confidence: 99%

“…:

η = A \cdot (\frac{E_{normala}}{RT})

where A is a constant that changes with concentration (Pa·s) and E a is the activation energy (J/mol), R is the universal gas constant (8.314 N·m (K·mol) −1 ), T is the temperature (K). Equation works effectively over a wide range of temperature . In this work, the measurements were performed between 5°C and 38°C.…”

Section: Methodsmentioning

confidence: 99%

The Influence of Pore Solutions Properties on Drying in Cementitious Materials

et al. 2013

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“…The apparatus and procedures used for the viscosity measurements of the {x 1 n-heptane + (1 À x 1 )n-octane} mixtures has been described in detail in previous papers by Abdulagatov and Azizov [29][30][31][32][33][34], Abdulagatov et al [35][36][37][38][39], Azizov and Akhundov [40] and were used without modification. Only brief and essential information will be given here.…”

Section: Viscosity Measurementsmentioning

confidence: 99%

(p,ρ,T,x) and viscosity measurements of {x1n-heptane+(1−x1)n-octane} mixtures at high temperatures and high pressures

Abdulagatov

Azizov

2006

The Journal of Chemical Thermodynamics

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“…Developing a theoretical and experimental understanding of the 119 mechanisms and molecular-scale interactions that lead to the observed viscosity variations 120 deserves attention, but such efforts are well beyond the scope of this study and are not 121 considered here. As mentioned byAbdulagatov et al (2006), we note that the results 122 presented here will be of interest to those involved in research related to steam-power 123 generation, high temperature seawater desalination, geothermal energy production, oil 124 recovery, and various industrial processes. NaCl solutions, including the PTx range of the experiments, experimental method used and number of data points, is provided inTable 1.…”

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confidence: 87%

A revised empirical model to calculate the dynamic viscosity of H2O NaCl fluids at elevated temperatures and pressures (≤1000 °C, ≤500 MPa, 0–100 wt % NaCl)

Klyukin

Lowell

Bodnar

2017

Fluid Phase Equilibria

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Examination of viscosities for the fluids in the system H 2 O-NaCl predicted by 12 the commonly-used model of Palliser and McKibbin has identified regions of pressure-13 temperature-salinity (PTx) space in which the model delivers values that are inconsistent 14 with some experimental data and exhibits discontinuities and trends that are unexpected. 15Here, we describe a revised empirical model to calculate viscosity of H 2 O-NaCl fluids that 16shows good correlation with experimental values and shows trends that are consistent with 17 known or expected behavior outside of the region where experimental data are available. 18The model described here is valid over the temperature range from the H 2 O solidus (~0 19 °C) to ~1,000 °C, from ~0.1 MPa to ≤500 MPa, and for salinities from 0-100 wt.% NaCl. 20 21 Keywords H 2 O-NaCl fluid, viscosity, transport properties, numerical model 22 While the one-component system H 2 O is a reasonable approximation for the 41 composition of many low-salinity aqueous hydrothermal fluids, the fact that H 2 O is a one-42 component system results in a phase topology that differs significantly from that of multi-43 component fluids. An important difference in phase topology of the one component H 2 O 44 system, compared to multi-component fluid systems, is that in a one component system 45 liquid and vapor only coexist along the liquid-vapor equilibrium curve that terminates at a 46 critical end point (Figure 1a; C.P.), beyond which only a single-phase (supercritical) fluid 47 may exist. Additionally, at temperatures above the critical temperature in a one-component 48 system such as H 2 O, all physical and thermodynamic properties of the fluid vary smoothly 49 and continuously with changing temperature and pressure, and no discontinuities in fluid 50 properties occur. Over the past several decades, a large experimental database describing 51

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Viscosity of Aqueous Electrolyte Solutions at High Temperatures and High Pressures. Viscosity B-coefficient. Sodium Iodide

Cited by 36 publications

References 85 publications

The Influence of Pore Solutions Properties on Drying in Cementitious Materials

The Influence of Pore Solutions Properties on Drying in Cementitious Materials

(p,ρ,T,x) and viscosity measurements of {x1n-heptane+(1−x1)n-octane} mixtures at high temperatures and high pressures

A revised empirical model to calculate the dynamic viscosity of H2O NaCl fluids at elevated temperatures and pressures (≤1000 °C, ≤500 MPa, 0–100 wt % NaCl)

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