Molten Salts Data: Diffusion Coefficients in Single and Multi-Component Salt Systems

Janz, George J.; Bansal, Narottam P.

doi:10.1063/1.555665

Cited by 122 publications

(91 citation statements)

References 43 publications

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“…Janz also worked in cumulative results for the salts properties between 1972 and 1983 (the Molten Salts Standards Program) [50][51][52][53][54][55][56]. This general database, subsequently reprinted and summarized in 1988 [57], is widely used today for any purpose due to its updated recommendations and reexamined best values for making density and viscosity predictions [58].…”

Section: Introductionmentioning

confidence: 99%

Molten salts database for energy applications

Serrano-López

Fradera

Cuesta‐López

2013

Chemical Engineering and Processing: Process Intensification

288

144

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The growing interest in energy applications of molten salts is justified by several of their properties. Their possibilities of usage as a coolant, heat transfer fluid or heat storage substrate, require thermo-hydrodynamic refined calculations. Many researchers are using simulation techniques, such as Computational Fluid Dynamics (CFD) for their projects or conceptual designs. The aim of this work is providing a review of basic properties (density, viscosity, thermal conductivity and heat capacity) of the most common and referred salt mixtures. After checking data, tabulated and graphical outputs are given in order to offer the most suitable available values to be used as input parameters for other calculations or simulations. The reviewed values show a general scattering in characterization, mainly in thermal properties. This disagreement suggests that, in several cases, new studies must be started (and even new measurement techniques should be developed) to obtain accurate values.Comment: 29 page, 21 figures, Accepted for publication in: Chemical Engineering \& Processing: Process Intensificatio

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Section: Introductionmentioning

confidence: 99%

Molten salts database for energy applications

Serrano-López

Fradera

Cuesta‐López

2013

Chemical Engineering and Processing: Process Intensification

288

144

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“…The dynamics for molten Flibe salt is complicated; self-diffusion coefficient data from different references are inconsistent with each other [14][15][16][17][18][19]. In general, those data have the same trend: lithium has the strongest diffusivity and beryllium is the hardest to migrate; each of them has positive correlation with temperature.…”

Section: Dynamics Of Liquid Flibementioning

confidence: 85%

The investigation of thermal neutron scattering data for molten salt Flibe

Mei

Xiang-Zhou

Jiang

et al. 2013

Journal of Nuclear Science and Technology

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Based on the dynamics of Flibe (2LiF-BeF 2 ), the thermal neutron scattering library (TSL) is generated by NJOY in this paper. We worked on the TSL data through the microscopic analysis. With the increas of temperature and translational weight of liquid Flibe, the inelastic scattering cross section decreases and the average energy of secondary neutron increases. Using TSL of Flibe, the critical calculation for molten salt reactor is also conducted by MCNP. Result shows the k eff is influenced by thermal neutron scattering obviously (about 0.8%). It is suggested that thermal neutron data should be taken into account in molten salt reactor.

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“…These observations are consistent with the fact that sodium, nitrate, and chlorine were detected frequently in the deepest ice by Raman (Figure ) and SEM/EDS (Figure ) measurements. This ion‐reduction timing as a function of ion species cannot be explained by differences in ion diffusivity in liquid water (self‐diffusion coefficient, D ), namely in possible liquid veins: D Cl > D Na > D NO3 > D SO4 > D Ca ≈ D Mg [ Janz and Bansal , ; Mills and Lobo , ]. We infer that differences in the location and chemical form are more important: possibly, SO 4 , MSA, and Mg were located preferentially at ice grain boundaries rather than at hydrate surfaces as compared with other chemical components, resulting in the observed antecedent ion depression.…”

Section: Discussionmentioning

confidence: 99%

Physicochemical properties of bottom ice from Dome Fuji, inland East Antarctica

et al. 2016

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The deepest ice in inland Antarctica is expected to preserve the oldest ice records and to potentially contain microorganisms. However, little is known about the physicochemical conditions in the deepest part of ice sheets. This study investigates the physicochemical properties of the bottom section (3000–3035 m) of the Dome Fuji inland ice core, which is located immediately above unfrozen bedrock. The ubiquitous presence of air hydrates and the water isotope composition of ice comparable to the upper main ice core show that the bottom ice is meteoric. However, ion concentrations exhibit abnormal drops at the greatest depths (approximately below 3033 m). In the same depth range, microscopic investigations reveal that considerable relocation of air hydrates and microinclusions (water‐soluble impurities) occurs, suggesting that the observed reduction in ion concentration results from the segregation of inclusions to ice grain boundaries and the subsequent discharge of chemicals through liquid‐water veins. Principal component analysis of ion data supports the meteoric‐ice hypothesis, suggesting that the bottom ice had similar original chemistry through all depths. Statistical analyses of chemical data suggest that the water‐soluble impurities attached to hydrates or dust (water‐insoluble), the ice‐soluble chemical species (such as chlorine), and solid particles are less affected by this chemical displacement phenomenon. It is also noteworthy that in the bottom ice, impurity chemicals, which are limiting nutrients for ice‐dwelling microorganisms, are concentrated largely to ice‐hydrate interfaces, where oxygen, another vital matter for aerobic microorganisms, is also enriched.

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Molten Salts Data: Diffusion Coefficients in Single and Multi-Component Salt Systems

Cited by 122 publications

References 43 publications

Molten salts database for energy applications

Molten salts database for energy applications

The investigation of thermal neutron scattering data for molten salt Flibe

Physicochemical properties of bottom ice from Dome Fuji, inland East Antarctica

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