Reference Correlations for the Viscosity of Molten LiF-NaF-KF, LiF-BeF2, and Li2CO3-Na2CO3-K2CO3

IF 4.4 2区工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of Physical and Chemical Reference Data Pub Date : 2019-11-14 DOI:10.1063/1.5131349

K. Α. Tasidou, J. Magnusson, T. Munro, Marc J. Assael

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引用次数: 7

Abstract

In 1974, reference correlations for the viscosity of molten LiF-NaF-KF, LiF-BeF2, and Li2CO3-Na2CO3-K2CO3 were proposed by Janz and have been extensively used since then. However, in the last 45 years, many additional measurements have been published. This is why in this paper, new reference correlations for the viscosity of these salts are proposed. All available experimental data for the viscosity of these three molten salts have been critically examined with the intention of establishing improved or new reference viscosity correlations. All experimental data have been categorized into primary and secondary data according to the quality of measurement specified by a series of criteria. The reference correlation proposed for LiF-NaF-KF, with an uncertainty of 2.9% at the 95% confidence level, expands the temperature range of the previous correlation from (770–970) K to (732–1163) K and retains its uncertainty. The correlation proposed for LiF-BeF2, with an uncertainty of 4.9% at the 95% confidence level, expands the high temperature range of the previous correlation from (740–870) K to (793–1573) K, with a slight loss in its uncertainty. It is, however, a much better correlation as it is based upon measurements not available at the time of the previous one. Finally, the reference correlation for Li2CO3-Na2CO3-K2CO3, with an uncertainty of 3%, also expands the temperature range of the previous correlation from (920–1170) K to (738–1170) K and retains its uncertainty.In 1974, reference correlations for the viscosity of molten LiF-NaF-KF, LiF-BeF2, and Li2CO3-Na2CO3-K2CO3 were proposed by Janz and have been extensively used since then. However, in the last 45 years, many additional measurements have been published. This is why in this paper, new reference correlations for the viscosity of these salts are proposed. All available experimental data for the viscosity of these three molten salts have been critically examined with the intention of establishing improved or new reference viscosity correlations. All experimental data have been categorized into primary and secondary data according to the quality of measurement specified by a series of criteria. The reference correlation proposed for LiF-NaF-KF, with an uncertainty of 2.9% at the 95% confidence level, expands the temperature range of the previous correlation from (770–970) K to (732–1163) K and retains its uncertainty. The correlation proposed for LiF-BeF2, with an uncertainty of 4.9% at the 95% confidence level,...

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熔融LiF-NaF-KF、LiF-BeF2和Li2CO3-Na2CO3-K2CO3粘度的参考相关性

1974年，Janz提出了熔融LiF-NaF-KF、LiF-BeF2和Li2CO3-Na2CO3-K2CO3的粘度的参考相关性，并从那时起被广泛使用。然而，在过去的45年里，已经发表了许多额外的测量结果。这就是为什么在本文中，提出了这些盐粘度的新的参考相关性。为了建立改进的或新的参考粘度相关性，对这三种熔盐粘度的所有可用实验数据进行了严格的检验。根据一系列标准规定的测量质量，将所有实验数据分为初级数据和次级数据。为LiF-NaF-KF提出的参考相关性，在95%置信水平下不确定度为2.9%，将先前相关性的温度范围从（770–970）K扩展到（732–1163）K，并保留其不确定度。为LiF-BeF2提出的相关性，在95%置信水平下的不确定性为4.9%，将先前相关性的高温范围从（740–870）K扩展到（793–1573）K，其不确定性略有损失。然而，这是一个更好的相关性，因为它是基于上一次测量时无法获得的测量结果。最后，不确定度为3%的Li2CO3-Na2CO3-K2CO3的参考相关性也将先前相关性的温度范围从（920–1170）K扩展到（738–1170。1974年，Janz提出了熔融LiF-NaF-KF、LiF-BeF2和Li2CO3-Na2CO3-K2CO3的粘度的参考相关性，并从那时起被广泛使用。然而，在过去的45年里，已经发表了许多额外的测量结果。这就是为什么在本文中，提出了这些盐粘度的新的参考相关性。为了建立改进的或新的参考粘度相关性，对这三种熔盐粘度的所有可用实验数据进行了严格的检验。根据一系列标准规定的测量质量，将所有实验数据分为初级数据和次级数据。为LiF-NaF-KF提出的参考相关性，在95%置信水平下不确定度为2.9%，将先前相关性的温度范围从（770–970）K扩展到（732–1163）K，并保留其不确定度。LiF-BeF2在95%置信水平下的不确定度为4.9%，提出的相关性，。。。

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来源期刊

Journal of Physical and Chemical Reference Data 化学-化学综合

CiteScore

6.90

自引率

11.60%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Physical and Chemical Reference Data (JPCRD) is published by AIP Publishing for the U.S. Department of Commerce National Institute of Standards and Technology (NIST). The journal provides critically evaluated physical and chemical property data, fully documented as to the original sources and the criteria used for evaluation, preferably with uncertainty analysis. Critical reviews may also be included if they document a reference database, review the data situation in a field, review reference-quality measurement techniques, or review data evaluation methods.