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Accurate determination of density, surface tension, and vessel depth using a triple bubbler system☆
Ammon N. Williams,Greg G. Galbreth,Jeff Sanders 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.63 No.-
A triple bubbler sensor was developed for use in high temperature molten salt systems used in pyroprocessing to determine the density, surface tension, and depth of the molten salt. Preliminary bubbler testing was performed in aqueous solutions to calibrate and validate the bubbler sensor. Independently determined fluid property values and depths were compared to the calculated values and the percent differences were less than 0.16%, 3.38%, and 0.31% for density, surface tension, and depth, respectively. In addition, uncertainties were within 0.04%, 1.25%, and 0.15% for density, surface tension, and depth, respectively.
Application and testing of a triple bubbler sensor in molten salts
Williams A.N.,Shigrekar A.,Galbreth G.G.,Sanders J. 한국원자력학회 2020 Nuclear Engineering and Technology Vol.52 No.7
A triple bubbler sensor was tested in LiCleKCl molten salt from 450 to 525 C in a transparent furnace to validate thermal-expansion corrections and provide additional molten salt data sets for calibration and validation of the sensor. In addition to these tests, a model was identified and further developed to accurately determine the density, surface tension, and depth from the measured bubble pressures. A unique feature of the model is that calibration constants can be estimated using independent depth measurements, which allow calibration and validation of the sensor in an electrorefiner where the salt density and surface tension are largely unknown. This model and approach were tested using the current and previous triple bubbler data sets, and results indicate that accuracies are as high as 0.03%, 4.6%, and 0.15% for density, surface tension, and depth, respectively