Physical Property Models of Concentrated Cesium Eluate Solutions

Validation and Application of Concentrated Cesium Eluate Physical Property Models

“…The most essential element of the software verification and validation (V&V) relevant to this work is on the development of the HNO3DB database, which is discussed elsewhere [Choi, 2003]. The results presented in this report satisfy the requirements outlined in the Task Technical and Quality Assurance Plan for this task [Choi, 2001a].…”

“…A unique feature of the physical property models thus developed is that they were built on the virtual data generated from the statistically designed computer experiments [Choi, 2003]. Therefore, in order to establish any credibility for the models, they must be validated against actual test data; the necessary data were taken during recent bench-scale evaporator tests using simulated cesium eluate feeds [Pierce, 2002[Pierce, & 2003.…”

“…Estimation of physical properties at saturation -The scaled weight fractions of six major cations derived in Step A were entered into the physical property models derived earlier [Choi, 2003] to estimate the density, viscosity, heat capacity, and solubility of saturated AN-102, AN-103, AN-107, AW-101, and AZ-102 cesium eluate solutions at 20 o C.…”

“…The models developed earlier are of the following linear form [Choi, 2003]: The values of the model coefficients are given in Table 2-1 for both 80% and 100% saturated cesium eluate solutions with respect to NaNO 3 . It should be noted that since both the VRF and the bulk solubility are closely related, only one of the two was modeled for either the 80% or 100% saturation case, but not both.…”

“…It should be noted that since both the VRF and the bulk solubility are closely related, only one of the two was modeled for either the 80% or 100% saturation case, but not both. Table 2-1 were determined by optimizing physical property data calculated from extensive computer runs using a statistically designed matrix of hypothetical feeds as the input [Choi, 2003]. The minimum and maximum concentration ranges of the six major cations given in Table 2-2 along with the temperature range from 20 to 60 o C formed the factor space of interest in the design of the test matrix.…”