Boron and lithium aqueous thermochemistry to model crud deposition in pressurized water reactors
Journal Article
·
· Journal of Chemical Thermodynamics
- Univ. of Tennessee, Knoxville, TN (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Here, a comprehensive database of boron and lithium aqueous thermochemistry has been developed for use at elevated temperatures. The Helgeson-Kirkham-Flowers (HKF) formalism provides a framework to describe thermodynamic properties over a broad range of temperatures and pressures. Accuracy at high temperatures is vital to modeling nickel oxide and ferrite fuel deposits that occur in pressurized water nuclear reactors (PWRs). CALPHAD (CALculation of PHAse Diagrams) calculations are performed at PWR crud conditions to predict the stability regions of the solid lithium metaborate (LiBO2) and lithium tetraborate (Li2B4O7) precipitates. In addition, similar calculations are performed using sodium and potassium instead of lithium in order to assess the thermodynamics associated with preventing the formation of such precipitates. This database contributes to understanding of crud formation and composition and will aid in the prediction of phenomena such as Crud-Induced Power Shifts (CIPS).
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE); USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- 89233218CNA000001
- OSTI ID:
- 2332799
- Report Number(s):
- LA-UR--24-22086
- Journal Information:
- Journal of Chemical Thermodynamics, Journal Name: Journal of Chemical Thermodynamics Vol. 195; ISSN 0021-9614
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Experimental Investigation on the Effects of Coolant Concentration on Sub-Cooled Boiling and Crud Deposition on Reactor Cladding at Prototypical PWR Operating Conditions
Implementation of equilibrium aqueous speciation and solubility (EQ3 type) calculations into Cantera for electrolyte solutions.
The Hydrothermal Chemistry of Gold, Arsenic, Antimony, Mercury and Silver
Technical Report
·
Fri Oct 20 00:00:00 EDT 2006
·
OSTI ID:894209
Implementation of equilibrium aqueous speciation and solubility (EQ3 type) calculations into Cantera for electrolyte solutions.
Technical Report
·
Mon Jun 01 00:00:00 EDT 2009
·
OSTI ID:970260
The Hydrothermal Chemistry of Gold, Arsenic, Antimony, Mercury and Silver
Technical Report
·
Sat Mar 22 23:00:00 EST 2003
·
OSTI ID:840338