Modeling and Analysis of CaBr2 Hydrolysis
S.A. Lottes, and R.W. Lyczkowski
Argonne National Laboratory
Flow around a 4 mm equivalent sphere diameter spherical-cap bubble rising at 20 cm/s in molten calcium bromide
The main focus of this paper is the modeling, simulation, and analysis of the CaBr2 hydrolysis reactor stage in the Calcium-Bromine thermochemical water splitting cycle for nuclear hydrogen production.
One concept is to use a spray reactor of CaBr2 into steam. Given the large heat reservoir contained in a pool of liquid CaBr2 that allows bubbles to rise easily, using a bubble column for the hydrolysis reaction appears to be a feasible and promising alternative to the spray reactor concept.
Results for both droplet and bubble modeling with COMSOL are presented together with recommendations for the path forward.