Modeling void growth and movement with phase change in thermal energy storage canisters
Abstract
A scheme was developed to model the thermal hydrodynamic behavior of thermal energy storage salts. The model included buoyancy, surface tension, viscosity, phases change with density difference, and void growth and movement. The energy, momentum, and continuity equations were solved using a finite volume formulation. The momentum equation was divided into two pieces. The void growth and void movement are modeled between the two pieces of the momentum equations. Results showed this scheme was able to predict the behavior of thermal energy storage salts.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 July 1993
 Bibcode:
 1993STIN...9412576D
 Keywords:

 Computational Fluid Dynamics;
 Finite Volume Method;
 Heat Storage;
 Hydrodynamics;
 Lithium Fluorides;
 Mathematical Models;
 Microgravity;
 Phase Change Materials;
 Salts;
 Voids;
 Algorithms;
 Buoyancy;
 Computer Programs;
 Continuity Equation;
 Interfacial Tension;
 Momentum;
 Temperature Effects;
 Viscosity;
 Fluid Mechanics and Heat Transfer