Axisymmetric problem of thermal energy accumulation based on liquid—solid phase transition

Abstract

The axisymmetric problem of thermal energy accumulation in a material undergoing a phase transition at its interaction with a heat-transfer agent whose temperature varies cyclically is considered. The possibility of choosing the parameters of an accumulator part design, where the material is stored, is investigated by numerical methods. An optimal volume of the heat-accumulating material is determined from the condition of the equality of the heat amount at the accumulator charge-discharge. Results computed for the laminar and turbulent regimes of heat-transfer agent supply showed that the turbulent regime is the most efficient for the same heat-exchange surface.