A novel correlation for the direct determination of the discharging time of plate-based latent heat thermal energy storage systems

摘要: Abstract One of the key factors that currently limit commercial deployment latent heat thermal energy storage (LHTES) systems is their complex design procedure. The optimization such kind requires a compromise between capacity and charging/discharging power, therefore, there need modeling tools allow fast accurate simulation. In light this, novel correlation allows straightforward determination discharging time plate-based LHTES developed in present article. To approach this objective, an experimentally validated CFD model was used. Simulations with 3 phase change materials (PCMs) were first employed to gain knowledge melting solidification behavior system. Then, theoretical formulation transfer problem involved performed so as identify those dimensionless numbers concerned process. Afterwards, 15 virtual PCMs defined simulations performed. obtained results adjusted by regression get exponents coefficients correlation. Finally, validate correlation, five additional carried out compared from By means expression, maximum plate thickness capable provide desired power can be determined function properties PCM operation constraints application without simulations. technique eases process decreases amount needed size them days/hours minutes.