Abstract
It is important to know the dynamical properties of a heat storage unit for effective use of energy at low temperature for air conditioning, hot water supply or dehydration. In this report, a neat system with air and packed bed of small-scale metallic capsules in which the phase change material (PCM) was encapsulated for the improvement of transient response was investigated, where heat could be stored with high density and used in a rather narrow temperature range.
Dynamical heat transfer problems in the storage unit were analyzed and the results of calculation were compared with experimental ones obtained with a packed bed of 4400 aluminium capsules, where Rose's metal was used as PCM. Agreement was fairly good, and good performance was confirmed.
