Abstract
Temperature-stratified type has a little chance to be adopted as a thermal storage tank except in large-scale buildings because this type was considered to need rather deep tank though it has a high thermal storage performance. Recently several systems of this type have been applied to buildings having double-slab spaces under their basement floors by connecting shallow sub-tanks in parallel. However, the unbalance of stored heat in each tank connected in parallel has become a problem. In this study, an input/output apparatus was developed to realize a uniform inflow/outflow rate, and its performance was confirmed through experimental study. And, the effect of connecting holes bored in tank partitions on improving the unbalance of stored heat was studied experimentally, and the application result to an actual building was also reported.
