Heat rejection stage of an adsorption heat storage cycle: the useful heat and sorption dynamics

In this work, a performance of the adsorption stage of a seasonal heat storage cycle was experimentally investigated under realistic boundary conditions. The tests were performed by a lab scale testing bench developed in ITAE-CNR. The studied adsorber is based on a compact aluminium heat exchanger of a flat tube type. Three water sorbents were tested: two commercial materials (microporous silica Siogel and AQSOA FAM Z02) and a composite "LiCl in mesoporous silica KSK".