The Energy Storage Capabilities of Single and Mixture Sorbent Salts Impregnated Pumice and Anodic Aluminium Oxide Based Composite Materials

Abstract

In recent years, when the energy demand has increased day by day, the continuity of energy has become an important issue as well as the need to meet the demand from nature-friendly technologies. Thermochemical Heat Storage (THS) systems are among the important approaches that help the continuous and efficient use of renewable energy resources with its high energy storage density and long storage times. Researches on composite structures consisting of sorbent salt and porous matrix couple among storage materials are noteworthy for the development of sorption materials and thus the heat storage system. Composite sorbents were prepared by impregnating sorbent salt (CaCl2 and MgCl2 etc.) as single and mixture into two different matrix materials, anodic Aluminium oxide (AAO) template and pumice (P), is carried out in this study. The cyclical heat storage behaviours of the obtained composite structures were investigated with the laboratory scale thermochemical heat exchanger prototype system. The aim of this study is that the effect of host matrices with different pore diameters one of whose is produced in the laboratory and other is natural on the thermochemical heat storage capability. Moreover, different sorbent salts which are impregnated into these pores on the heat storage capability is also compared with the help of prototype system.