Compressor-assisted thermochemical sorption integrated with solar photovoltaic-thermal collector for seasonal solar thermal energy storage

This paper studied the performance of a compressor-assisted thermochemical sorption energy storage (CATSES) system with solar photovoltaic-thermal collector (PV/T) to support domestic space and hot water heating. The heat from PV/T drives endothermic desorption, whilst electricity powers compressor assist low-temperature desorption. main aim this study was demonstrate that integrated can flexibly maximally utilise energy, store in high energy–density minimum loss over long-term storage. parametric investigation on CATSES using SrCl2/NH3 working pair conducted for case city Newcastle upon Tyne UK, which has long wintertime heating demand. Two different operation modes (Case 1 Case 2) strategies usage (direct / storage) were studied. By 30 m2 reactor contains 22 m3 (450 kg/m3) composite adsorbent 11.5 compression ratio, operated could achieve 100% fraction annual achieved material-based density around 0.6 GJ/m3 efficiency 0.88 net consumption 180 kWh (around 5% average an ordinary UK household). 2 stored less than but able output more electricity.