Performance analysis of a Brayton Pumped Thermal Electricity Storage (PTES) with a liquid sensible heat storageGuido Francesco Frate, Lorenzo Ferrari, Luca Giachetti, Giacomo Petretto and Umberto DesideriE3S Web Conf., 238 (2021) 10007DOI: https://doi.org/10.1051/e3sconf/202123810007