Aspects regarding the use of recovered energy for air conditioning Răzvan Calotă, Alina Girip, Sergiu Istrate, Anica Ilie, Mădălina Nichita and Valentin Cublesan E3S Web Conf., 111 (2019) 06013 Published online: 13 August 2019 DOI: 10.1051/e3sconf/201911106013