J. energy storage J. energy storage Analysis of the discharging process of latent heat thermal energy storage units by means of normalized power parameters König-Haagen Andreas Höhlein Stephan Lázaro Ana Universidad de Zaragoza Delgado Mónica Diarce Gonzalo Groulx Dominic Herbinger Florent Patil Ajinkya Englmair Gerald Wang Gang Abdi Amir Chiu Justin N.W. Xu Tianhao Rathgeber Christoph Pöllinger Simon Gschwander Stefan Gamisch Sebastian 2023 research-article