MARKET PROSPECTS FOR A HYBRID TURBO-ELECTRIC PROPULSION (HTEP) WITH FUEL CELLS FOR A REGIONAL AIRCRAFT WITH 80 SEATS - Zamarreño Suárez M; Delgado-Aguilera Jurado R; Pérez Moreno F; Gómez Comendador VF; Arnaldo Valdés RM (World Congress In Computational Mechanics And Eccomas Congress, 2024)