Dr. Luis Alfonso Díaz-Secades holds a Chief Engineer Unlimited license and brings over a decade of professional experience onboard vessels and in shipyards. He later transitioned to Academia, where his research focuses on energy efficiency in maritime transportation, with a particular emphasis on waste heat and cold energy recovery as a strategy to support the decarbonization of the shipping sector. He currently teaches applied thermodynamics and maintenance of marine systems at the School of Maritime Studies, University of Oviedo, Spain. Dr. Díaz-Secades lectures in undergraduate and master's programmes in marine engineering and regularly supervises final projects and theses related to sustainable energy systems and shipboard energy integration.