Conceptual Design of the Steam Generators for the EU DEMO WCLL Reactor

In the framework of EUROfusion Horizon Europe Programme, ENEA and its linked third parties are in charge conceptual design steam generators belonging to EU DEMO WCLL Breeding Blanket Primary Heat Transfer Systems (BB PHTSs). particular, 2021, activities supporting numerical simulations were carried out order achieve a feasible robust preliminary concept Once Through Steam Generators (OTSGs), selected as reference technology for Balance Plant at end 2020 Programme. The these components is very challenging. fact, have deliver thermal power removed from two principal blanket subsystems, i.e., First Wall (FW) Zone (BZ), Power Conversion System (PCS) conversion into electricity, operating under plasma pulsed regime staying dwell period low level (decay power). Consequently, OTSG stability control represent key point systems’ operability success BoP configuration with direct coupling between BB PHTS PCS. this paper, authors reported critically discussed FW BZ generators’ thermal-hydraulic mechanical design, developed 3D CAD models, well main results analyses strategy be adopted.