This work has been carried out within the framework of the EUROTRANS project - DM1 domain, having the task to deliver a conceptual design for a lead cooled European Transmutator Demonstrator (in a sub-critical reactor) for MA isotopes. Adopting from a U-free combustible (MOX spent fuel after 30 years' cooling inserted in a MgO matrix), the main goal in the Task 1.2.4 (WP 1.2) is the preliminary definition of the core geometrical and power size and the structure of the fuel assembly. In the last year different design approaches have been analysed (according to the evolution of the ideas, results and considerations) before reaching the reference strategy called '42-0'. By this approach we are able to transmute 42 [kg TWhth-1] of MAs with a zero net mass balance for the Pu. In a previous work a 395 MWth reference core with two radial zones (regulated to achieve the max allowable power density in order to fast the waste incineration) has been defined by verifying its transmutation and overall core performances. Since the radial form factor turned out to be rather high in the outer zone, a solution with three zones is here presented and analysed with the ERANOS deterministic code.
Preliminary Neutronic Analysis of the three Zones EFIT-MgO/Pb Core
Peluso, V.;Sarotto, M.
2007-04-03
Abstract
This work has been carried out within the framework of the EUROTRANS project - DM1 domain, having the task to deliver a conceptual design for a lead cooled European Transmutator Demonstrator (in a sub-critical reactor) for MA isotopes. Adopting from a U-free combustible (MOX spent fuel after 30 years' cooling inserted in a MgO matrix), the main goal in the Task 1.2.4 (WP 1.2) is the preliminary definition of the core geometrical and power size and the structure of the fuel assembly. In the last year different design approaches have been analysed (according to the evolution of the ideas, results and considerations) before reaching the reference strategy called '42-0'. By this approach we are able to transmute 42 [kg TWhth-1] of MAs with a zero net mass balance for the Pu. In a previous work a 395 MWth reference core with two radial zones (regulated to achieve the max allowable power density in order to fast the waste incineration) has been defined by verifying its transmutation and overall core performances. Since the radial form factor turned out to be rather high in the outer zone, a solution with three zones is here presented and analysed with the ERANOS deterministic code.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
