Abstract
The study of small modular reactors has generated increasing interest in recent years in the international scientific community. Their applications and versatility make them an attractive option among candidates considered in generation III+ and IV. Additionally, the modeling and study of TRISO fuel in PWR-type modular reactors constitutes a challenge and opens new possibilities for its use. In this work, new studies are carried out on the conceptual design of SMR with TRISO fuel. Through a multifactorial statistical analysis, the influence of the enrichment, the packing fraction, and the kernel size on the multiplicative properties of the TRISO fuel is quantitatively evaluated. Once done, a core configuration is established with the aim that it can remain critical for approximately four years, without the need of refueling. Based on two models, one neutronic in Serpent and one thermohydraulic in Ansys CFX, the performance of the designed reactor is studied, and the results obtained when using a packing matrix composed of graphite and other composed of SiC are compared. To carry out this simulation, power correlations as a function of the height of the fuel assembly and temperature-dependent correlations are obtained for the fuel zone that is composed of the TRISO particles dispersed in the packing matrices. Temperature distributions in the fuel, clad, gap and coolant for the critical assembly were obtained.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
