20.500.12556/RUL-154327 Performance of fully coated microencapsulated nuclear fuel master’s thesis A new concept of nuclear fuel is considered. Recently, the Ultra Safe Nuclear Corporation has developed a 15 MW thermal powered Micro Modular Reactor (MMR) that uses Tristructural isotropic coated fully ceramic microencapsulated fuel. Instead of conventional graphite matrix, the fuel kernels are placed in a silicon carbide matrix. The benefits of using this fuel are safer energy production and retention of fission products. The main purpose of the present thesis is to analyze the thermal performance of fully ceramic microencapsulated nuclear fuel and retention of fission product properties of the fully coated microencapsulated nuclear fuel. The properties of different materials, fuel block, stack, pellet as well as fuel particle temperature profiles and fission product retention characteristics are taken into consideration. A comprehensive literature review was conducted first to understand the current technologies and make a comparison with the newly developed MMR. Then, a detailed theoretical modelling is provided for all mentioned fuel constituents. Further, results are obtained and discussed. Results suggest that the temperatures that occur in different parts (block, stack, pellet, kernel) of the reactor are below the limit of the materials; that makes the reactor safe from usual abnormalities. Further, the fuel particles and silicon carbide matrix are capable of retaining all the fission products within them. nuclear engineering nuclear fuel TRISO coated microencapsulated particles thermal analysis Micro Modular Reactor jedrska tehnika jedrsko gorivo TRISO prevlečeno mikrokapsulirano gorivo termična analiza mikro modularni reaktor true false false Md A. Arefin Angleški jezik Slovenski jezik Magistrsko delo/naloga 2024-02-07 10:17:47 2024-02-07 10:17:47 2024-02-10 03:24:41 0000-00-00 00:00:00 2023 0 Lappeenranta 2023 Lappeenranta 1 spletni vir (1 datoteka PDF (83 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.039.5 184080899 https://lutpub.lut.fi/handle/10024/166246 1 c2967d71-c599-11ee-8be4-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=180678 Md_Arman_Arefin_28222063_converted.pdf Md_Arman_Arefin_28222063_converted.pdf 1 647001C255035E839657EB286BEBF147 ff053a71a0fba2bc7a1b4c62dd044ce09b426efef7fe775a551ab1ecfcac5c94 df5c1f09-c599-11ee-8be4-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=180679 Fakulteta za matematiko in fiziko 0 0 0