TY - JOUR AU - Napirah, Mardiana AU - Su'ud, Zaki PY - 2022/10/22 Y2 - 2024/03/29 TI - Comparative Study of UO2 and (Th,U-233)O2 Performance in Small Long-Life PWR Fuel Cell JF - JURNAL ILMU FISIKA JA - J. Ilmu Fis. VL - 15 IS - 1 SE - Research Article DO - 10.25077/jif.15.1.1-12.2023 UR - http://jif.fmipa.unand.ac.id/index.php/jif/article/view/499 SP - 1-12 AB - <p class="52Abstractbody">A study was performed comparing the performance of UO2 and (Th,U-233)O2 fuel in small long-life PWR. The neutronic calculation carried out by PIJ module of SRAC2006 was done to a fuel cell in 10 years of operation. The calculation was conducted by varying the enrichment of U-235 in UO<sub>2</sub> and U-233 in (Th,U-233)O<sub>2</sub> for 1% - 20% and also by varying the fuel volume fraction for 40%, 45%, 50%, 55%, and 60%. The performance was observed by comparing the enrichment needed by each fuel type to gain criticality in 10 years, the infinite multiplication factor (<em>k</em>-inf) value, and the conversion ratio (CR) value. The calculation results showed that 60% fuel volume fraction gave critical conditions with the lowest infinite multiplication factor and highest conversion ratio for both fuel types. While in terms of fissile nuclide enrichment needed, (Th,U-233)O<sub>2</sub> had better performance than UO<sub>2</sub>, because only 5% U-233 was needed in (Th,U-233)O<sub>2</sub> while UO<sub>2</sub> needed 9% U-235 to gain criticality in 10 years of operation.</p> ER -