Comparative Study of UO2 and (Th,U-233)O2 Performance in Small Long-Life PWR Fuel Cell


  • Mardiana Napirah Department of Physics Education, Faculty of Teacher Training and Education, Universitas Halu Oleo, Jl. H.E.A. Mokodompit No. 1, Kendari, 93232, Indonesia, Indonesia
  • Zaki Su'ud Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha No. 10, Bandung, 40132, Indonesia, Indonesia



Thorium Fuel, Uranium Fuel, Pressurized Water Reactor, Small long-life reactor, Fuel Cell


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 UO2 and U-233 in (Th,U-233)O2 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 (k-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)O2 had better performance than UO2, because only 5% U-233 was needed in (Th,U-233)O2 while UO2 needed 9% U-235 to gain criticality in 10 years of operation.


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How to Cite

Napirah, M., & Su’ud, Z. (2022). Comparative Study of UO2 and (Th,U-233)O2 Performance in Small Long-Life PWR Fuel Cell. JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS, 15(1), 1–12.



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