Neutronic and thermal-hydraulic analysis of alternative ceramic fuels in the next-generation of light water reactors

Saadi, M. Kheradmand; Bashiri, B.

doi:10.1016/j.pnucene.2015.11.002

Cited by 7 publications

(3 citation statements)

References 10 publications

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“…The density of heavy materials in this fuel is less than the one ofalternativeceramic fuels. Heat transfer in UO 2 fuel, unlike ceramic fuels, decreases with increasing temperature and causes high temperature changes in the fuel [11].…”

Section: Ceramic Fuels 21 Oxide Fuelmentioning

confidence: 99%

“…Using alternative fuels in LWR reactors leads to the production of reactors with water-cooled generators. This reactor is more attractive to industry in terms of extensive industrial technology, reliable cost estimates, the massive experience and operational base of LWRs [11].…”

Section: Introductionmentioning

confidence: 99%

“…Saadi et al, presented the neutronic and thermo-hydraulic calculations for UO 2 , UN, 15 UN, and UC fuels for the US-APWR reactor as an advanced third generation reactor design [11]. In this study the MCNPX2.6 code was used to calculate the cycle length, the excess reactivity, the neutron spectrum, and the 239 Pu build-up.…”

Section: Introductionmentioning

confidence: 99%

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Neutronic analysis of alternative ceramic fuels in the next generation of VVER-1000/V446 reactor

Rahimi,

Heidari,

Kheradmand Saadi

et al. 2023

Phys. Scr.

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One of the most important issues in nuclear fuel management is burnup increase, which impacts significantly on the reactor cycle length. Burnup enlargement specifically leads to reducing the cost of electricity generation and increasing efficiency. In the present study, the neutronic analysis of some alternative ceramic fuels includingUN, 15UN, and UChas been performedthe VVER-1000/V446 reactor, comparing with the conventional UO2. Being single-ligand, the alternative fuels’ density of heavy metals such as uranium is greater than UO2’s one. Therefore, the absorption and fissionamounts in thesefuels will be higher than theones in UO2 fuel. By modellingVVER-1000/V446 reactor with MCNPX2.6 Monte Carlo code, we showed that the excess reactivity value for UC fuel (169.173 ∆K/K) increased compared to UO2 fuel (165.526). Due to the ultra-high burnup, the reactor cycle length is 398 days for 15UN fuel, while it is 270, 308, and 130 days for UO2, UC, and UN fuels, respectively, and has increased by 47%. Therefore, the use of alternative fuels has advantages like plant construction cost reduction.excess reactivity, discharge burn up, making them suitable substitution of conventional UO2 for the next generation of LWRs.

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Section: Ceramic Fuels 21 Oxide Fuelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%