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Arab Journal of Nuclear Sciences and Applications
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Volume Volume 52 (2019)
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Volume Volume 51 (2018)
helmy, S., Fahmy, A., El-Feky, A., El-Sahlamy, N., Elkhatib, H. (2019). Investigation of Thermal-Hydraulic Behavior of Supercritical Water Reactor Using Thorium-Uranium Oxide Fuel (ThO2 – UO2). Arab Journal of Nuclear Sciences and Applications, 52(2), 35-44. doi: 10.21608/ajnsa.2019.4062.1094
salwa helmy; Adel Fahmy; Adel El-Feky; Neama El-Sahlamy; Hesham Hasaneen Elkhatib. "Investigation of Thermal-Hydraulic Behavior of Supercritical Water Reactor Using Thorium-Uranium Oxide Fuel (ThO2 – UO2)". Arab Journal of Nuclear Sciences and Applications, 52, 2, 2019, 35-44. doi: 10.21608/ajnsa.2019.4062.1094
helmy, S., Fahmy, A., El-Feky, A., El-Sahlamy, N., Elkhatib, H. (2019). 'Investigation of Thermal-Hydraulic Behavior of Supercritical Water Reactor Using Thorium-Uranium Oxide Fuel (ThO2 – UO2)', Arab Journal of Nuclear Sciences and Applications, 52(2), pp. 35-44. doi: 10.21608/ajnsa.2019.4062.1094
helmy, S., Fahmy, A., El-Feky, A., El-Sahlamy, N., Elkhatib, H. Investigation of Thermal-Hydraulic Behavior of Supercritical Water Reactor Using Thorium-Uranium Oxide Fuel (ThO2 – UO2). Arab Journal of Nuclear Sciences and Applications, 2019; 52(2): 35-44. doi: 10.21608/ajnsa.2019.4062.1094

Investigation of Thermal-Hydraulic Behavior of Supercritical Water Reactor Using Thorium-Uranium Oxide Fuel (ThO2 – UO2)

Article 6, Volume 52, Issue 2, April 2019, Page 35-44  XML PDF (627.5 K)
Document Type: Original Article
DOI: 10.21608/ajnsa.2019.4062.1094
Authors
salwa helmy email 1; Adel Fahmy2; Adel El-Feky2; Neama El-Sahlamy1; Hesham Hasaneen Elkhatib3
1Nuclear and Radiological Regulatory Authority (NRRA), Cairo, Egypt
2Reactors Department, Nuclear ResearchCenter, Atomic Energy Authority, P.O.13759, Cairo, Egypt
3bNuclear reactors department, NRC Center, Egyptian Atomic Energy Authority
Abstract
A computer program by (EES), Engineering Equation Solver has been produced for inquiry of the fuel, clad and coolant temperatures under supercritical conditions for supercritical water reactor powered by ThO2 – UO2 mixture as a fuel. In the calculation, uniform axial heat flux and average channel were considered. The bulk fluid, clad and fuel temperatures along fuel length were obtained for supercritical pressures 26, 30 and 40 (MPa). Also the UO2 percentage added to ThO2 was varied as, 4% and 10%. It was found that the maximum fuel temperature reached 2193 (oC) in case of 4% UO2 and 2182 (oC) in case of 10% UO2, which is surpasses the industry limit of 1850 (OC).Thermal conductivity is essential parameterto understand the performance of the fuel pin under irradiation.Other important thermo-physical properties to be considered are melting point and density.Thorium and uranium oxide fuels utilized in nuclear reactors have very high melting point, but low density and they suffer from poor thermal conductivity
Keywords
Key Words‌‌‌‌‌‌ -(Th; U)O2 pellets; Thermal conductivity; thermal hydraulic; supercritical
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