타이타늄 나노입자를 이용한 소듐-물 반응성 저감효과 연구

DoctorThe Sodium-Water Reaction (SWR) is a serious problem in Sodium-cooled Fast Reactor (SFR). When liquid sodium (Na) contacts water inside a heat exchanger, a strong chemical reaction occurs and increases the pressure of the system. To suppress this strong reaction during SWR, Na-based Titanium Nanofluid (NaTiNF), i.e., liquid Na that included dispersed Ti NPs (≤100 nm) has been suggested. Suppression of chemical reactivity in reaction between Na and water by NaTiNF was verified by measuring the hydrogen generation rates of the NaTiNF-water reaction and temperature increase of the NaTiNF-water vapor reaction. In NaTiNF-water reaction, NaTiNF showed the lower reaction than Na, but the suppression effect of NaTiNF became smaller as reaction temperature increased. From the visualization of NaTiNF-water vapor reaction, TI NPs on the Na surface affects the reaction rate. As the Ti NP concentration increased, reactivity of Na reduced. This indicated the Ti NPs on Na surface ruled the important factor in suppression of reactivity of SWR

Reduction of chemical reactivity of liquid sodium by Ti nanoparticles

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티타늄 나노입자가 분산된 소듐 나노유체의 열전도도 변화

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The Effect of Ni Nano Particles on the Chemical Activity of Liquid Sodium

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Progress in the Study of PCHE Performance with Various Stacking Methods;PCHEs and Test Facility

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Boiling CHF enhancement by micro and nano scale structures on modified zirconium alloy

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Chemisorption of Na on the Ti Nanoparticle surface and its effects on the Na-H2O reaction reactivity

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Dispersion behavior of 10nm Ti nanoparticle in liquid Na: theoretical approach

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Pool boiling CHF enhancement by liquid spreading on modified zirconium alloy

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Investigation of Na-CO2 reaction with initial reaction in various reacting surface

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