EVALUATION OF THE Al/, Cu/, Si/, Ag/WATER NANOFLUID EFFECTS ON HEAT TRANSFER CHARACTERISTICS IN VVER-1200 LOADED WITH PLUTONIUM-THORIUM-BASED FUEL

Genç, Yasin; Uzun, Sinem; Acır, Adem

doi:10.1615/heattransres.2021038401

Cited by 5 publications

(2 citation statements)

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“…It is expected that the coolant material used to absorb the heat generated by the chain fission reactions occurring in the nuclear reactor core will absorb the maximum heat from the system. In order to do this, there are suggestions about adding nanoparticles to the coolant water in order to improve the heat conduction properties [17][18].…”

Section: Thermal Analysismentioning

confidence: 99%

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Nükleer Reaktörlerde Nanoparçacık Olarak Kalsiyum Karbonat Kullanımının Araştırılması

Uzun

Genç

Acır

2023

Konya Journal of Engineering Sciences

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In this study, calcium carbonate (CaCO3) was considered as nanoparticle. In the first part of the study, half-value layer (HVL) and mean free path (MFP) values, which are radiation shielding parameters, were investigated in determined energy ranges by Phy-X open access software. At increasing energy levels, the HVL value reached approximately 10 cm, while the MFP value reached approximately 17 cm. In the second part of the study, the reactor core geometry was modeled with the MCNP code and then the relative power distribution values were determined. COBRA code input was prepared with the determined relative power distribution values and thermal analyzes were made. These analyzes were performed for three different nanoparticle ratios. As a result of the analysis, the temperature value at the end of the channel was 613 K when only water was used as a coolant, while the temperature value at the end of the channel was 611.19 K when 0.03% nanoparticles were used. Although the coolant temperature increased with the nanoparticle ratio, it was observed that the temperature decreased when only water was used.

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Section: Thermal Analysismentioning

confidence: 99%

“…The use of nanoparticles in nuclear systems has recently started to increase. Because of the thermal conductivity properties of the nanoparticles used, the efficiency of the system can be increased [17][18]. The nanoparticles used so far have had a positive effect on the system efficiency by increasing the coolant temperature.…”

Section: Introductionmentioning

confidence: 99%