Thermal-Hydraulic Investigation of LBE Cooled Wire-Wrapped Fuel Bundle Based on Entropy Generation Analysis

Zhang Dong; Zhang Haochun; Wang Qi; Sun Wenbo

doi:10.13832/j.jnpe.2022.S2.0125

Volume 43 Issue S2

Dec. 2022

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Zhang Dong, Zhang Haochun, Wang Qi, Sun Wenbo. Thermal-Hydraulic Investigation of LBE Cooled Wire-Wrapped Fuel Bundle Based on Entropy Generation Analysis[J]. Nuclear Power Engineering, 2022, 43(S2): 125-130. doi: 10.13832/j.jnpe.2022.S2.0125

Citation:

Zhang Dong, Zhang Haochun, Wang Qi, Sun Wenbo. Thermal-Hydraulic Investigation of LBE Cooled Wire-Wrapped Fuel Bundle Based on Entropy Generation Analysis[J]. Nuclear Power Engineering, 2022, 43(S2): 125-130. doi: 10.13832/j.jnpe.2022.S2.0125

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Thermal-Hydraulic Investigation of LBE Cooled Wire-Wrapped Fuel Bundle Based on Entropy Generation Analysis

doi: 10.13832/j.jnpe.2022.S2.0125

School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, 150000, China

Received Date: 2022-07-21
Rev Recd Date: 2022-08-30
Publish Date: 2022-12-31

Abstract

Abstract

In order to analyze the thermal hydraulic characteristics of LBE cooled fast reactor fuel assemblies from the point of view of design and operation, based on the finite volume method, 19 LBE cooled fuel rod bundles with wire-wrapped structures are numerically simulated. The flow and heat transfer characteristics of fuel assemblies under different mass flow rates and thermal power are analyzed. The entropy generation characteristics and thermodynamic irreversibility of coolant under different working conditions are studied by entropy generation analysis method. The results show that the secondary flow and the distribution of entropy generation show periodic changes in the axial direction; the inlet velocity is the main factor affecting the secondary flow and entropy generation distribution; On the premise of ensuring structural safety, increasing coolant flow rate appropriately is conducive to improving the thermal economic performance of the coolant.
- Lead-bismuth eutectic,
- Fuel bundle,
- Secondary flow,
- Entropy generation analysis

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References(9)

References

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